{"product_id":"www-supplytent-com-products-hanna-hi98318-groline-waterproof-ec-tds-tester","title":"Hanna HI98318 GroLine® Waterproof EC\/TDS Tester – Digital Conductivity \u0026 PPM Meter","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the GROLINE WATERPROOF EC\/TDS\/TEMPERATURE TESTER, Model HI98318 from Hanna Instruments — the ultimate pocket meter for hydroponic nutrient solutions. Designed for precision, portability, and ease of use, this sleek meter sits just 0.7\" thick and fits comfortably in your hand while delivering lab-grade readings in the field.\u003c\/p\u003e \u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0686\/1497\/9772\/files\/groline_EC_1.png?v=1744051932\"\u003e \u003cp\u003eThe HI98318 features a spacious, high-contrast LCD that simultaneously shows EC or TDS, temperature, and essential status indicators such as calibration, stability, and low battery alerts. With only two buttons — one to power on\/off and another for automatic one-point calibration — you can measure quickly and confidently.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cb\u003eGraphite Sensor\u003c\/b\u003e for reduced polarization effect, ensuring stable and repeatable readings.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eTwo-Button Operation\u003c\/b\u003e for simple, intuitive use.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eQuick Calibration\u003c\/b\u003e via Hanna Quick Cal solution (sold separately) for fast, reliable setup.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eWaterproof design\u003c\/b\u003e for durability in challenging environments.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eCompact, ergonomic form\u003c\/b\u003e — pocket-friendly with a comfortable grip.\u003c\/li\u003e \u003cli\u003e\n\u003cb\u003eMeasurement capabilities\u003c\/b\u003e include EC, TDS (ppm), and temperature for comprehensive nutrient monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cb\u003eKey specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eModel: HI98318\u003c\/li\u003e \u003cli\u003eEC resolution: 1 US cm\u003c\/li\u003e \u003cli\u003eTDS resolution: 1 mg\/L (ppm)\u003c\/li\u003e \u003cli\u003eRange: 0 to 6000 ppm (TDS)\u003c\/li\u003e \u003cli\u003eWaterproof construction for challenging hydroponic environments\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePerfect for hydroponic growers, nutrient auditors, and on-the-go testing, the GROLINE HI98318 delivers quick, accurate readings to optimize nutrient balance and root health. Calibrate with Hanna Quick Cal solutions for best results, and rely on its stability and low maintenance to streamline your workflow.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Supplytent.com","offers":[{"title":"Default Title","offer_id":44661042380988,"sku":"HI98318","price":499.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/1497\/9772\/files\/GroLine_EC_with_quick_cal.png?v=1750586712","url":"https:\/\/supplytent.com\/products\/www-supplytent-com-products-hanna-hi98318-groline-waterproof-ec-tds-tester","provider":"Supplytent.com","version":"1.0","type":"link"}