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Grow Lights Grow Systems, Parts & Pumps Plant Food Growing Containers / Media pH/TDS Testing Meters - pH Meters - TDS / PPM Meters - Combo Meters - Meters for Soil - Other Meters/Accessories - Calibration Solutions - pH Test Kits - Thermometers & Hygrometers - Measuring Cups / Devices Climate Control Propagation Supplies Pest & Disease Control Garden Tools Books & Magazines Sprout Seeds & Supplies Clothing Brew Supplies 
 FloraBloom Gallon $30.95 $27.86 Save: 10% off FloraBloom Gallon $30.95 $27.86 Save: 10% off FloraBloom 2.5 Gallon $68.95 $62.06 Save: 10% off 
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 TDS / PPM Meters Milwaukee Inst. TDS Tester T75Milwaukee Sharp T75 Waterproof TDS Meter These simple and easy-to-use testers are designed for all applications. It's IP67 Waterproof casing and... $77.95 $70.16 Save: 10% off  Milwaukee Inst. TDS Tester T76Milwaukee Sharp T76 Waterproof TDS Meter These simple and easy-to-use testers are designed for all applications. It's IP67 Waterproof casing and... $77.95 $70.16 Save: 10% off  Milwaukee Instruments TDS Monitor SMS410The Milwaukee Continuous TDS monitor (model SMS410), has a range of: 0-1990 ppm with accuracy of 2% full scale and with 1 point manual calibration... $116.95 $105.26 Save: 10% off  Oakton Eco Testr TDS low MeterOakton‘s Waterproof EcoTestr TDS Low is a convenient TDS meter that doesn’t let dirt or moisture keep it from delivering accurate readings. It... $81.95 $73.76 Save: 10% off  Hanna Primo TDS TesterThe Primo TDS tester provides a fast and dependable way to measure the Total Dissolved Solids in your water samples. It is ideally suited for the... $46.95 $42.26 Save: 10% off  Hanna DiST 5 TDS Meter HI98311The original DiST (Dissolved Solids Tester) was first introduced in 1986 by HANNA®. Since then, Conductivity and Total Dissolved Solids measurements... $127.95 $115.16 Save: 10% off  Hanna GroCheck TDS MonitorThese state-of-the-art meters have been engineered with a host of features suited to the aggressive environments commonly found in agricultural... $105.95 $95.36 Save: 10% off  EC-Shake Nutrient MeterThis revolutionary EC meter is powered by a magnet instead of a battery! A gentle shaking action generates the energy to power this simple, yet... $102.95 $92.66 Save: 10% off  Truncheon Original TDS MeterWith its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LED's and no on/off buttons to worry... $134.95 $121.46 Save: 10% off |
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