{"product_id":"trolmaster-wn-9-substrate-sensor-node-vwc-ec-and-temperature","title":"TrolMaster WN-9 Substrate Sensor Node, VWC, EC and Temperature","description":"\u003cp\u003eThe TrolMaster WN-9 is the add-on probe for the WCS-9 substrate sensor system. Stainless steel spikes read volumetric water content and EC, and a built-in sensor tracks root-zone temperature, in soil or high-EC soilless media. Daisy-chain up to four nodes to one WCS-9 display for an averaged reading that isn't thrown off by one hot spot or water channel.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMeasures VWC (0–100%), EC (0–30 mS\/cm) and root-zone temperature\u003c\/li\u003e\n\u003cli\u003eStainless steel sensing spikes\u003c\/li\u003e\n\u003cli\u003eUp to 4 nodes per WCS-9 sensor display (display sold separately)\u003c\/li\u003e\n\u003cli\u003eReads every minute, or every 10 seconds in Feed on Demand mode\u003c\/li\u003e\n\u003cli\u003eIncludes a 12 ft ECS-7 daisy-chain cable\u003c\/li\u003e\n\u003cli\u003eWorking environment: 32–122°F, up to 90% RH\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIn the box:\u003c\/strong\u003e WN-9 sensor node, ECS-7 12 ft daisy-chain cable.\u003c\/p\u003e","brand":"TrolMaster","offers":[{"title":"Default Title","offer_id":58665950380335,"sku":"WN-9","price":118.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/4875\/4479\/files\/img-b2fe167b95084974b2a7598daeff711d.jpg?v=1792164532","url":"https:\/\/mattshydroponics.com\/products\/trolmaster-wn-9-substrate-sensor-node-vwc-ec-and-temperature","provider":"Matt’s Hydroponics","version":"1.0","type":"link"}