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**4-in-1 Digital Water Quality Tester – pH, H2, Temperature & ORP Meter for Pools, Aquariums & Hydroponics | Monitor Hydrogen Ion Concentration & Redox Levels** *(Use Cases: Ideal for testing water quality in swimming pools, fish tanks, hydroponic systems, and laboratory applications.)* -45% Off
**4-in-1 Digital Water Quality Tester – pH, H2, Temperature & ORP Meter for Pools, Aquariums & Hydroponics | Monitor Hydrogen Ion Concentration & Redox Levels** *(Use Cases: Ideal for testing water quality in swimming pools, fish tanks, hydroponic systems, and laboratory applications.)*
$130.55 $237.37
JF-XUAN Auto-Ranging Digital Multimeter 2000 Counts with Backlight - AC/DC Voltage Tester, Current, Resistance, Continuity - Portable Multimeter for Home, Car, Electronics Repair & DIY Projects -45% Off
JF-XUAN Auto-Ranging Digital Multimeter 2000 Counts with Backlight - AC/DC Voltage Tester, Current, Resistance, Continuity - Portable Multimeter for Home, Car, Electronics Repair & DIY Projects
$45.85 $83.37
Klein Tools Electrical Tester Bundle - Digital Clamp Meter, Circuit Breaker Finder, Voltage Tester Kit for Electricians | Perfect for Home Wiring, Electrical Repairs & DIY Projects -45% Off
Klein Tools Electrical Tester Bundle - Digital Clamp Meter, Circuit Breaker Finder, Voltage Tester Kit for Electricians | Perfect for Home Wiring, Electrical Repairs & DIY Projects
$67.63 $122.97
KL283S DC Electronic Load Tester - 150V 30A 300W Single Channel with Overcurrent Protection - Ideal for Power Supply Testing, Battery Discharge & Solar Panel Evaluation -45% Off
KL283S DC Electronic Load Tester - 150V 30A 300W Single Channel with Overcurrent Protection - Ideal for Power Supply Testing, Battery Discharge & Solar Panel Evaluation
$112.75 $205
Professional 01 Coating Thickness Gauge - Digital Paint Tester for Manufacturing & Chemical Industry | Accurate Metal, Plastic & Wood Surface Measurement for Quality Control & Inspection -45% Off
Professional 01 Coating Thickness Gauge - Digital Paint Tester for Manufacturing & Chemical Industry | Accurate Metal, Plastic & Wood Surface Measurement for Quality Control & Inspection
$63.22 $114.96
Zetiling Circuit Analyzer - LCD Low Voltage Distribution Line Fault Tester for Sockets AC100-240V, MASTECH MS5908A/MS5908C - Perfect for Electricians, Home Inspectors & DIY Electrical Repairs (#1) -45% Off
Zetiling Circuit Analyzer - LCD Low Voltage Distribution Line Fault Tester for Sockets AC100-240V, MASTECH MS5908A/MS5908C - Perfect for Electricians, Home Inspectors & DIY Electrical Repairs (#1)
$53.32 $96.96
PC-100SLC Valve Spring Seat Pressure Tester - High Precision Automotive Tool (Red) | Perfect for Engine Repair, Performance Testing & DIY Mechanics -45% Off
PC-100SLC Valve Spring Seat Pressure Tester - High Precision Automotive Tool (Red) | Perfect for Engine Repair, Performance Testing & DIY Mechanics
$175.99 $319.99
PeakMeter MS2205 Digital Clamp Multimeter - 3-Phase AC/DC Current Voltage Resistance Tester with Harmonic Power Analysis - Professional Electrical Multimeter Tool for Electricians, HVAC Technicians & Industrial Maintenance -45% Off
PeakMeter MS2205 Digital Clamp Multimeter - 3-Phase AC/DC Current Voltage Resistance Tester with Harmonic Power Analysis - Professional Electrical Multimeter Tool for Electricians, HVAC Technicians & Industrial Maintenance
$110.58 $201.07
S&G Tool Aid 33900 Professional Fuel Injection Pressure Tester Kit - Diagnose & Repair Fuel System Issues for Cars, Trucks & SUVs | Perfect for Mechanics & DIY Auto Enthusiasts -45% Off
S&G Tool Aid 33900 Professional Fuel Injection Pressure Tester Kit - Diagnose & Repair Fuel System Issues for Cars, Trucks & SUVs | Perfect for Mechanics & DIY Auto Enthusiasts
$44.64 $81.17
High Accuracy 0.2% LCR Meter - Handheld Digital Bridge with TFT Display, Capacitance Tester, Portable Inductance Multimeter, Rechargeable Resistance & Transistor Tester ET433 - Perfect for Electronics Repair, Lab Testing & DIY Projects -45% Off
High Accuracy 0.2% LCR Meter - Handheld Digital Bridge with TFT Display, Capacitance Tester, Portable Inductance Multimeter, Rechargeable Resistance & Transistor Tester ET433 - Perfect for Electronics Repair, Lab Testing & DIY Projects
$181.49 $329.99
YK-VR1220H Rechargeable High Precision Battery Tester - 0.001mΩ-200Ω Internal Resistance Meter with 0.0001V±120V Voltage Measurement, MicroUSB Charging | Perfect for Automotive, Solar, and DIY Electronics Testing -45% Off
YK-VR1220H Rechargeable High Precision Battery Tester - 0.001mΩ-200Ω Internal Resistance Meter with 0.0001V±120V Voltage Measurement, MicroUSB Charging | Perfect for Automotive, Solar, and DIY Electronics Testing
$45.64 $82.99
Turbo Boost Leak Tester Kit for Large Frame Shops - 4 -45% Off
Turbo Boost Leak Tester Kit for Large Frame Shops - 4", 5", 5.5", 6" Sizes with 5 ft Extension Air Line & 150 PSI Regulator | Professional Automotive Diagnostic Tool for Turbocharger Performance Testing
$134.75 $245
High Precision Digital Force Gauge - SF-500N Portable Push Pull Tester with LCD Display for Tension, Pressure & Thrust Measurement | Ideal for Industrial Testing, Quality Control & Laboratory Use -45% Off
High Precision Digital Force Gauge - SF-500N Portable Push Pull Tester with LCD Display for Tension, Pressure & Thrust Measurement | Ideal for Industrial Testing, Quality Control & Laboratory Use
$109.99 $199.99
Professional HT118A Digital Multimeter - 1000V Voltage Tester with Transistor, Capacitance, Ohm, Hz & Temperature Measurement - Ideal for Home Electrical Repairs, Automotive Diagnostics & DIY Electronics Projects -45% Off
Professional HT118A Digital Multimeter - 1000V Voltage Tester with Transistor, Capacitance, Ohm, Hz & Temperature Measurement - Ideal for Home Electrical Repairs, Automotive Diagnostics & DIY Electronics Projects
$60.46 $109.93
High Precision Digital PH Meter & Water Quality Tester (0-14PH Range) with Temperature Measurement - Ideal for Drinking Water Testing, Aquariums, Swimming Pools, Hydroponics & Home Brewing -45% Off
High Precision Digital PH Meter & Water Quality Tester (0-14PH Range) with Temperature Measurement - Ideal for Drinking Water Testing, Aquariums, Swimming Pools, Hydroponics & Home Brewing
$52.84 $96.09
Non-Contact Voltage Tester Pen 90-1000V AC - Battery Powered Electrical Detector with LED Light & Audible Alarm - Perfect for Home Electrical Safety Checks, DIY Projects, and Professional Electricians -45% Off
Non-Contact Voltage Tester Pen 90-1000V AC - Battery Powered Electrical Detector with LED Light & Audible Alarm - Perfect for Home Electrical Safety Checks, DIY Projects, and Professional Electricians
$136.95 $249
2KG Standard Roller Adhesion Tester - Manual Adhesive Test Tool for Pressure-Sensitive Tapes | Perfect for Quality Control in Packaging, Labeling & Industrial Applications -45% Off
2KG Standard Roller Adhesion Tester - Manual Adhesive Test Tool for Pressure-Sensitive Tapes | Perfect for Quality Control in Packaging, Labeling & Industrial Applications
$54.99 $99.99
12V/24V Car Battery Tester BT500 - Cranking & Charging System Analyzer for CCA DIN IEC EN JIS - Perfect for Auto Shops & DIY Vehicle Maintenance -45% Off
12V/24V Car Battery Tester BT500 - Cranking & Charging System Analyzer for CCA DIN IEC EN JIS - Perfect for Auto Shops & DIY Vehicle Maintenance
$48.73 $88.6
WNSC Pipeline Plugging Tester - ABS Waterproof Pipe Blockage Detector with Adjustable Sensitivity & Scratch-Resistant Design | Impact-Resistant for Steel, PVC & Iron Pipes | Ideal for Plumbing Maintenance & Drain Inspection -45% Off
WNSC Pipeline Plugging Tester - ABS Waterproof Pipe Blockage Detector with Adjustable Sensitivity & Scratch-Resistant Design | Impact-Resistant for Steel, PVC & Iron Pipes | Ideal for Plumbing Maintenance & Drain Inspection
$56.09 $101.99
Yencoly EC-770 Digital Thickness Gauge | Non-Destructive Coating Thickness Tester for Plastic, Glass, Metal & Ceramic | 3 Probe Modes with Low Battery Indicator | Perfect for Quality Control, Automotive & Industrial Measurements -45% Off
Yencoly EC-770 Digital Thickness Gauge | Non-Destructive Coating Thickness Tester for Plastic, Glass, Metal & Ceramic | 3 Probe Modes with Low Battery Indicator | Perfect for Quality Control, Automotive & Industrial Measurements
$72.06 $131.03
Digital Gauss Meter - Handheld Magnetic Field Tester with Hall Probe (0-2400mT/24000G) - Surface Magnetism Measurement Tool for Industrial, Laboratory & Electronics Repair -45% Off
Digital Gauss Meter - Handheld Magnetic Field Tester with Hall Probe (0-2400mT/24000G) - Surface Magnetism Measurement Tool for Industrial, Laboratory & Electronics Repair
$54.45 $99
High Precision Shooting Speed Tester 30-6500fps - Muzzle Velocity Chronograph with Tripod Stand - 80 Data Sets Memory - for Ballistics, Airsoft & Physics Experiments (Range, Lab & Outdoor Use) -45% Off
High Precision Shooting Speed Tester 30-6500fps - Muzzle Velocity Chronograph with Tripod Stand - 80 Data Sets Memory - for Ballistics, Airsoft & Physics Experiments (Range, Lab & Outdoor Use)
$134.84 $245.17
WDBBY 12-1000V AC Voltage Tester Pen - Non-Contact Electrical Tester, Digital Voltmeter, Outlet Tester & Circuit Breaker Finder (Yellow) - Perfect for Home Electrical Repairs, DIY Projects & Electrician Use -45% Off
WDBBY 12-1000V AC Voltage Tester Pen - Non-Contact Electrical Tester, Digital Voltmeter, Outlet Tester & Circuit Breaker Finder (Yellow) - Perfect for Home Electrical Repairs, DIY Projects & Electrician Use
$72.6 $132
UNI-T UT61E True RMS Digital Multimeter - 1000V AC/DC, 22000 Counts, Voltage, Resistance, Capacitance Tester for Electricians & DIY Projects | Home, Auto, Electronics Repair -45% Off
UNI-T UT61E True RMS Digital Multimeter - 1000V AC/DC, 22000 Counts, Voltage, Resistance, Capacitance Tester for Electricians & DIY Projects | Home, Auto, Electronics Repair
$71.49 $129.99
YUESFZ Digital Water Quality Tester Pen - High Precision 0.01 pH Meter for Drinking Water, Aquariums, Pools & Hydroponics | Portable Water Testing Kit for Home, Lab & Outdoor Use -45% Off
YUESFZ Digital Water Quality Tester Pen - High Precision 0.01 pH Meter for Drinking Water, Aquariums, Pools & Hydroponics | Portable Water Testing Kit for Home, Lab & Outdoor Use
$63.81 $116.03
Professional Geiger Counter Nuclear Radiation Detector - Beta Gamma X-Ray Tester with USB Charging Cable | Marble Design Radioactive Ray Monitor for Home Safety, Industrial Use & Emergency Preparedness -45% Off
Professional Geiger Counter Nuclear Radiation Detector - Beta Gamma X-Ray Tester with USB Charging Cable | Marble Design Radioactive Ray Monitor for Home Safety, Industrial Use & Emergency Preparedness
$45.97 $83.59
**JF-XUAN 3-in-1 Digital Water Quality Tester – PH, ORP, TEMP Meter for Pools, Aquariums & Hydroponics | Multi-Parameter Water Detector for Home & Lab Use** -45% Off
**JF-XUAN 3-in-1 Digital Water Quality Tester – PH, ORP, TEMP Meter for Pools, Aquariums & Hydroponics | Multi-Parameter Water Detector for Home & Lab Use**
$53.38 $97.06
HUIOP 8-Channel 18650 Battery Tester with 2.4 -45% Off
HUIOP 8-Channel 18650 Battery Tester with 2.4" TFT Display - Multi-Mode Capacity Tester for Li-ion/NiMH Batteries | Enhanced Safety & Intuitive Interface | Perfect for DIY Electronics, RC Toys & Power Tool Maintenance
$47.07 $85.59
Power Probe III with Case & Accessories - Fire (PP319FIRE) | Automotive Diagnostic Test Tool | Digital Volt Meter | AC/DC Current Resistance Tester | Circuit Tester for Car Repair & Electrical Troubleshooting -45% Off
Power Probe III with Case & Accessories - Fire (PP319FIRE) | Automotive Diagnostic Test Tool | Digital Volt Meter | AC/DC Current Resistance Tester | Circuit Tester for Car Repair & Electrical Troubleshooting
$98.62 $179.31
XLA Alert Portable Gas Detector - 4 Gas Monitor with LCD Display | Rechargeable Air Quality Tester for CO, O2, H2S & LEL Detection | Sound & Light Alarms | 2-Year Warranty | Ideal for Industrial Safety, Construction Sites & Home Air Quality Monitoring -45% Off
XLA Alert Portable Gas Detector - 4 Gas Monitor with LCD Display | Rechargeable Air Quality Tester for CO, O2, H2S & LEL Detection | Sound & Light Alarms | 2-Year Warranty | Ideal for Industrial Safety, Construction Sites & Home Air Quality Monitoring
$60.49 $109.99
WDBBY UT15C Waterproof Digital Multimeter - AC/DC Voltage Tester (24V~690V) with Phase Rotation Detection, Non-Contact Voltage Detector for Electricians, Home & Industrial Electrical Testing -45% Off
WDBBY UT15C Waterproof Digital Multimeter - AC/DC Voltage Tester (24V~690V) with Phase Rotation Detection, Non-Contact Voltage Detector for Electricians, Home & Industrial Electrical Testing
$123.2 $224
VICTOR 6056E Digital Clamp Meter - True RMS Multimeter with Data Hold, On/Off Alarm, Measures DC/AC Current & Voltage, Resistance, Capacitance, Frequency - Perfect for Electricians, HVAC & Automotive Diagnostics -45% Off
VICTOR 6056E Digital Clamp Meter - True RMS Multimeter with Data Hold, On/Off Alarm, Measures DC/AC Current & Voltage, Resistance, Capacitance, Frequency - Perfect for Electricians, HVAC & Automotive Diagnostics
$50.05 $91
Webster Hardness Tester Gauge for Aluminum Alloy - 0-20HW Measuring Range, 0.4-8mm Thickness, 6mm+ Inner Diameter | Metal Testing, Quality Control, Industrial Use -45% Off
Webster Hardness Tester Gauge for Aluminum Alloy - 0-20HW Measuring Range, 0.4-8mm Thickness, 6mm+ Inner Diameter | Metal Testing, Quality Control, Industrial Use
$189.75 $345
SH-CHEN AR63A Digital Handheld Vibrometer - High Precision Portable Vibration Tester for Motors, Bearings & Machinery - Multifunctional Voltage Tester with LCD Display (Ideal for Industrial Maintenance, Equipment Diagnosis & Quality Control) -45% Off
SH-CHEN AR63A Digital Handheld Vibrometer - High Precision Portable Vibration Tester for Motors, Bearings & Machinery - Multifunctional Voltage Tester with LCD Display (Ideal for Industrial Maintenance, Equipment Diagnosis & Quality Control)
$207.48 $377.25
Small Continuity Tester with Red LED Indicator & Pre-Installed Battery - Perfect for Electrical Circuit Testing, DIY Projects & Home Repairs -45% Off
Small Continuity Tester with Red LED Indicator & Pre-Installed Battery - Perfect for Electrical Circuit Testing, DIY Projects & Home Repairs
$76.45 $139
JJXX-BZ Digital Angle Finder - Dual Axis Inclinometer with 0.02° Resolution, Rechargeable & Magnetic Base - Precision Protractor for Electrical Testing, Construction, Woodworking, and DIY Projects -45% Off
JJXX-BZ Digital Angle Finder - Dual Axis Inclinometer with 0.02° Resolution, Rechargeable & Magnetic Base - Precision Protractor for Electrical Testing, Construction, Woodworking, and DIY Projects
$66.47 $120.87