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Best Choice Temtop 
Temtop M10 Air Quality Monitor Indoor Air Quality Tester AQI PM2.5 VOCs Formaldehyde Detector for Home Air Testing, US C [4 in 1 Multifunctional Monitor] This smart air quality meter provides accurate monitoring of PM2.5, AQI, HCHO, TVOC. Coaikoolwer 
aikoolwer Digital Display Energy Meter AC 80-270V 100A 35mm DIN Rail Ammeter Voltmeter Electricity Power Meter Accurate Multi-Function Monitoring： Measures voltage, current, power, frequency, and power factor with high precision fo
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 20GIDIGI 
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 nutient
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 Extech 
Extech EC500 Waterproof ExStik II pH/Conductivity Meter Combination flat surface pH electrode with autoranging high accuracy conductivity cellKKnoon 
Water Quality Tester 6 in 1 WiFi Water Quality Monitor Multiparameter Digital PH/Total Solids Dissolved/EC/S.G/Salt/Temp 6 in 1 - Multifunctional water quality tester, real-time monitoring of PH, total dissolved solids, EC, S.G, salinity, waMultiparameter Benchtop Turbidity Meter with 2 to 7 Points Calibration 0-2000NTU • USB communication interface is easy to transfer data to PC. 250(L)×177(W)×96(H)mm. 2 hours after last key pressed. StrJectse 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 comprehensiveHoriba 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 qualWLR Industries WLR Industries HANNA HI9813-6N Waterproof pH/EC/TDS Meter Probe 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. PH: 0.00 ~ 14.00 PH. CE: 0MEIJUN 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.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 20Bluelab Bluelab BLU2300E 716441 Combo Meter for Plant Germination Monitor 3 parameters in water: Conductivity (TDS) level to ensure plants get a balanced feed, pH up and down, and temper6 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.kactoily kactoily Smart Aquarium Water Monitor, Salinity pH ORP TDS EC Temp Multi-Parameter Tester for Freshwater Saltwater Fish 24/7 Real-Time Monitoring & Alerts: Monitor pH, salinity, Temp, TDS and 3 parameters via app. Set custom ranges for each6 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. PH: 0.00 ~ 14.GENERIC Water Test Kit - Professional 4 in 1 Portable Meter, Accurate Multiparameter Analysis Device, Compact Lab Instrument, Re Advanced Sensor Design: Delivers dependable water data with accurate measurement, utilizing a sturdy titanium alloy probYSI ProDSS Water Quality Meter Kit – Brand New Never Used DO pH ORP Conductivity • ProDSS Cable Assembly (with depth/temp). • Original YSI hard carry case. • pH + ORP. • Never used – mint condition. •GENERIC Water Test Kit - Professional 4 in 1 Portable Meter, Accurate Multiparameter Analysis Device, Compact Lab Instrument, Re Advanced Sensor Design: Delivers dependable water data with accurate measurement, utilizing a sturdy titanium alloy probHanna HI98196 Multiparameter pH/EC/DO MULTIPARAMETER WATERPROOF METER (4/2026) Hanna HI98196 Multiparameter pH/EC/DO MULTIPARAMETER WATERPROOF METER (4/2026). TEST WORKS GREAT. 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Effectively measures light intensity and display results in units