{"product_id":"milwaukee-ec40-ec-tds-nutrient-meter","title":"Milwaukee EC40 EC\/TDS Nutrient Meter","description":"\u003cp\u003eThe 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.\u003cbr\u003eDESIGN FEATURES\u003cbr\u003eMeasures conductivity (EC) and total dissolved solids (TDS) with automatic temperature compensation.\u003cbr\u003eIdeal 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).\u003cbr\u003eUnits directly in mS\/cm\/CF\/PPM (no conversions required).¬†\u003cbr\u003eFactory calibrated no continious calibration required.\u003cbr\u003eHigh accuracy.\u003cbr\u003eAutomatic Temperature Compensation (ATC).\u003cbr\u003eAuto on\/off feature.\u003cbr\u003eBlue LED display.\u003cbr\u003eGraphite electrode in ABC + PC body.\u003cbr\u003eBattery level indicators.\u003cbr\u003eBattery life up to 3 years with approx. 10 measurements per day.\u003cbr\u003e3 X 1.5V AA (batteries included).\u003cbr\u003eCARE AND USE\u003cbr\u003eMAINTENANCE\u003cbr\u003eEC\/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.\u003cbr\u003eCONVERTING EC TO TDS\u003cbr\u003eThe 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¬†\u003cbr\u003e1 uS\/cm = 0.7 ppm on a .70 factor scale (442)\u003cbr\u003eSPECIFICATIONS\u003cbr\u003eRange: 0.2 to 4 mS\/cm\u003cbr\u003eRange: 2 to 40 CF\u003cbr\u003eRange: 140 to 2800 ppm 0.7 scale\u003cbr\u003eRange: 100 to 2000 ppm 0.5 scale\u003cbr\u003eResolution: 0.1 mS\/cm\u003cbr\u003eResolution: 1 CF\u003cbr\u003eResolution: 70 ppm (factor: 700 ppm = 1 mS\/cm)\u003cbr\u003eResolution: 50 ppm (factor: 500 ppm = 1 mS\/cm)\u003cbr\u003eAccuracy: ¬±4% of reading, ¬± 1 resolution point\u003cbr\u003eCalibration: Factory calibration (no additional calibration required)\u003cbr\u003eProbe: Graphite electrode in ABC + PC body\u003cbr\u003eTemperature Compensation: Automatic from 5 to 50¬∞C (41 to 122¬∞F)\u003cbr\u003eBattery Type: 3 x 1.5V AA (included)\u003cbr\u003eBattery Life: Approx. 3 years @ 10 tests per day\u003cbr\u003eMeasurement Display: 20 blue LEDs bar\u003cbr\u003eEnvironment: 0 to 50¬∞C \/ 32 to 122¬∞F; max RH 95%\u003cbr\u003eDimensions: 17\" inches length (420 mm) \/ 30 mm diameter (1.2\")\u003cbr\u003eWeight: 9 ounces (255 g)\u003cbr\u003eCasing Protection: IP67, floating\u003c\/p\u003e","brand":"Milwaukee Instruments","offers":[{"title":"Default Title","offer_id":58455878664495,"sku":"107643","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/4875\/4479\/files\/5f6bd739107643.jpg?v=1789191952","url":"https:\/\/mattshydroponics.com\/products\/milwaukee-ec40-ec-tds-nutrient-meter","provider":"Matt’s Hydroponics","version":"1.0","type":"link"}