GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester – HI98131$443.16 Original price was: $443.16.$376.68Current price is: $376.68.Add to Cart
GroLine® Low and High Range Salinity Tester – HI98325$190.89 Original price was: $190.89.$162.26Current price is: $162.26.Add to Cart
GroLine Hydroponics pH Tester with 0.01 Resolution – HI98115$113.63 Original price was: $113.63.$96.58Current price is: $96.58.Add to Cart
GroLine Waterproof EC/TDS Tester – HI98318$165.90 Original price was: $165.90.$141.02Current price is: $141.02.Add to Cart
Soil pH Tester GroLine – HI981030$272.71 Original price was: $272.71.$231.80Current price is: $231.80.Add to Cart
HI9810302 HALO2 pH Meter for Soil$293.16 Original price was: $293.16.$249.18Current price is: $249.18.Add to Cart
GroLine Waterproof pH Tester with 0.01 Resolution – HI98118$165.90 Original price was: $165.90.$99.54Current price is: $99.54.Add to Cart
pH/EC/TDS/Temperature meter with CAL Check and Probe – HI9813-61$468.16 Original price was: $468.16.$397.94Current price is: $397.94.Add to Cart
Direct Soil Measurement pH Portable Meter – HI99121$1,113.57 Original price was: $1,113.57.$890.86Current price is: $890.86.Add to Cart
Waterproof Portable Combo pH, Conductivity, TDS Tester (High Range) – HI98130$397.71 Original price was: $397.71.$338.05Current price is: $338.05.Add to Cart
opdo Waterproof Optical Dissolved Oxygen Meter with Probe- HI98198$3,988.41 Original price was: $3,988.41.$3,390.16Current price is: $3,390.16.Add to Cart
Multiparameter photometer and pH meter for Plants Nutrient analysis – HI83325$1,908.98 Original price was: $1,908.98.$1,622.63Current price is: $1,622.63.Add to Cart
Professional Portable Soil pH Meter – GroLine HI98168$1,636.27 Original price was: $1,636.27.$1,390.83Current price is: $1,390.83.Add to Cart
pH/EC/TDS/Temperature meter with with HI1285-51 electrode – HI9813-51$468.16 Original price was: $468.16.$397.94Current price is: $397.94.Add to Cart
Waterproof Multiparameter pH, ORP, EC, TDS, Salinity, DO, Pressure, Temperature – HI98194$3,295.27 Original price was: $3,295.27.$2,800.97Current price is: $2,800.97.Add to Cart
GroLine Portable Hydroponics Waterproof pH, EC, TDS, Temperature Meter – HI9814$543.15 Original price was: $543.15.$461.67Current price is: $461.67.Add to Cart
GroLine Monitor for Hydroponic Nutrients – HI981421-Threaded probe for insertion mounting$1,090.85 Original price was: $1,090.85.$927.22Current price is: $927.22.Add to Cart
GroLine Monitor for Hydroponic Nutrients – HI981420-Standard probe with no threads$818.14 Original price was: $818.14.$695.42Current price is: $695.42.Add to Cart
GroLine pH Dosing System – HI981412$32.73 – $1,149.37Price range: $32.73 through $1,149.37Select Options
Groline Nutrient Dosing System – HI981413$695.42 – $1,149.37Price range: $695.42 through $1,149.37Select Options
Backpack Lab Soil Quality Educational Test Kit – HI3896BP$1,056.76 Original price was: $1,056.76.$898.25Current price is: $898.25.Add to Cart
NPK Soil Chemical Test Kit (25 tests each) – HI3896$170.45 Original price was: $170.45.$144.88Current price is: $144.88.Add to Cart
Suction Lysimeter for Root Level Soil Monitoring – HI83900$61.81 – $226.01Price range: $61.81 through $226.01Select Options
NPK Soil Chemical Test Kit Replacement Reagents (25 tests each) – HI3896-025$120.45 Original price was: $120.45.$102.38Current price is: $102.38.Add to Cart
GroLine General Purpose Cleaning Solution (230 mL) – HI7061-023$31.81 Original price was: $31.81.$27.04Current price is: $27.04.Add to Cart
GroLine 1413µS/cm Conductivity Standard with Certificate (230 mL bottle) – HI7031-023$31.81 Original price was: $31.81.$27.04Current price is: $27.04.Add to Cart
GroLine Quick Cal pH/EC/TDS Calibration Solution (120 mL) – HI5036-012$19.32 Original price was: $19.32.$16.42Current price is: $16.42.Add to Cart
GroLine Storage Solution Sachets, 20 mL (25 pcs.) – HI70300G$72.72 Original price was: $72.72.$61.81Current price is: $61.81.Add to Cart
GroLine Quick Cal pH/EC/TDS Calibration Solution (230 mL) – HI5036-023$36.37 Original price was: $36.37.$30.91Current price is: $30.91.Add to Cart
GroLine 5000 uS/cm Conductivity Standard Sachets, (25 x 20 mL) – HI70039G$72.72 Original price was: $72.72.$61.81Current price is: $61.81.Add to Cart
GroLine pH 7.01 Calibration Buffer (500 ml) – HI7007-050$36.37 Original price was: $36.37.$30.91Current price is: $30.91.Add to Cart
GroLine 1413µS/cm Conductivity Standard with Certificate (120 mL bottle) – HI7031-012$17.05 Original price was: $17.05.$14.49Current price is: $14.49.Add to Cart
GroLine 1413 uS/cm Conductivity Standard Sachets, (25 x 20 mL) – HI70031G$72.72 Original price was: $72.72.$61.81Current price is: $61.81.Add to Cart
GroLine 5, 000µS/cm Conductivity Standard with Certificate (120 mL bottle) – HI7039-012$17.05 Original price was: $17.05.$14.49Current price is: $14.49.Add to Cart
GroLine pH 4.01 Calibration Buffer (500 mL) – HI7004-050$36.37 Original price was: $36.37.$30.91Current price is: $30.91.Add to Cart
GroLine pH 4.01 Calibration Buffer (230 mL) – HI7004-023$31.81 Original price was: $31.81.$27.04Current price is: $27.04.Add to Cart
GroLine Electrode Storage Solution (120 mL) – HI70300-012$17.05 Original price was: $17.05.$14.49Current price is: $14.49.Add to Cart
GroLine General Purpose Cleaning Solution (500 mL) HI7061-050$36.37 Original price was: $36.37.$30.91Current price is: $30.91.Add to Cart
GroLine Electrode Storage Solution (500 mL) – HI70300-050$36.37 Original price was: $36.37.$30.91Current price is: $30.91.Add to Cart
GroLine Electrode Storage Solution (230 mL) – HI70300-023$31.81 Original price was: $31.81.$27.04Current price is: $27.04.Add to Cart
GroLine pH 7.01 Calibration Buffer (230 mL) – HI7007-023$31.81 Original price was: $31.81.$27.04Current price is: $27.04.Add to Cart
GroLine General Purpose Cleaning Solution Sachets, 20 mL (25 pcs) – HI70061G$72.72 Original price was: $72.72.$61.81Current price is: $61.81.Add to Cart
GroLine 5, 000µS/cm Conductivity Standard with Certificate (230 mL bottle) – HI7039-023$31.81 Original price was: $31.81.$27.04Current price is: $27.04.Add to Cart
GroLine Quick Calibration Solution for GroLine pH and EC Meters (500 ml) – HI5036-050$36.37 Original price was: $36.37.$30.91Current price is: $30.91.Add to Cart
HI9814 GroLine pH Electrode for Direct Soil and Soiless Media – HI12943$438.61 Original price was: $438.61.$372.82Current price is: $372.82.Add to Cart
Spare Checker pH Electrode – HI1271$28.41 Original price was: $28.41.$24.16Current price is: $24.16.Add to Cart
pH/EC/TDS Multiparameter Probe with CAL Check – HI1285-6$306.80 Original price was: $306.80.$260.78Current price is: $260.78.Add to Cart
pH/EC/TDS/Temperature probe with a DIN connector – HI1285-8$343.17 Original price was: $343.17.$291.69Current price is: $291.69.Add to Cart
HALO® Bluetooth® Wireless Soil pH Electrode – HI12922$602.24 Original price was: $602.24.$511.91Current price is: $511.91.Add to Cart
Spare pH Electrode for Testers – HI73127$150.00 Original price was: $150.00.$127.50Current price is: $127.50.Add to Cart
GroLine pH/EC/TDS Multiparameter Probe (Inline) – HI1285-9$624.97 Original price was: $624.97.$531.22Current price is: $531.22.Add to Cart
pH/EC/TDS Multiparameter Probe – HI1285-5$306.80 Original price was: $306.80.$260.78Current price is: $260.78.Add to Cart
pH/EC/TDS Multiparameter Probe for use with HI9814 – HI1285-7$306.80 Original price was: $306.80.$260.78Current price is: $260.78.Add to Cart