Products eligible for the Grow Tent Builder bundle code (excludes MAP-protected Quest, Anden and dehumidifiers).
Tent Builder eligible
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Author: Dr. Arden B. Andersen Anatomy of Life & Energy in Agriculture
by Dr. Arden B. AndersenThe energies in fertilizers and in the cosmos do not often move needles, but they preside over crop production. As this manual makes clear, through learning to tap and use "life-force energy" it is possible to develop food production practices that are both high quality and nondestructive.Dr. Arden B. Andersen begins his work with the premise that 'energy is everything'. Through this axiomatic lens, Andersen examines agriculture as a practice of balancing energy and harmonizing energy frequencies to produce life. By approaching agriculture in this way, farmers can harness 'life-force energy' to produce healthful and plentiful crops in a manner that is sustainable and even beneficial to the natural environment. This manual is a compelling blend of sophisticated science and simple practices for farmers, agronomists, and agriculturalists alike. Andersen offers an insightful appreciation of farming that teaches readers how to transform agriculture into a process that is both robust and ecologically sound. In doing so, he envisions a successful method of farming for the 21st Century. Copyright 2004, 2014, softcover, 114 pages
$19.99
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Milwaukee Instruments Milwaukee PH55 PRO Waterproof pH & Temperature Tester with ATC & Replaceable Probe
The Milwaukee Waterproof pH55 PRO pH/Temp. Tester is one of our most accurate cost effective, well rounded, rugged and reliable testers in the market featuring dual level LCD readouts, easily replaceable probe and extended pH ranges to meet almost any application. It's simple 1 or 2 point automatic calibration is simple-to-use and offers TWO sets of memorized buffers to select. Ideal for use in aquariums, hydroponics, horticulture, education, pools, beer and many other applications.The Milwaukee Waterproof pH55 pH/temp. tester offers: ACCURACY The Waterproof pH55 PRO tester is accurate to ±0.1 pH & +/-0.5°C (+/-1°F) and is easy to read.With easy 2 point automatic calibration, this pH tester is quickly calibrated to an accuracy of much more expensive meters. Simple design and rugged, it brings great value for any application. Why guess at your readings using litmus paper when you can have guaranteed accurate, digital LCD results. LONG LIFE The tester comes with a replaceable pH probe with a double junction probe designed for longer life. FAST RESPONSE The probe is double junction allowing quick, accurate pH readings and respose times. WATERPROOF CONSTRUCTION No more worries about dropping your tester while measuring. The pH55 PRO is waterproof to IP65. LIGHT WEIGHT At just 3.5 ounces, the pH55 PRO is easy to handle at up to half the weight of other testers. EASE-OF-USE A large Dual Level LCD screen with easy-to-read graphic symbols, makes it easy while calibrating or reading your measurement. This takes the takes the guess work out of litmus paper. DESIGN FEATURES Fast easy to read results with large digital LCD readout. Extreme pH accuracy to ±0.1 pH with an extended pH range (-2.0 pH to 16.0 pH). Resolution to 0.1 pH. Lightweight and portable. Easy measurement: just place the probe in the sample, gently stir, wait for the stability indication to show a stable reading and then freeze the reading. Is fully compensated for temperature (ATC). Simple Automatic one or two-point calibration. 2 Sets of pre-memorized buffers. Gel-filled, double junction pH electrode for low maintenance and high performance. Over 300 hours of battery life (batteries included). Fully waterproof to IP65. Replaceable pH electrode Mi56P. CARE AND USE All pH sensors have a limited life and response time gets longer with age. Properly maintaining your pH pen tester will give you fast, accurate results for longer. So, be sure to order the Milwaukee pH Maitenance Kit code PH-Main at checkout time! This will be needed to help clean and condition the pH electrode before use!Here are our top four tips. 1. Always store with the cap full of buffer or storage solution MA9015 not water. 2. Clean your Tester regularly by soaking in cleaning solution MA9016. 3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH sensor. 4. Gently stir the Tester in the sample for a faster result. SPECIFICATIONS pH Range: -2.0 to 16.0 pH Temperature Range: -5.0 to 60.0°C (23 to 140°F) pH Resolution: 0.1 pH pH Accuracy: ±0.1 pH Temperature Accuracy: ±0.5°C (±1°F) Typical EMC Deviation: ±0.1 Typical EMC Temperature Deviation: ±0.3°C (±0.6°F) Temperature Compensation: Automatic from -5 to 60°C (23 to 140°F) Calibration Automatic: 1 or 2 points with 2 sets of pre-memorized buffers (pH 4.01, 7.01, 10.01) or (pH 4.01, 6.86, 9.18) Probe: Replaceable double junction for extended life (Mi56P) Environment: -5 to 50°C / 23 to 122°F; max RH 100% Battery Type: 4 x 1.5V; IEC LR44, A76 (included) Battery Life: Approx. 300 hours of use Auto-off: after 8 minutes on non-use Dimensions: 7.9 inches × 1.5 inches (diameter) Weight: 3.5 ounces (99.22 g)
$60.00
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Author: Uwe Bleschinh, Ph.D. The Health Index: Combining the Science of MMJ with Mindfulness Techniques To Heal 100 Chronic Symptoms and Diseases
A sourcebook by Uwe Blesching, Ph.D., a former paramedic, that pulls together findings from more than 1,000 studies in cannabinoid and consciousness research. The Cannabis Health Index is organized alphabetically into condition-specific chapters, from aging to wound care. Each chapter includes the author's ratings of the research, notes on use, and sidebars on related mindfulness-based practices.
$24.95
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Ambrosia Cropz Ambrosia Cropz Vegetative Growth Formula - 25lb
Ambrosia Cropz Vegetative Growth Formula contains an optimal blend of macro nutrients nitrogen, phosphorous, and potassium. Ambrosia Cropz Vegetative Growth formula contains more nitrogen and less phosphorous than Ambrosia Cropz Fruit & Flower Formula and is intended to match the nutrient uptake of the plant in the vegetative growth phase. Ambrosia Cropz Vegetative Growth formula contains a complete and balanced blend of micro nutrients iron, manganese, copper, zinc, boron, and molybdenum. Ambrosia Cropz Vegetative Growth Formula was developed to encourage vigor, yield, and success in every crop.
$169.99
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Build-A-Soil Build A Soil Certified Organic Straw Mulch - 2gal
Barley straw mulch for a small garden, in a 2 gal size. Coverage For reference, 1 cubic foot of straw doesn't weigh much but will easily mulch 6-12 plants, depending on the depth of mulch and the size of the container. The straw is compressed when baled and is not fluffed up before packaging, so 1 bag holds more than you might think. Good to know Expect some foreign dried plant material, as there always is with any straw bales.
$23.00
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DL Wholesale Grow1 Barbed Cross Connector - 1/4" (PACK OF 10)
Made for 3/16", inner diameter, 1/4", outer diameter hoses. Sold in packs of 10.
$3.59
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Author: Lizzie Post Higher Etiquette: A Guide to the World of Canna from Dispensaries to Dinner Parties
Emily Post has gone to pot. As we enter the dawn of a new "post-prohibition" era, the stigma surrounding cannabis use is fading, and the conversation about what it means to get high is changing. When it comes to being a respectful, thoughtful, and responsible consumer of pot, there is a lot you need to know. In Higher Etiquette, Lizzie Post--great-great granddaughter of Emily Post and co-president of America's most respected etiquette brand--explores and celebrates the wide world of legalized weed. Combining cannabis culture's long-established norms with the Emily Post Institute's tried-and-true principles, this book covers the social issues surrounding pot today, such as: • How to bring it to a dinner party or give it as a gift • Why eating it is different from inhaling it • How to respectfully use it as a guest • Why different strains affect you in different ways • How to be behave at a dispensary • How to tackle pot faux pas such as "canoed" joints and "lawn-mowed" bowls This handy guide also provides a primer on the diverse array of cannabis products and methods of use, illuminating the many convenient and accessible options available to everyone from experienced users to newbies and the canna-curious. Informative, charming, and stylishly illustrated, this buzzworthy book will make the ultimate lit addition to your stash.
$19.99
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Netafim Netafim .5 GPH Single Drip Stake Assembly 36" (SOLD AS SINGLES, NOT BUNDLE)
Netafim single dripper stake assemblies come fully assembled and streamline the installation process. Choose between 18, 24, 30, 36 or 48 inch assemblies that can install right where you need it. Dripper assembly uses a 0.5 gph pressure compensating emitter with CNL check value, 18, 24, 30, 36 or 48 inches of Super Flex Tubing and an angled barbed stake. Minimum operating pressure is 10 psi. Pair with the Netafim Punch Tool, Netafim UV Polyethylene Tubing and Netafim Techlock fittings and fine tune your drip irrigation system.
$2.77
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Build-A-Soil Build A Soil Agsil16H Potassium Silicate - 2LB
AGSIL16H is manufactured by PQ corporation and is one of the few silica products on the market that is water soluble. This simple powder will save money over buying water based Silica Bottle products. This is approved for organic use as a foliar spray and is an excellent oil emulsifier.See the MSDS report here: AGSIL16H MSDS PDFCompare to Pro-Tekt, Rhino Skin, Silica Blast and all other Silica Bottled products. There is no secret ingredient, all are made from potassium silicate.
$44.00
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Advanced Nutrients Advanced Connoisseur Grow Part A - 1L
PH PERFECT CONNOISSEUR GROW PART AStrictly for the Experts: an Ultra-Premium 2-Part Grow-Phase Base Nutrient Uniquely Formulated for Experienced Growers!If you're already a top-notch grower praised by customers and friends, and you've already maxed out the potential of your current feeding program and if, after all that success, you still want even more yield then Advanced Nutrients flagship formulation, pH Perfect Connoisseur Grow, is for you. No expense has been spared in sourcing only the most potent, powerful ingredients, that help to drive your crops to the most productive grow phase possible. This world-class formulation will absolutely satisfy your every need. And if that weren't enough, you can throw away your pH meters and pens because pH Perfect Technology automatically keeps the pH in the sweet spot every week of your grow. The bottom line: There's no better base nutrient for elite growers who want to get the maximum genetic potential from their plants. And if you're not completely satisfied with your results using this breakthrough base nutrient, you get 100% of your money back thanks to our Grower Guarantee!If you follow the label directions, pH Perfect Connoisseur Grow Part A will keep the pH of your nutrient solution stable within a range optimal for nutrient uptake for one week. For optimal results, we recommend using reverse osmosis (RO) water or water up to approximately 100 ppm (EC 160 S/cm). This product is specially designed for use with diverse hydroponic growing media, including peat, rockwool, and expanded clay pellets, and all continuous liquid-feed growing systems such as aeroponics, drip irrigation and emitters, NFT, flood and drain, and deep water culture. And since it also contains our proprietary pH PerfectTechnology, eliminating the need for pH and ppm metering, pH Perfect Connoisseur Grow Part A is an invaluable asset to your growroom.
$23.84 $20.26
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General Hydroponics GH Ripen - 1 QT
Ripen 0.5-7-6 promotes increased and abundant flowering with greater oil and fragrance production. Ripen is highly concentrated and provides macronutrients that are primarily responsible for flower and fruit growth. Ripen is a liquid nutrient that has been specifically engineered and developed to provide these essential macronutrients in your high value crops life. Use Ripen during the final one-to-two weeks to promote robust flower and fruit production. Think of Ripen as an investment in your plants.
$40.46 $34.39
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Milwaukee Instruments Milwaukee MC310 PRO Conductivity (EC) Monitor
The MC310 EC automatically monitors your EC levels. Just set your EC parameters and let the Milwaukee EC monitor do the rest.The Milwaukee PRO EC monitor is preferred by people looking to dial in their testing program when they have an ongoing need to maintain levels. Common uses are nutrient tanks, hydroponics, and horticulture.The Milwaukee PRO EC monitor offers:ACCURACYThe Milwaukee PRO EC monitor offers an accuracy to ±2% full scale.AUTOMATIONThe monitor has a set-point range from 1.0 to 5.0 mS/cm with alarms that activate when readings are higher or lower than set point.EASY INSTALLATIONThis EC monitor comes with a complete mounting kit including a probe holder.DESIGN FEATURESFast easy to read current results with large digital LCD readout and visual LED alarm.Accurate to ±2% full scale (0.0 to 10.0 mS/cm) with the user selectable high/low set points.Simple one-point calibration for increased accuracy with manual trimmers for easy adjustment.MA812/2 hardwired EC probe included.6.5 feet (2 meter) probe cables for extra flexibility when testing.12 VDC power supply.Easy to use, easy set up.SPECIFICATIONSRange: 0.0 - 10.0 mS/cmResolution: 0.1 mS/cmAccuracy: ±2% F.S.Calibration: Manual, 1-pointSet point: 1.0 to 5.0 mS/cmAlarm: Visual, active when reading is higher or lower than set pointTemperature Compensation: Automatic, from 0 to 50°C | 32 to 122°FEC electrode: MA812/2 (included)Environment: 0 to 50°C / 32 to 122°F; max RH 95%Power Supply: 12 VDC adapter (included)Power Drivers: 115 VAC, 2A, 60Hz or 230 VAC, 1A, 50HzMounting kit (Included)Dimensions: 5.9 x 3.2 x 1.35 inches (148.5 x 82.5 x 32 mm)Weight: 6.3 ounces (180 g) (meter only)
$134.15
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Milwaukee Instruments Milwaukee MC110 PRO pH Monitor Mid Range
The Milwaukee MC110 PRO Mid Range pH monitor offer lab grade accuracy with an easily viewable continuous check on pH levels with alarms.DESIGN FEATURESFast easy to read results with large digital LCD readout.Accuracy to ± 0.2 pH with a full 0 pH to 14 pH range.Set point range of 3.5 to 7.5 pH with visual alarm activated when reading is higher or lower than set point.Comes with full mounting kit including probe holders.Lab grade probe included with a double junction, gel filled design for low maintenance. Starter Calibration 1 x 20 mL solution M10007B (7.01 pH).MILWAUKEE PRO PH PROBE CARE pH meters usually start performing poorly because of problems with the probe. The two parts of the pH probe that cause problems are the glass sensing bulb and the reference junction.SENSING BULBThe glass bulb loses sensitivity with use and will eventually fail. This is true of all pH probes.REFERENCE JUNCTIONThe reference junction is a small hole that allows the meter to compare the sample to a reference. The reading is generated based on the electrical difference between the sample and reference. If the junction hole gets clogged, the pH pen will no longer function.You can extend the life of your pH electrode in the following ways.STORAGEThe pH probe needs to be kept hydrated. Long periods of dry storage will damage the sensitivity of the probe. Allowing the probe to dry out may also result in the junction hole getting clogged.Storing in pH probe storage solution or pH calibration buffers will help address both these issues.Do not store in tap water and DI water. This will damage the sensitivity of the probe.This best way to store the probe is with the probe's cap filled with storage solution or calibration buffer and the cap tightened to prevent leakage. It is also recommended that to store the electrode upright to further reduce the potential for leakage.CLEANINGResidue from the sample can impact the sensitivity of the sensing bulb and block the junction. This is especially true if the sample has a lot of organic material. We recommend regularly soaking the probe in cleaning solution.CALIBRATIONThe pH sensing bulbs become less sensitive over time so make sure that you are calibrating reguarly to keep your PRO pH meter accurate. Also, calibrate after cleaning or a long period of storage.SPECIFICATIONpH Range: 0.0 - 14.0 pHpH Resolution: 0.1 pHpH Accuracy: ± 0.2 pHCalibration: Manual 2 pointsSetpoint range: 3.5 to 7.5 pHAlarm Active: when reading is higher or lower than set pointpH Electrode: MA911B/2 (included)
$134.15
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Milwaukee Instruments Milwaukee EC60 PRO Waterproof 3-in-1 EC / TDS/Temp Tester with Replaceable Probe
The Milwaukee EC60 PRO Conductivity Tester is designed for hydroponic and other growers to help you make sure that your plants have the ideal amount of nutrient avaiable. Keep EC in your target range to help your achieve better results.DESIGN FEATURESMeasures conductivity and TDS with automatic temperature compensation.Ideal range for hydroponic and other growers (0.00 to 20.00 mS/cm).Units in mS/cm or ppt easily convertable to ppm.Factory calibrated with the ability to recalibrate if needed.Replaceable electrode.Fully waterproof to IP65.Approximately 100 hours of use (4 x 1.5V batteries included).CARE AND USEMAINTENANCEEC electrodes can develop nutrient build up over time. To miminize build up, always rinse the probe in fresh tap water after every use.CONVERTING EC TO TDSThe Milwaukee EC60 PRO Conductivity Tester, like all conductivity meters, provides a measure of electrically charged ions in a solution and is an absolute measure of conductivity.In Hydroponics, EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scale, 650 scale and the 700 scale. However, true PPM can only be determined through chemical analysis.Your mS/cm reading can be approximately converted to TDS (ppm) as shown in the examples below.2.00 mS/cm = 2000 uS/cm = 1000 ppm on .50 factor scale2.00 mS/cm = 2000 uS/cm = 1400 ppm on the 442 scale or .70 factor scaleSPECIFICATIONSEC Range: 0.00-20.00 mS/cmTDS Range: 0.00-10.00 pptTemp Range: 0.0 to 60.0°C / 32.0 to 140.0°FEC Resolution: 0.01 mS/cmTDS Resolution: 0.01 pptTemp Resolution: 0.1°C / 0.1°FEC Accuracy: 2% Full ScaleTDS Accuracy: 2% Full ScaleTemp Accuracy: ±0.5°C / ±1°FEC Typical EMC Deviation: 2% Full ScaleTDS Typical EMC Deviation: 2% Full Scale TempTypical EMC Deviation Temperature: ±0.5°C / ±1°FCalibration: Automatic, 1 pointTemperature Compensation: Automatic, with β=0.0 to 2.4%/°CProbe: Mi59P (replaceable)Environment: 0 to 50°C / 32 to 122°F; max RH 100%Battery Type: 4 x 1.5V; IEC LR44, A76 (included)Battery Life: Approx. 100 hours of useAuto-off: After 8 minutes of non-useDimensions: 7.9 × dia 1.5 inchesWeight: 3.5 ounces
$60.00
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Milwaukee Instruments Milwaukee MW100 PRO pH Meter
The Milwaukee MW100 PRO pH meter features manual calibration and fast operation in a rugged design.The Milwaukee MW100 PRO pH Meter is ideal for users in pools, and hydroponic applications. This meter is also ideal for educators that want their students to learn the basics of pH meter calibration before going fully automatic.The Milwaukee PRO pH meter offers:SPEEDThe MW100 delivers fast results to ±0.2 pH accuracy with two-point, manual calibration.TOUGHNESSThis rugged meter is designed to take knocks. Paired with the low maintenance, lab grade SE220 double junction, gel filled, epoxy electrode, the MW100 is ideal for everyone from educators and pool professionals to hydroponics growers.DESIGN FEATURESFast easy to read results with large digital LCD readout.Accurate to ±0.2 pH with a 0.0-14.0 pH range.Lightweight, ergonomic and portable.Easy measurement: just place the probe in the sample, gently stir and wait for the reading to stabilizeSimple manual two-point calibration for increased accuracy.Gel-filled, double junction lab grade pH electrode for low maintenance and high performance with a screw on cap to ensure proper storage (SE220 probe included).3 feet probe cables for extra flexibility when testing.Low battery indicator.Battery life of approx. 300 hours of continuous use. (battery included)USE AND CARE pH meters usually start performing poorly because of problems with the probe. The two parts of the pH probe that cause problems are the glass sensing bulb and the reference junction.SENSING BULBThe glass bulb loses sensitivity with use and will eventually fail. This is true of all pH probes.REFERENCE JUNCTIONThe reference junction is a small hole that allows the meter to compare the sample to a reference. The reading is generated based on the electrical difference between the sample and reference. If the junction hole gets clogged, the pH probe will no longer function.You can extend the life of your pH electrode in the following ways.CLEANING AND STORAGEAll pH sensors have a limited life and response time gets longer with age. Properly maintaining your pH pen tester will give you fast, accurate results for longer. So, be sure to order the Milwaukee pH Maitenance Kit code PH-Main at checkout time! This will be needed to help clean and condition the pH electrode before use!STORAGEThe pH probe needs to be kept hydrated. Long periods of dry storage will damage the sensitivity of the probe. Allowing the probe to dry out may also result in the junction hole getting clogged.Storing in pH probe storage solution MA9015 or pH calibration buffers will help address both these issues. Do not store in tap water and DI water. This will damage the sensitivity of the probe.The best way to store the probe is with the probe's cap filled with storage solution or calibration buffer and the cap tightened to prevent leakage. It is also recommended that to store the electrode upright to further reduce the potential for leakage.CLEANINGResidue from the sample can impact the sensitivity of the sensing bulb and clog the junction. This is especially true if the sample has a lot of organic material. We recommend regularly soaking your electrode in cleaning solution MA9016.CALIBRATIONThe pH sensing bulbs become less sensitive over time so make sure that you are calibrating reguarly to keep your PRO pH meter accurate. Also, calibrate after cleaning or a long period of storage.SPECIFICATIONSpH Range: 0.0 to 14.0 pHpH Resolution: 0.1 pHpH Accuracy: ±0.2 pHCalibration: Manual, 2-pointpH Electrode: SE220 with 3 foot cable (included)Environment: 0 to 50°C / 32 to 122°F; max RH 95%Battery Type: 1 x 9V (included)Battery Life: Approx. 300 hours of continuous useMeter Dimensions: 5.7 x 3.1 x 1.6 inches (145 x 80 x 40 mm)Meter Weight: 0.5 lbs. (with battery) (0.22 kg)Packaged Dimensions: 8.35 x 5.71 x 2.64 inches (212 x 145 x 67 mm)Packaged Weight: 0.97 lbs. (0.49 kg)
$152.50
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Gaia Green Gaia Green Mineralized Phosphate - 2 kg
Mineralized Phosphate is mined from caves and has a potent phosphorous content. Mineralized Phosphate has been known since ancient times to be a highly beneficial natural fertilizer. It provides nutrients to encourage large and plentiful blooms in your flowering plants and to enhance the flavor of vegetables.Benefits:A high phosphorus organic fertilizer with good plant availability. Known since ancient times to be a beneficial soil amendment. Suitable for increasing yield and quality of all flowering and fruiting crops.
$18.99
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Author: Michael Backes Pharmacy: The Practical Guide to MMJ -- Revised and Updated
In Cannabis Pharmacy, Michael Backes explains how cannabis works with the body's endocannabinoid system, how it is prepared and administered, and how to control dosage. This revised and updated edition adds the latest information on delivery and dosing, including e-cigarette designs, more cannabis varieties and a new system for classifying them, and 21 additional conditions.
$22.99
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Authors: Laurie Wollf with Mary Wolfe The Apothecary: A Pharm to Table Guide for Using to Promote Health, Wellness, Beauty, Restoration, and Relaxation
From author Laurie Wolf, the "Martha Stewart of marijuana edibles" (New Yorker), comes a beautifully packaged guide to cooking and living with cannabis and CBD. The Cannabis Apothecary covers how to buy, prepare and use THC and CBD, with recipes for brownies and body balms, mushroom tarts and massage oils. Wolf, creator of "the absolute best cannabis brownie recipe of all time" (Leafly), traces the history of the plant from early cultivation to current research, with stops at a growing farm in Oregon and an "elevated" yoga class in Massachusetts. The book covers: How cannabis works with the body's endocannabinoid system, and how to prepare and control dosage How to acquire and store cannabis safely The flavor profiles of cannabis strains, and how to pair them with ingredients when cooking and entertaining How to mix THC butters and oils How to extract CBD and THC for homemade topical lotions and bath balms It also includes information on growing your own cannabis, plus recipes for sweet and savory foods and homemade beauty products.
$35.00
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Build-A-Soil Build A Soil - Wettable Sulfur 1LB
Wettable sulfur is a soil amendment you can introduce into your soil. Wettable sulfur, and sulfur in general, is a tool to lower the pH levels in soil. This is the 1 lb size. Good to know Too much sulfur makes the soil show too much salt, and the plants suffer, so measurement and experience will be helpful.
$26.00
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Gaia Green Gaia Green - Super Fly 750g
GAIA GREEN Super Fly Insect Frass is a fertilizer derived from the excreta of black soldier fly larvae. It is a renewable resource produced from pre-consumer food waste fed to fly larvae. Though new to growers, this digested material has played a significant role in plant nutrition for millions of years. Gaia Green Super Fly Insect Frass is rich in essential nutrients.
$14.99
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Milwaukee Instruments Milwaukee EC40 EC/TDS Nutrient Meter
The Milwaukee EC/TDS Nutrient Meter is designed for Hydroponics, horticulture and agriculture to help you make sure that your vegetables and plants are receiving the right amount of nutrient to promote healthy growth with low to zero product waste. Keep EC/TDS in your target range to help your achieve better results.DESIGN FEATURESMeasures conductivity (EC) and total dissolved solids (TDS) with automatic temperature compensation.Ideal range for Hydroponics (0.2 to 4 mS/cm | 2 to 40 CF | 140 to 2800 ppm 0.7 scale | 100 to 2000 ppm 0.5 scale).Units directly in mS/cm/CF/PPM (no conversions required). Factory calibrated no continious calibration required.High accuracy.Automatic Temperature Compensation (ATC).Auto on/off feature.Blue LED display.Graphite electrode in ABC + PC body.Battery level indicators.Battery life up to 3 years with approx. 10 measurements per day.3 X 1.5V AA (batteries included).CARE AND USEMAINTENANCEEC/TDS electrodes can develop nutrient build up over time. To miminize build up, always rinse the probe in fresh tap or DI water after every use.CONVERTING EC TO TDSThe Milwaukee EC40 meter, like all conductivity meters, provides a measure of electrically charged ions in a solution and is an absolute measure of conductivity.EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scale, 650 scale and the 700 scale. However, the EC40 has all the readings direct EC/TDS/CF. Your uS/cm reading can be approximately converted to TDS (ppm) as shown in the examples below.1 uS/cm = 0.5 ppm on a .5 factor scale 1 uS/cm = 0.7 ppm on a .70 factor scale (442)SPECIFICATIONSRange: 0.2 to 4 mS/cmRange: 2 to 40 CFRange: 140 to 2800 ppm 0.7 scaleRange: 100 to 2000 ppm 0.5 scaleResolution: 0.1 mS/cmResolution: 1 CFResolution: 70 ppm (factor: 700 ppm = 1 mS/cm)Resolution: 50 ppm (factor: 500 ppm = 1 mS/cm)Accuracy: ±4% of reading, ± 1 resolution pointCalibration: Factory calibration (no additional calibration required)Probe: Graphite electrode in ABC + PC bodyTemperature Compensation: Automatic from 5 to 50°C (41 to 122°F)Battery Type: 3 x 1.5V AA (included)Battery Life: Approx. 3 years @ 10 tests per dayMeasurement Display: 20 blue LEDs barEnvironment: 0 to 50°C / 32 to 122°F; max RH 95%Dimensions: 17" inches length (420 mm) / 30 mm diameter (1.2")Weight: 9 ounces (255 g)Casing Protection: IP67, floating
$95.00
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Build-A-Soil Build A Soil Worm Castings Vermicompost - 1/2 CUFT
Worm castings (vermicompost) in a 1/2 cubic foot size. These castings are wet and moist, and they will often have live worms and cocoons inside.
$40.00
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Author: K of Trichrome Technologies Horticulture Fundamentals: A Comprehensive Guide to Cultivation and Production
The first and only grow book from Trichome Technologies' legendary breeder, K, this is a must-have for every grower on the planet, from rookie cupboard growers to commercial cultivators. Walking you through every single stage of growing, from learning about the plant itself to extracting your expertly grown trichomes into stellar-quality hash, K shares unknown tricks and tips from his 20-year career. Whether you're just starting out and want to know the best medium to use, or you've been growing all your life and want to optimize your set-up, this book tells you everything you want to know and more.
$30.00
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Author: Tommy McCarthy Growing: How to Plant, Cultivate, and Harvest Your Own
Marijuana seeds are legal to buy and—with some soil, water, and light—can grow into one of humanity’s favorite pastimes. Call it pot, bud, cannabis, ganja, dope—if you have the seeds, you can grow the weeds. Here are step-by-step directions to growing and managing your own marijuana plants. The author discusses both in-door and outdoor growing, including information on: • Choosing the right plants for your needs • Where to buy seeds • How to germinate the seeds • How to nurture the plants • How to prepare the final product • Problems to avoid • And more! In addition to more than 100 full-color, step-by-step photographs, the book features an extensive list of resources, making it the essential guide you need to grow your own weed.
$17.99
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