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 | Hanna Grochek Combo Monitor Model HI 991404The Combo HI 991404 meter is designed for continuous, high accuracy pH, EC/TDS and temperature measurements. These microprocessor indicators continuously monitor the three most important nutrient parameters in hydroponics, greenhouses and horticultural...Only $197.56 |
 | Replacement Probe for Hanna Grochek Combo Monitor Model HI 991404The Combo HI 991404 replacement probe.Only $86.44 |
 | Hanna Grochek Water Resistant pH Indicator (HI981401N)HI 981401N has been designed to meet the Grower's need for equipment suited to the aggressive environments found in agricultural and hydroponics applications. The housing is water-resistant and features a molded eye which allows installation right...Only $113.93 |
 | Hanna Grochek Replacement Probe for Water Resistant pH Indicator & Temp. Monitor (HI1286)The gel-filled pH electrode has been specially designed to address the needs of growers. Its design guarantees greater clogging resistance in fertilizer solutions with high concentrations of phosphate, nitrate, etc. InstructionsOnly $56.21 |
 | Hanna Hydroponics pH TesterHI 99104 is an ideal pocket tester designed with a 0.01 pH resolution and two point manual calibration through easy to reach trimmers, it immediately displays pH variations to reflect the smallest change in the sample. It has a long and slim stem, ideal...Only $45.13 |
 | Hanna pH/TDS Temperature MonitorDesigned for continuous monitoring of pH, TDS and temperature, the HI 981504 is simple to install and can be placed above the sample to be tested. pH, TDS and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily...Only $235.71 |
 | Hanna GroChek pH/EC/TDS Meter HI9813-6NThe Hanna GroChek HI 9813-6N is a versatile, water resistant multiparameter portable meter specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. It features an extra large LCD that clearly displays...Only $196.19 |
 | Replacement Probe for Hanna Waterproof pH/EC/TDS MeterHI 9813-6N is a versatile, water resistant multiparameter portable meter specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. It features an extra large LCD that clearly displays the parameter being...Only $109.87 |
 | Hanna Combo HI98129 pH/EC/TDS/Temperature Tester with Low Range ECThe HI 98129 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester! No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to-read, dual-level...Only $156.16 |