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Ready. Set. Test.

Hurry! Grab top-notch testing equipment at a fantastic value

Everyday Essentials under $50

Sulfate (Low and High Range) Test Kit Replacement Reagents (100 tests)

HI38001-10 Sulfate (Low and High Range) Test Kit Replacement Reagents (100 tests) $39.99

Chromium Test Kit Replacement Reagents (100 tests)

HI3846-100 Chromium Test Kit Replacement Reagents (100 tests) $32.99

pH 6.86 Calibration Buffer (25 x 20 mL) Sachets

HI70006C pH 6.86 Calibration Buffer (25 x 20 mL) Sachets $44.99

Free Chlorine Liquid Reagents (300 tests)

HI93701-F Free Chlorine Liquid Reagents (300 tests) $39.99

GroLine pH 4.01 Calibration Buffer (230 mL)

HI7004-023 GroLine pH 4.01 Calibration Buffer (230 mL) $19.99

GroLine pH 7.01 Calibration Buffer (230 mL)

HI7007-023 GroLine pH 7.01 Calibration Buffer (230 mL) $19.99

Quick Calibration Solution for GroLine pH and EC Meters (25 x 20 mL sachets)

HI50036P Quick Calibration Solution for GroLine pH and EC Meters (25 x 20 mL sachets) $44.99

Quick Calibration Solution for GroLine pH and EC Meters (230 ml)

HI5036-023 Quick Calibration Solution for GroLine pH and EC Meters (230 ml) $19.99

pH Electrode Storage Cap with Compression Fitting (5 pcs)

HI740200 pH Electrode Storage Cap with Compression Fitting (5 pcs) $14.99

GroLine pH 10.01 Calibration Buffer (500 mL)

HI7010-050 GroLine pH 10.01 Calibration Buffer (500 mL) $24.99

Must-Haves Under $150

T-Shaped Celsius Thermometer (125mm)

HI145-00 T-Shaped Celsius Thermometer (125mm) $64.99

Waterproof Thermologger

HI148 Waterproof Thermologger $94.99

Swimming Pool Chemical Test Kit

HI3887 Swimming Pool Chemical Test Kit $54.99

GroLine Hydroponics pH Tester

HI98115 GroLine Hydroponics pH Tester $59.99
$70.00

Freshwater Low Range Ammonia Colorimeter - Checker® HC

HI700 Freshwater Low Range Ammonia Colorimeter - Checker® HC $67.99

High Range Manganese Colorimeter Checker® HC

HI709 High Range Manganese Colorimeter Checker® HC $67.99
$75.00

Ultra High Range Total Chlorine Colorimeter Checker® HC

HI771 Ultra High Range Total Chlorine Colorimeter Checker® HC $67.99
$75.00

Iron Colorimeter - Checker® HC

HI721 Iron Colorimeter - Checker® HC $67.99

High Range Ammonia Colorimeter - Checker® HC

HI733 High Range Ammonia Colorimeter - Checker® HC $67.99
$75.00

Color of Water Colorimeter - Checker® HC

HI727 Color of Water Colorimeter - Checker® HC $67.99
$75.00

Top Picks Under $300

Infrared Thermometer for the Food Industry

HI99551 Infrared Thermometer for the Food Industry $162.00

Infrared and Contact Thermometer for the Food Industry

HI99556 Infrared and Contact Thermometer for the Food Industry $208.00

GroLine Waterproof Portable pH/EC/TDS Meter

HI9814 GroLine Waterproof Portable pH/EC/TDS Meter $299.99
$324.95

GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester

HI98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester $214.99
$259.95

Most Popular Under $500

GroLine pH Dosing System

HI981412 GroLine pH Dosing System $499.99

GroLine Nutrient Dosing System

HI981413 GroLine Nutrient Dosing System $499.99

Marine Monitor pH/Salinity/Temperature

HI981520-01 Marine Monitor pH/Salinity/Temperature $299.99

GroLine Waterproof Portable pH/EC/TDS/Temperature Hydroponics Meter Kit

HI9814K GroLine Waterproof Portable pH/EC/TDS/Temperature Hydroponics Meter Kit $459.99
$491.00

GroLine Monitor for Hydroponic Nutrients with Inline Probe

HI981421-01 GroLine Monitor for Hydroponic Nutrients with Inline Probe $499.99
$585.00

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