Continous pH/TDS/temp Monitor

Simultaneous display of pH, TDS and temperature Continuous measurements Measure in C or F Three, backlit displays Set-up is simple. Install the HI 981504 near the sample to be tested, plug the indicator in and immerse the probes. pH... More Details

Item Number: 136670

Soil Conductivity/Salinity Meter w/ Carrying Case

Supplied with two probes Automatic Temperature Compensation BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings HI 993310 is an instrument that has been designed to addr... More Details

Item Number: 136518

Hanna HI 98106 - (Champ) pH Tester with ±0.2 Accuracy

Renewable junction Easy 1 point manual calibration 800 hour battery life Simple to use Economical The Champ revolutionized the pH industry by providing non-technical personnel with a simple, inexpensive solution to accurate pH mea... More Details

Item Number: 131891

Hanna HI 98107 - (pHep) pH Tester with ±0.1 Accuracy

The HI 98107 (pHep), which is the result of over two decades of research and manufacturing experience, is the updated version of our widely popular 96107 (pHep). Today the redesigned pHep series feature a rugged and ergonomically enhanced casing that fits... More Details

Item Number: 131892

Hanna HI 98127 - Waterproof pH Tester with Replaceable Electrode w/ accuracy ±0.1 pH

When HANNA introduced its first version of the pHep (pH electronic paper) in 1986, it immediately revolutionized the standard in pH measurement. pHep's ease-of-use in combination with its affordability made it possible for non-technical and technical pers... More Details

Item Number: 131893

Hanna HI 98128 - Waterproof pH Tester with Replaceable Electrode w/ accuracy ±0.05 pH

When HANNA introduced its first version of the pHep (pH electronic paper) in 1986, it immediately revolutionized the standard in pH measurement. pHep's ease-of-use in combination with its affordability made it possible for non-technical and technical pers... More Details

Item Number: 134429

Hanna HI 98301 - TDS Tester with 0.5 conversion factor, Range up to 1990 ppm

DiST testers are reliable, pocket-sized instruments that will give you quick and accurate readings of conductivity and TDS. This popular line of Dissolved Solids Testers have been redesigned to offer a host of improvements. The casing has been modif... More Details

Item Number: 131902

Hanna HI 98311 - Waterproof (Low Range) EC/TDS/Temperature Tester

The original DiST (Dissolved Solids Tester) was first introduced in 1986 by HANNA. Since then, Conductivity and Total Dissolved Solids measurements have never been easier. DiST's ease-of-use, in combination with its affordability, made it the standard in ... More Details

Item Number: 131903

Hanna HI 98129 - Combo pH/EC/TDS/Temperature Tester with Low Range EC

The 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... More Details

Item Number: 131894

Hanna HI 98130 - Combo pH/EC/TDS/Temperature Tester with High Range EC

The HI 98130 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... More Details

Item Number: 131896

Hanna HI 9811-5N Waterproof pH/EC/TDS/°C Portable Meter

Portable pH/EC/TDS/Temperature Meter low range EC & TDS Water resistant On-screen tutorial messages for calibration Switch parameters at the touch of a button Automatic Temperature Compensation for pH and conductivity Simple calibration; Dials ... More Details

Item Number: 135861

Hanna HI 9813-5N - pH/EC/TDS/C Portable Meter

Portable pH/EC/TDS/Temperature Meter with HI 9813-5 Multiparameter Probe Water resistant On-screen tutorial messages for calibration BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect r... More Details

Item Number: 135281

Hanna HI 9813-6N - pH/EC/TDS/C Portable Meter with Cal Check

Water resistant On-screen tutorial messages for calibration Exclusive CAL CHECK feature; Alerts users of calibration status BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings... More Details

Item Number: 135283

Hanna HI 981408 - pH Tester for Fertigation Solutions

Shock-resistant casing Long probe is ideal for fertilizer solution in tanks and vats 2000 hours of operation on 2 AA batteries Floating Replaceable probe HI 981408 has been specifically designed to address the needs of growers in ... More Details

Item Number: 131899

Hanna HI 981409 - TDS Tester for Fertigation Solutions

TDS Tester for Fertigation Solution Lightweight and it floats! Water resistant Ideal for mixing fertilizer Automatic calibration Automatic Temperature Compensation HI 981409 TDS tester has been specifically designed to address the... More Details

Item Number: 131900

Hanna HI 981410 - EC Tester for Fertigation Solutions

EC Tester for Fertigation Solutions Lightweight and it floats! Water resistant Ideal for mixing fertilizer Automatic calibration Automatic Temperature Compensation HI 981410 EC tester has been specifically designed to address the ... More Details

Item Number: 131901

Hanna HI 981401N - pH Gro'Chek Water Resistant pH Indicator

Gro'Chek Water Resistant pH Indicator Water resistant One or two point calibration Electrode clog resistance The pH indicator HI 981401N has been designed to meet the grower's need for equipment suited to the aggressive environments f... More Details

Item Number: 131897

Hanna HI 983301N - Water-resistant TDS Meter with 0.7 TDS conversion factor

Gro'Chek TDS Meter with 0.7 TDS Conversion Factor Water resistant Low maintenance probes Hang right above the samples Probes designed for horticulture and hydroponics applications This meter has been engineered with a host of featur... More Details

Item Number: 131904

Hanna HI 983302N - Water-resistant EC Meter @ 9.99 mS/cm

Gro'Chek EC Meter with 0.01 mS/cm resolution Water resistant Low maintenance probes Hang right above the samples Probes designed for horticulture and hydroponics applications This meter has been engineered with a host of features su... More Details

Item Number: 131905

Hanna HI 981404N - pH/TDS Indicator for Agriculture with Range up to 1990 ppm (mg/L)

pH & TDS Continuous Indicator Two parameters with a single instrument Advanced electrode technology Simple operation and maintenance Supplied complete and ready to use HI 981404N is ideal for agricultural, horticultural and hydropon... More Details

Item Number: 131898

Hanna HI 981504/7 - pH/TDS/Temperature Monitor

pH/TDS/Temperature Monitor Simultaneous display of pH, TDS and temperature Continuous measurements Measure in C or F Three, backlit displays Set-up is simple. Install the HI 981504 near the sample to be tested, plug the indicator in... More Details

Item Number: 134816

Hanna HI 991404 - Low Range pH/EC/TDS/Temperature Monitors with Backlit Display

Waterproof Adjustable TDS ratio and adjustable Stability indicator and HOLD This indicator continuously monitors the three most crucial nutrient parameters in hydroponic, greenhouse and horticultural applications. At startup,... More Details

Item Number: 131910

Hanna HI 99121N Direct Soil pH Meter

The HI 99121N kit has been designed to address the question of correct and rapid measurement of pH directly in soil. Every item in this kit has been made to facilitate measurements in the field without compromising accuracy. With HI 99121N you can test th... More Details

Item Number: 135732

Hanna BL 981411-0 - pH Mini Controller 12 VDC

Easy to handle Fire retardant casing Selectable overdose protection system Splash resistant cover The BL 981411 pH controller has been designed for easy, affordable installation in tight spaces, ideal for simple and effective proces... More Details

Item Number: 134107

Hanna BL 981411-1 - pH Mini Controller 115/230 VAC

pH Mini Controller Easy to handle Fire retardant casing Selectable overdose protection system Splash resistant cover The BL 981411 pH controller has been designed for easy, affordable installation in tight spaces, ideal for simple a... More Details

Item Number: 134567

Hanna HI 9935-1 pH and TDS Proportional Control for Fertigation

HI 9935 is a 2-in-1 pH and TDS controller engineered for dosage of fertilizer solutions in hydroponics. HI 9935 measures pH from 0 to 14 and TDS from 0 to 1999 ppm. Two separate set points can be user-adjusted from 4 to 7 pH and 900 to 1800 ppm (mg/L... More Details

Item Number: 135423

Conductivity/TDS Probe for Soil Measurement of HI993310

Stainless steel conductivity probe with internal temperature sensor, DIN connector and 1 m (3.3') cable for direct soil measurement. For use with HI993310 only. ... More Details

Item Number: 136524

Hanna HI 73311 Electrode

Spare probe for HI 98311 Spare amperometric graphite probes for EC and TDS testers. ... More Details

Item Number: 136990

Hanna HI 1333B pH Combination Electrode

Spare pH electrode for HI 9815 with ceramic junction, gel-filled, BNC connector, 1 m (3.3') cable , for field applications. pH combination electrode Ultem body double-junction, refillable, cloth junction, gel filled, 1m cable Specifications Ref... More Details

Item Number: 135733

Hanna HI 1285-0 Electrode

Replacement electrode for the Hanna HI9813-0 meter. Reads pH, EC & TDS. Spare multi-pin pH/EC electrode with cloth junction, gel-filled, 7-pole; 2 m (6.6') cable, for greenhouses, hydroponics, environmental monitoring, water treatment, boilers and c... More Details

Item Number: 211009

Hanna HI 1285 Electrode

Replacement electrode for the Hanna HI9813 meter. Note the HI9813 meter is no longer manufactured and has been replaced with HI9813-0 meter. Reads pH, EC & TDS. ... More Details

Item Number: 131913

Grochek Replacement Probe for HI9813-5 & HI9813-5N

Replacement electrode for the GroChek series "-5" models: HI9813-5 & HI9813-5N Reference Single, Ag/AgCl Junction Cloth Plug DIN Electrolyte Gel Max Pressure 0.1 bar Range pH: 0 to 13 / EC T: 20 to 40... More Details

Item Number: 136675

Hanna HI 1285-5N Electrode

Replacement Probe for HI9813-5N, HI9811-5, HI9812-5 Spare multi-pin pH/EC electrode with temperature sensor, cloth junction, gel-filled, 7-pole; 2 m (6.6') cable, for greenhouses, hydroponics, environmental monitoring, water treatment, boilers and cool... More Details

Item Number: 135860

Hanna HI 1285-6 Electrode

Replacement electrode for the Hanna HI9813-6 meter. Reads pH, EC, TDS & Temp. Special Applications Specific Electrodes for Specific Analysis. Spare multi-pin pH electrode for HI 9813 series, with cloth junction, 7-pole; 2 m (6.6') cable, for greenho... More Details

Item Number: 134106

Hanna HI 1286 pH Electrode

Hanna pH Electrode HI 1286 pH with 2 m (6.6') cable for HI 981401N, HI 981404N & HI 981504/7 and others. Spare pH electrode for HI 981401N and HI 981402, with Teflon junction, 2 m (6.6') cable, for general purpose, water treatment and agriculture. ... More Details

Item Number: 131914

Hanna HI 1292D pH Electrode

For Soil pH Measurement pH Combo Electrode Glass Body - Refillable Temp. Sensor Reference Single, Ag/AgCl Junction Ceramic, triple Connector 7-pin DIN Electrolyte KCl 3.5M + AgCl Max Pressure 0.1 bar Range 0 to 12 pH; -5 to 100C (23 to 212F... More Details

Item Number: 131915

Hanna HI 73127 pH Electrode

Spare electrode for HI 98121, HI 98127, HI 98128, HI 98129 and HI 98130 ... More Details

Item Number: 131931

Hanna HI 7632 EC/TDS Electrode

Hanna EC/TDS Electrode HI 7632 Replacement for HI 983301N, HI 983302N, HI 983302, HI 983307 and HI 983308 2-pin probe designed for use with Gro'chek and Pronto series. This is an amperometric probe, provided with built-in temperature sensor for automat... More Details

Item Number: 131932

Hanna HI 1230B pH Electrode

Laboratory combination pH electrode with ceramic junction for field applications. Reference Double, Ag/AgCl Junction Ceramic, single Connector BNC Electrolyte Gel Max Pressure 2 bar Range 0 to 13 pH; 0 to 80C (32 to 176F) Tip Shape Spheric (d... More Details

Item Number: 134427

Hanna HI 1220 EC/TDS Electrode

EC/TDS Probe for HI981409 HI981410 EC/TDS probe with DIN connector. ... More Details

Item Number: 135469

Hanna HI 1293 Electrode

Hanna Electrode HI1293 replacement for HI991404 ... More Details

Item Number: 134795

Hanna Replacement Electrode

Hanna Replacement Electrode for the Hanna Checker pH Tester (HI 98103) ... More Details

Item Number: 136444

Hanna HI 98103 pH Checker 1

Greentrees Comments: This is a cheap pH meter. They may last one year at the most. It's got a 6 month warranty. You have been warned. At the cost of just a few rolls of litmus paper, you can have the industry's best pocket-sized pH tester. The Checker ... More Details

Item Number: 211035

Hanna Primo TDS Tester

TDS Tester with 1 mg/L resolution Direct probe connection Automatic calibration Automatic Temperature Compensation The Primo series of testers provide a fast and dependable way to measure the total dissolved solids or conductivity in ... More Details

Item Number: 134401