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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 nutientBest Value GIDIGI 
GIDIGI Digital Pool Salt Tester & pH Meter Water Quality Tester with Color Screen for Pool Aquarium Hot Tub Hydroponics GIDIGI Multi-Parameter Water Quality Tester: The ultimate water quality tester for pool owners, aquarium enthusiasts andViaGasaFamido 
ViaGasaFamido 6 in 1 Digital Water Quality Tester for COD and TDS, Multi-Parameter Meter with Backlit Display for Home A [Multi-Parameter Testing]Tests COD, TDS, conductivity, and temperature to ensure water quality in your home and aquariumSpacnana Spacnana Water Quality Tester, Multi-Parameter Digital EC Meter, Measures TDS, COD, UV275 for Drinking Water and Hydropo [Multi-Parameter Testing] Measures TDS, COD, UV275, Conductivity, and Temperature for comprehensive water quality assessQUMOX 
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)Generic 
Automotive -Acid Battery Tester with CCA Test Built-in Meter Accurate Multi-Parameter for Auto Batteries includesGAIN EXPRESS 
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CJectse Jectse Light Spectrum Meter, Handheld Spectrometer with Illuminance Curve Display for Measuring Color Temperature, PPFD, [Multi Parameter Measurement] The handheld light spectrum meter is a versatile tool that measures illuminance, spectrum,25% Off KAIWEETS KAIWEETS Multimeter 2000 Counts Digital Multimeter with DC AC Voltmeter, Ohm Volt Amp Test Meter and Continuity Test Dio Multi-Function: This multimeter can test AC/DC Voltage, DC (not for AC), Resistance, Continuity, Diode Measurement.YYJKIK Turbidity Detector Multi-Parameter Water Quality Environmental Monitoring System Suspended Matter Sensor Turbidity Meter HIGH ACCURACY MEASUREMENTS** = The Turbidity Detector is engineered to provide precise readings of turbidity levels, ensintendvision AC/DC Digital Clamp Meter T-RMS 6000 Counts, Multimeter Voltage Tester Auto-ranging, NCV AC DC Current Voltage Resistanc Multifunctional Clamp Meter with True RMS: Accurate AC/DC voltage, AC/DC current, frequency, duty cycle, diode test, capBolisila Bolisila pH Meter Portable Multi-Parameter Water Quality Analyzer Tank Fish Pond Dissolved Oxygen Meter Aquaculture Test Measures conductivity, pH, and temperature for comprehensive water quality analysis.BFHJGHJ Multi-Parameter Spectral Illuminance Meter Lux Tester Spectrometer Light Spectrum for light measurements 1.Multi-parameter integrated design, capable of testing illuminance, color temperature, flicker, PPFD, UV index, temperaVIOLK Water Quality tester, 6 in 1Professional Aquarium Online PH Meter Monitor,Multi-parameter for test PH/Temp/EC/CF/RH/TDS, Digital pH Meter Apply in water sources, aquarium, hydroponics, laboratory, spas, swimming pools, and other water system15% Off AstroAI AstroAI Digital Multimeter, 6000 Counts TRMS, Auto Ranging and Manual, Measures Current, Voltage, Resistance, Continuity 【Digital Multimeter】 for testing Voltage, Current, Resistance, Continuity, Capacitance, Frequency; Tests Diodes TransistYYJKIK Turbidity Detector Multi-Parameter Water Quality Environmental Monitoring System Suspended Matter Sensor Turbidity Meter HIGH ACCURACY MEASUREMENTS** = The Turbidity Detector is engineered to provide precise readings of turbidity levels, ensDSAFRR Spectrometer Light Spectrum Meter CRI Meter CCT Lux Tester Multi-Parameter Spectral Illuminance Meter Accurate multi-parameter measurements for CRI, CCT, and Lux to ensure optimal lighting conditions.KAIWEETS KAIWEETS Digital Clamp Meter T-RMS 6000 Counts, Multimeter Voltage Tester Auto-ranging, Measures Current Voltage Tempera True-RMS clamp meter: This multimeter can accurately measure AC/DC Current, AC/DC Voltage, Frequency or Duty Cycle, ResiGeneric Air Ion Counter Portable Negative Ion Detector,Multi-Parameter Air Quality Meter with Negative Ion Detector and Alarm, A High-Efficiency Air Ion Detection: This professional air quality monitor features an efficient air ion counter that conv30% Off AstroAI AstroAI Multimeter Tester, TRMS 4000 Counts Volt Meter Auto-Ranging Ohmmeter Digital 1.5v/9v/12v Battery Voltage Tester Wide application - The AstroAI M4K0R Multimeter accurately measures AC/DC voltage to 600V, Current to 10A, Resistance toHYQNG 8 in 1 Water Quality Tester Monitor, WiFi Smart PH Meter Data Logger PH/EC/TDS/Salt/S.G/CF/ORP/Temperature Multiparamete 【 8 in 1 water quality tester】Professional measure pH, EC, TDS（ppm）, ORP, CF, Salinity, S.G., Temp meter , The measuremeHYQNG Professional Water Quality Tester Monitor 8 in 1 WiFi Smart PH Meter Data Logger PH/EC/TDS/Salt/S.G/CF/ORP/Temperature M 【 8 in 1 water testing monitor】Professional measure pH, EC, TDS（ppm）, ORP, CF, Salinity, S.G., Temp meter , The measuremCrescent Crescent MR48MN Lufkin Multi Read Tape Measure, 8 Meter Length x 25 mm Width Durable ABS plastic case provides strong protection15% Off AUTENS AUTENS Digital Lux Light Meter Lumenmeter Lux/FC Meters Luminometer, 2000 Counts 0-200000 Lux/0-20000FC(0.01lux/0.01FC R PROFESSIONAL LIGHT TEST TOOL - Professional high precision light test tool. Determine the proper exposure for a photograBolisila Bolisila pH Meter Portable Multi-Parameter Water Quality Analyzer Tank Fish Pond Dissolved Oxygen Meter Aquaculture Test Measures conductivity, pH, and temperature for comprehensive water quality analysis.YBJULT Multi-Parameter 6 in 1 PH/Temp/CF/RH/TDS/EC Meter Acidity Online Water Quality Tester Humidity RH Detector Conductivity Test KitsUITHQH Multi-Parameter 6 in 1 PH/Temp/CF/RH/TDS/EC Meter Acidity Online Water Quality Tester Humidity RH Detector Conductivity Test KitsLytool Laser Distance Meter 165ft/50m, Lytool Laser Measure Ft/in/M Switching Laser Measurement Tool with 20 Groups Data Memory 【High Accuracy】 It has two built-in bubble levels; Using laser precision technology, the accuracy is up to ±2 mm, and thBosch Bosch Professional Electric Meter GDM 600-15 (True RMS, Inverted LCD, Measures Frequency/Continuity/Resistance/Capacitan TRUE RMS PRECISION: Precise measurements for voltage, current and resistance in different systems.YYJKIK Turbidity Detector Multi-Parameter Water Quality Environmental Monitoring System Suspended Matter Sensor Turbidity Meter HIGH ACCURACY MEASUREMENTS** = The Turbidity Detector is engineered to provide precise readings of turbidity levels, ensYYJKIK Turbidity Detector Multi-Parameter Water Quality Environmental Monitoring System Suspended Matter Sensor Turbidity Meter HIGH ACCURACY MEASUREMENTS** = The Turbidity Detector is engineered to provide precise readings of turbidity levels, ensLSSOAZZVVN LSSOAZZVVN Pool Tools 6 in 1 PH Meter Monitor for Test PH/Temperature/EC/CF/RH/TDS Digital Water Quality Multi-Parameter Widely used to measure the pH / RH / Temperature / Conductivity EC / CF / TDS(PPM) of solution/water.HFUDIGRBBBBGUDROH PH Meter Online Monitor PH EC CF TDS ORP Temperature Six in One Multi-Parameter PH Meter Tester for Drinking Water As (C The PH meter is the first choice for home and laboratory testing of PH value. It is suitable for drinking water, swimminStanley Stanley STHT0-77364 Digital Meter, Multi-Colour Display with large digitsKAIWEETS KAIWEETS 10000 Count Multimeter, True RMS Automatic Range Rechargeable Digital Multimeter, Smart Ammeter Voltage, Curren Auto & Manual Mode: The KM601s digital multimeter features a SMART mode that automatically measures voltage, resistance,Ryanong Ryanong Turbidity Meters, Turbidity Detector Multi-Parameter Water Quality Environmental Monitoring System Suspended Mat HIGH ACCURACY MEASUREMENTS** = The Turbidity Detector is engineered to provide precise readings of turbidity levels, ensRyanong Ryanong Turbidity Meters, Turbidity Detector Multi-Parameter Water Quality Environmental Monitoring System Suspended Mat HIGH ACCURACY MEASUREMENTS** = The Turbidity Detector is engineered to provide precise readings of turbidity levels, ensKAIWEETS KAIWEETS Digital Multimeter TRMS 6000 Counts Ohmmeter Auto-Ranging Fast Accurately Measures Voltage Current Amp Resistan WIDE APPLICATIONS - KAIWEETS digital multimeter features 6000 counts auto-ranging for accurate measurement of AC/DC voltUNI-T UNI-T UT383 Light Meter Lux Meter Lumens Digital Illuminance Meter 0~199,900 Lux (0~18,500 FC) Foot Candles Luxmeter for UNI-T professional digital illuminance meter UT383. Effectively measures light intensity and display results in units ofH HOLDPEAK HOLDPEAK Digital Light Meter, 1-400000Lux Illuminance Meter with Large LCD Screen Handheld Ambient Temperature Measurer, High Accuracy with Wide Measuring Range: Features a broad measuring range of 0.1–400,000 lux (40,000 FC), accurately detMiLESEEY MiLESEEY DT20 Laser Tape Measure 3-in-1, 130FT Laser Distance Meter, 16FT Digital Tape Measure, Regular Tape Measure, Ar DATA SYNC DISPLAY TECHNOLOGY - The DT20 Digital Tape Measure is the world's most productive tape measure delivering fastH HOLDPEAK HoldPeak Light Meter, Digital Lux Meter with 0.1-400,000 Measurement Range and 270º Rotatable Detector, Illuminance Mete Large range with high accuracy: Illuminance meter measures light intensity in a range of 0.1-400,000 lux (0.1-40,000 FC)Akozon PEAKMETER MS5910 Advanced Digital RCD Loop Multimeter Tester This PEAKMETER MS5910 Digital RCD Tester combines state of the art technology in a compact, robust, user friendly and poStylebest Stylebest Auto Shutdown Digital Light Meter Illuminance Tester with LCD Display, Illuminometer Luxmeter for Accurate Lig Wide Test Range: Comes with wide test range of 0.1‑200000lx and 0.01‑20000Fc, this light meter supports auto ranging amoOmabeta Omabeta Multimeter, High Definition Scale, Multiple Measuring Ranges, Non-Slip, Humanized Design with Back Support, Smal Versatile Application for Australian Electronics - This analogue multimeter with high-definition scales and multiple meaBewinner Bewinner 8 in 1 Handheld Digital Multimeter with Altimeter for Climbing Outdoor Navigation Application for mountaineering, camping, mountaineering and other outdoor places.Sitojart Star DT830B Digital Multimeter Tester 2000 Counts with DC AC Voltmeter and Ohm Volt Amp Meter Measures Voltage, Current, Resi DT830B Digital Multimeter Tester 2000 Counts with DC AC Voltmeter and Ohm Volt Amp Meter Measures Voltage, Current, ResiFluke Fluke 101 Basic Digital Multimeter Pocket Portable Meter Equipment Industrial Fluke 101 with TL75 Test LeadGeneric Pen Multimeter,4000-Count Voltmeter Detector - Electric Current Tester, Voltage Detector, Professional Current Meter for Offer Multiple Features: Precision multi-function pen-type multimeter with cutting-edge NCV voltage sensing and advancedUNI-T Uni-T PRO UT191T Universal Meter The UNI-T UNI-T PRO UT191T meter is one of the universal measuring instruments that allow the measurement of basic electInnova INNOVA 3320 Auto-Ranging Digital Multimeter Product Type: Auto AccessoryYDuupxe YDuupxe Digital Multimeter High Accuracy Inductance Capacitance Tester Meter with NCV Function Backlit Screen Display fo [Accurate Measurements] This digital multimeter offers high accuracy, minimal errors, and data for various measurement tSekonic Sekonic L-858D SPEEDMASTER Digital Light Meter - Black/Blue 2.7" colour touch screenBAEXUE YR2050 Handheld Portable High Accuracy 4-Wires Milliohm Meter Wireline t Detecting Low Micro Meter Tester This product is suitable for quick test of wire length, resistivity, and quick judgment of the quality of power cords ofTOPEX TOPEX 60m Digital Distance Meter - Measure Distance/Area/Volume, LCD Backlit, m/ft/in Units, Bubble Levels & Battery Inc The laser light/laser radiation used in this laser unit is Class 2 with maximuum 1mW and 650nm wavelengths.Generic Pen Multimeter, 4000-Count Voltmeter Detector, Current Meter, Continuity Tester, Electrical Tester, Voltage Detector for Multi-purpose Design: Seamlessly and accurately detect live and neutral wires with high-precision NCV voltage sensing anLeaton Leaton Digital Luxmeter/Digital Illuminance Light Meter lux meter with LCD Display(Range: 0.1~200,000 Lux Luxmeter, 0.01 The digital light meter will allow you to measure the lighting in an areaFluke Fluke 101 Basic Digital Multimeter Pocket Portable Meter Equipment Industrial Basic dc accuracy 0.5%ZIPLEVEL ZIPLEVEL PRO-2030B High Precision Altimeter (Basic) 75' Cord with User Guide No line-of-sight and distance error with paper-thin precision over unlimited rangescrenova Crenova Digital Multimeter, TRMS Voltmeter Ammeter Auto Range 6000 Meter Ohmmeter, Voltage Capacity with Large LCD Displ Up to 10 test functions: This automatic motion meter is designed with AC/DC, AC/DC volt, resistance, frequency, capacitaGeneric S11 Intelligent 9999 Counts Multimeter Digital LCD Display Rechargeable Universal Meter AC/DC Voltmeter Ohmmeter Test Re ⚽Multifunctional Multimeter with Wide Test Range: the digital multimeter can measure AC/DC voltage, resistance, capacitaSola SOLA Tape Measure – UNI-MATIC – 3 m / 16 mm – Pocket Tape Measure with Belt Clip – Steel Tape, Yellow Painted with mm Sc Casing: the housing made of impact-resistant ABS plastic is very robust and fits perfectly in the hand. Thanks to the smOimzzr Oimzzr 2.5-inch Digital Handheld 100kHz LCR Meter LCR Multimeter Tester for Inductance tance Resistance Measuring 0.6 Vr ✔️A portable handheld LCR meter for measuring the parameters of inductors, tors, resistors and components.MMOBIEL MMOBIEL Professional Digital Multimeter CAT III 1000V CAT IV 600V - 6000 Count - Test AC/DC, Current, Resistance, Temper