{"product_id":"hanna-hi9811-51-portable-ph-ec-tds-temperature-meter","title":"Hanna HI9811-51 Portable pH\/EC\/TDS\/Temperature Meter","description":"\u003cp\u003eThe Hanna Instruments HI9811-51 is a portable multiparameter meter for measuring pH, electrical conductivity (EC), total dissolved solids (TDS), and temperature. Designed for agriculture, greenhouse and hydroponic applications, it supports routine water-quality and nutrient-solution checks using a single combination probe.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFour measurement parameters in one handheld instrument, without changing probes.\u003c\/li\u003e\n\u003cli\u003eLarge LCD with dedicated measurement-mode keys, battery indicator and on-screen tutorial messages.\u003c\/li\u003e\n\u003cli\u003eManual one-point calibration with separate pH and EC\/TDS adjustment controls.\u003c\/li\u003e\n\u003cli\u003eAutomatic temperature compensation for EC and TDS measurements.\u003c\/li\u003e\n\u003cli\u003eHI1285-51 multiparameter probe with built-in temperature sensor and 1 m cable.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eHI9811-51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasured parameters\u003c\/th\u003e\n\u003ctd\u003epH, electrical conductivity (EC), total dissolved solids (TDS), temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003epH range\u003c\/th\u003e\n\u003ctd\u003e0.0–14.0 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003epH resolution \/ accuracy\u003c\/th\u003e\n\u003ctd\u003e0.1 pH \/ ±0.1 pH at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEC range\u003c\/th\u003e\n\u003ctd\u003e0–6000 µS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEC resolution \/ accuracy\u003c\/th\u003e\n\u003ctd\u003e10 µS\/cm \/ ±2% full scale at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTDS range\u003c\/th\u003e\n\u003ctd\u003e0–3000 ppm (mg\/L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTDS resolution \/ accuracy\u003c\/th\u003e\n\u003ctd\u003e10 ppm (mg\/L) \/ ±2% full scale at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTDS conversion factor\u003c\/th\u003e\n\u003ctd\u003e0.5 ppm (mg\/L) per 1 µS\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature range\u003c\/th\u003e\n\u003ctd\u003e0.0–70.0°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature resolution \/ accuracy\u003c\/th\u003e\n\u003ctd\u003e0.1°C \/ ±0.5°C at 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCalibration\u003c\/th\u003e\n\u003ctd\u003eManual, single-point pH offset and EC\/TDS slope adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEC\/TDS temperature compensation\u003c\/th\u003e\n\u003ctd\u003eAutomatic, 0–70°C; fixed coefficient 2%\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProbe\u003c\/th\u003e\n\u003ctd\u003eHI1285-51 polypropylene-body, pre-amplified multiparameter probe with internal temperature sensor, 8-pin DIN connector and 1 m cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eOne 9V battery; approximately 450 hours continuous use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating environment\u003c\/th\u003e\n\u003ctd\u003e0–50°C; up to 100% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeter dimensions\u003c\/th\u003e\n\u003ctd\u003e145 × 80 × 36 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeter weight\u003c\/th\u003e\n\u003ctd\u003e230 g (instrument only; not shipping weight)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eCalibration and Care\u003c\/h2\u003e\u003cp\u003eCalibrate pH with pH 7.01 buffer. EC\/TDS calibration uses 1413 µS\/cm conductivity standard or 1382 ppm TDS standard as appropriate. Clean and maintain the electrode according to the instrument instructions, and use fresh calibration solutions for reliable measurements.\u003c\/p\u003e\u003ch2\u003eManufacturer-Listed Standard Package\u003c\/h2\u003e\u003cp\u003eMeter, HI1285-51 multiparameter probe, HI70007 pH 7.01 calibration solution sachet, HI70032 1382 ppm TDS calibration solution sachet, HI70031 1413 µS\/cm conductivity calibration solution sachet, two HI700661 electrode-cleaning solution sachets, one 9V battery, instructions and rugged carrying case. Package contents should be checked against the supplied box.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":48352651116716,"sku":"HI9811-51","price":98500.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/5400\/0812\/files\/HannaHI981151800x800.jpg?v=1794303563","url":"https:\/\/labstore.pk\/products\/hanna-hi9811-51-portable-ph-ec-tds-temperature-meter","provider":"Labstore.pk","version":"1.0","type":"link"}