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W/proof pH/EC/TDS/temp meter HI991301 Waterproof HI991301 pH, conductivity, TDS and temperature meter for growers. Easy to calibrate. User adjustable temp and TDS factors. Has an advanced probe. Measures a wide range of conductivity values. Comes with probe and carry case. Note: there is a HI991300 model that has EC from 0 to 3999 microS/cm and higher EC resolution. Same price. AU HI9811-5 versatile pH/EC/TDS/T meter Hanna Instruments HI 9811-5 pH, conductivity, TDS and Temperature meter. Measures a wider range of conductivity values. Has a single probe for all functions. Comes complete with probe. AU HI9812-5 pH/EC/TDS/T meter for water Versatile pH / EC / TDS and Temp meter. Measures pH 0 - 14, EC to 1990 microS/cm, TDS to 1990 ppm and temp from 0 to 60 deg C. Has automatic temperature compensation and 1 point calibration. Comes with HI1285-5 probe. Click link for specifications. AU pH/EC/TDS / Temp meter for growers Hanna Instruments HI 9813-5 waterproof pH, conductivity, TDS and temperature meter for growers. Easy to calibrate with calibration controls and has advanced trouble free probe. Good for fertilizer solutions. Comes complete with probe. Click the link for specifications. AU
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