{"product_id":"az-waterproof-ec-tds-meter-pen","title":"AZ Waterproof EC \u0026 TDS meter Pen","description":"\u003cp\u003eAZ Waterproof EC pens raise the bar in ease of use, reliability, function and price point. AZ meters provide a big IP65 LCD screen with dual EC and temperature display. Wide measuring range from 0-9999ppm and a temperature range of -5°C to +60°C. Waterproof IP65 keypad with simple calibration. Also includes a hold button to freeze current readings in low visibility. ATC (auto temperature compensation) ensures accurate readings in all climates. Auto off function maximizes battery life.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWide measuring range up to 160mS\u003c\/li\u003e\n\u003cli\u003eDual display Temp. \u0026amp; Conductivity or TDS with ATC\u003c\/li\u003e\n\u003cli\u003eWater proof IP65 membrane keypad\u003c\/li\u003e\n\u003cli\u003eLow cost design with high accuracy\u003c\/li\u003e\n\u003cli\u003eQuick response and easy to calibrate\u003c\/li\u003e\n\u003cli\u003eAdjustable TDS factor from 0.3 to 1.0\u003c\/li\u003e\n\u003cli\u003eAuto power off\u003c\/li\u003e\n\u003cli\u003eHold function to freeze current measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eAZ EC Pen Model No. 8362 range explained:\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eFor accuracy at very low EC (0 - 1.99 mS) the AZ EC pen measures in µS (microsiemens) , then (above 1.99 EC) measures in mS (millisiemens):\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv\u003e0 - 1999 µS (microsiemens) = \u003cb\u003e0 - 1.999 mS \u003c\/b\u003e(millisiemens) or\u003cb\u003e \u003c\/b\u003eas we refer to in hydro\u003cb\u003e 0 - 1.99 EC.\u003c\/b\u003e This range is for low-conductivity solutions, like pure or lightly salted water (e.g., drinking or tap water or hydroponics with very low nutrient levels).\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e2.00 - 19.99 mS (millisiemens) or 2 - 19.99 EC: This range is for medium-conductivity solutions, such as irrigation water or nutrient solutions in hydroponics.\u003c\/li\u003e\n\u003cli\u003e20.0 - 160.0 mS or 20 - 160 EC: This range is for high-conductivity solutions, like seawater or heavily fertilised solutions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.whg.net.au\/wp-content\/uploads\/2025\/05\/EC-to-TDS-with-EC-pen.jpg\" alt=\"\"\u003e\u003c\/p\u003e","brand":"WHG - Wholesale Horticultural Group","offers":[{"title":"Default Title","offer_id":50508093391091,"sku":"HH-4920","price":69.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0657\/1599\/4867\/files\/299.png?v=1787200624","url":"https:\/\/www.hydrohub.com.au\/products\/az-waterproof-ec-tds-meter-pen","provider":"Hydro Hub","version":"1.0","type":"link"}