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The HI99121 is the perfect portable pH meter for soil testing. With the HI99121 and HI1292D direct s..
GroLine Waterproof EC/TDS Tester Features at-a-glance :WaterproofFast Automatic Temperature Com..
GroLine Waterproof Hydroponic pH TesterFeatures at-a-glance :Built in temperature sensor for Automat..
GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temp Tester Features ..
Designed to bring simplicity to pH testing of soil, the HI981030 GroLine Soil pH Tester is designed ..
Soil Test™ Direct Soil EC Tester Features
at a Glance :• One-point
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