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Best Choice GIDIGI 
GIDIGI Digital pH Meter pH TDS EC Meter for Hydroponics pH and PPM Meter with Color Screen Multi-Parameter Display 0.01 Accurate pH test pen: GIDIGI pH meter guides you with precision, pH seemingly simple valwe dictates the dance of nutientJectse 
Jectse BT Water Quality Monitor, Digital Water Tester for Aquaculture Swimming Pool, Industrial Wastewater Tester Meter [EFFICIENT MULTI-PARAMETER TESTING] Save time with simultaneous testing of 9 water quality parameters for comprehensive
Multiparameter pH/ORP/EC/DO/Pressure/Temp Meter ORP Range: +/- 2000.0 mV. - ORP Resolution: 0.1 mV. - ORP Accuracy: +/- 1.0 mV. - EC Range: 0 to 9999 uS/cm; 0.000 to 20QUMOX 
QUMOX 6-in-1 Soil Tester Meter with Rotatable Screen – Measures pH, Moisture, Fertility, Temperature, Sunlight, Air Humi 6-in-1 Comprehensive Measurement - Instantly test soil pH, moisture, fertility (EC), temperature (°C/°F), sunlight (LUX)
6IN1 Wireless Multiparameter Water Quality Tester PH EC TDS SALT S.G Test Meter Features: 1. 6 in 1 water quality tester. TDS: 1ppm (＜1000ppm), 10ppm (＞1000ppm), 0.1ppt. EC: 0-10000 μ S/cm, 0-199.0ms/Best Value Fluke 
FLUKE (Fluke) pocket-sized, multi-meter 101 Basic dc accuracy 0.5%Marhynchus 
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StrDpofirs Dpofirs Multiparameter Water Quality Meter BT for Water Quality Monitoring Aquaculture Swimming Pool [COMPREHENSIVE WATER TESTING] Combines 9 essential parameters for thorough water quality assessment in one convenient toHoriba U-52G Multiparameter Water Quality Meter The 2022 Horiba U-52G Multiparameter Water Quality Meter is a top-of-the-line instrument designed for precise water qualRAYWE RAYWE Professional 3 in 1 pH/ORP/Temp Meter Water Detector Multi-Parameter Digital LCD Tri-Meter Multi-Function Water Qu 🔔[Widely used to measure the pH/Temperature/ORP (Oxidation Reduction Potential) of water.TEKCOPLUS TEKCOPLUS 6-in-1 Water Quality Tester, Waterproof Digital Pen Type Multiparameter Water Tester Combo Pen with pH/ORP/EC/ 6-IN-1 WATER QUALITY TESTER : Experience comprehensive water quality analysis with our smart pen-style tester, capable o6 in 1 PH/EC/CF/TDS/ORP/Temp Meter Multiparameter Water Quality Tester Monitor TDS: 10 ~ 19990ppm. TDS: 10 ppm. CE, CF, TDS: ± 2% FS. CE: 0.00 to 19.99EC. CF: 0.0 to 199CF. PH: 0.00 ~ 14.00 PH. CE: 0Pomya Pomya BT Water Quality Monitor for Aquaculture and Pool, Multiparameter Water Quality Meter with Auto Energy-Saving Desi [ALL-IN-ONE WATER QUALITY MONITOR] Test 9 key parameters simultaneously: pH, TDS, CL, S.G, and more. Save time with accuMultiparameter pH/ORP/EC/DO/Pressure/Temp Meter ORP Range: +/- 2000.0 mV. - ORP Resolution: 0.1 mV. - ORP Accuracy: +/- 1.0 mV. - EC Range: 0 to 9999 uS/cm; 0.000 to 20Atwynd Professional Illuminometer High Precision, Lux-Meter Luxmeter CCT CRI Luxometer Light Meter, Digital Multi-Parameter Spe 【VERSATILE MULTI-PARAMETER MEASUREMENT】The light meter simultaneously measures illuminance, color temperature, flicker f6 in 1 PH/EC/CF/TDS/ORP/Temp Meter Tester Multiparameter Water Quality Monitor TDS: 10 ~ 19990ppm. TDS: 10 ppm. CE, CF, TDS: ± 2% FS. CE: 0.00 to 19.99EC. CF: 0.0 to 199CF. CE: 0.01EC. PH: 0.00 ~ 14.QUTBAG 8 in 1 Water Quality Tester, Multi-Function Water Quality Monitor S.G PH EC Salt ORP TDS CF Temp with Digital Display fo 【8 in 1 Water Tster】The Water quality analyzer allows you to real time monitor the PH/EC/TDS/SALT/S.G/CF/ORP/Temp via yo6 in 1 PH/EC/CF/TDS/ORP/Temp Meter Multiparameter Water Quality Tester Monitor TDS: 10 ~ 19990ppm. TDS: 10 ppm. CE, CF, TDS: ± 2% FS. CE: 0.00 to 19.99EC. CF: 0.0 to 199CF. CE: 0.01EC. 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