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5000μS/cm Calibration Solution Conductivity Standard Buffer Solution for Truncheon Salinity Meter 4 Bottles of 50Ml
SAR 68
pH Meter for Water Hydroponics Supplies - pH Up and Down Tester Digital PPM Meter EC Meter Combo for Home Growers – Accurate pH Tester TDS EC Reader for Hydroponics
SAR 136
-14%
pH EC PPM Continuous Monitor for Hydroponic Gardening TDS pH Meter for Home Growers Continuously Monitor EC PPM CF ORP Temp Humidity for Indoor Hydroponic Systems DWC Setup Aeroponic Gardening
SAR 313
Smart Dissolved Oxygen Meter Kit with Spare Components Electronic Portable DO Tester with Reinforced Polarographic Probe for Aquaculture Fish Tank Wastewater Treatment
SAR 381
1413μS/cm Calibration Solution Conductivity Standard Buffer Solution for EC Tester Hydroponics Meter 4 Bottles of 50mL
SAR 68
-8%
Pool Salt pH Tester Upgrade pH and ORP Meter Accurate Consistent Pool Water for pH, Salinity, ORP, TDS, EC, Temp Tester pH PPM and EC Tester for Hydroponics, Aquariums, Pool, Spa
SAR 144
Digital Conductivity Tester (EC, ppm 500, ppm700, CF) PPM and EC Meter Truncheon Nutrient Meter with Light Indicator for Hydroponics Gardening, Hydroponics Growing Tent and Reservoir
SAR 173
Hydrogen Water Tester pH Meter 6 in 1 pH H2 ORP TDS EC Temp Tester Dissolved Hydrogen Tester for Hydrogen Water Bottle pH and ORP Meter for Household Drinking Water Hydroponics Pool
SAR 152
UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic Growing Tent Indoor Plant Grow
SAR 125
UIUZMAR pH Tester for Food Digital pH Meter for Sourdough Starter and Dough Spear Sensor Food pH Kit Works for Fermented Sausages Cheese Sushi Rice Canned Jam Soapmaking and Other Solid Semi-Solid
SAR 193
Smart Pool Monitor, Floating Salt and pH Meter 5 in 1 pH Salinity TDS EC Temp Meter for Saltwater Pool Hot Tub Spa Solar Charged Floating Salt Monitor
SAR 157
pH Meter for Hydroponics EC pH Monitor pH ppm Tester for hydroponics System Simultaneous Measurement of pH EC TDS Temperature for DWC Setup Hydro Reservoir Tank, Aeroponic Garden
SAR 136
Soil pH Meter Soil Moisture Meter 8 in 1 Fertility Salt Moisture pH EC Light Humidity Temp Accurate Soil pH Test Kit for Garden and Hydroponics
SAR 157
UIUZAMR pH Meter for Hydroponics PPM EC Meter for Water Hydroponics Simultaneously Display Tester for Plant Nutrients pH Conductivity Meter for Reservoir Tank Hydroponic Water System
SAR 126
pH 7.00 and pH 4.00 Calibration Fluid, 500ml Tester pH 7.00/4.00 Buffer Solution Each, pH Meter Calibration Solution with Container (30ml*2) for pH Meter, pH Tester, pH Probe, pH Electrode
SAR 105
UIUZMAR Water pH Meter Digital pH Tester with pH Test Strips Color Display for Aquarium, Hydroponics, Home Brew, Measure pH Value of Swimming Pool, Drinking Water, Pond, Spa, Hot Tub, Kombucha
SAR 73
