1 Car Circuit Tester（without battery）. Easy operation : After a simple hook-up of the unit to the vehicle's battery, the automotive technician can conduct a positive or negative battery current to the tip by rocking the power switch forward or backward.
eBay
Professional Digital Multimeter Smart Tester Machine Big Color Screen AC/DC Capacitance Tester Ohm Hz Tools for Electrician
Aliexpress UK
The high sensitivity probe reflects the result on the indicator light, also suitable for narrow areas. Insulated protective rubber tip protects you from electric shock. The alligator clip is convenient for one-handed operation, greatly improving your work efficiency.
eBay
HABOTEST HT123 Digital Multimeter AC DC NCV Smart Multimeter Tester Ohm Voltage Meter Auto Range Profesional Electrician Tester
Aliexpress UK
Based on the V500, the V500 Pro Automotive Circuit Tester is newly upgraded to incorporate the powerful functions of a circuit breaker locator. With the on/off key, you can freely switch between two testing modes, one device to solve all circuit problems!
eBay
Tool Alcoholmeter Wine Content Tester Wine Sugar Meter Hydrometer Tester Wine Concentration Meter Wine Alcohol Meter Wine Meter
Aliexpress UK
GODIAG GT101 Mini Pirt Electric Circuit Tester Vehicles Electrical System Diagnosis/ Fuel Injector Cleaning & Testing/ Current Detection. GODIAG GT101 Mini Pirt Electric Circuit Tester is a multi-use circuit-tester with the diagnostic power from the car battery or the external battery.
eBay
90-1000V Non-Contact Inductance Tester Voltage Indicator High Precision Breakpoint Zero Fire Wire Detector Alarm Tester Pen
Aliexpress UK
Automotive 6-24v Auto Probe 12v Power Circuit Electrical Tester New -Sealey PP1. Carry out the following tests on systems from 6V up to 24V quickly and efficiently Tests continuity in: - Switches - Diodes and Fuses - Relays - Wiring harnesses.
eBay
Handheld Breathalyzer Police Alcotest Display Digital Alcohol Detector LCD Screen Alcohol Tester Alcohol Breath Tester
Aliexpress UK
Pierce and clamp the cable with the thread, free your hands. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Color:Yellow+Black.
eBay
New 3 IN 1 PH Meter Water Quality Tester PH/TDS/TEMP Digital LCD EZ 9901 Monitor Tester For Pools , Drinking Water ,Aquariums
Aliexpress UK
Take out the fuse and put it in slot of the AE150. (The detection fuse of the tester is 20A/48 V, standard type). Insert the plug of the tester into the vehicle fuse socket. 1Set Car Auto Current Tester.
eBay
Battery Tester Digital Lithium Battery Detector Capacity Tester Display Checkered Analyzer AAA AA Button Cell Test ANENG BT138
Aliexpress UK
VDIAGTOOL V200： VDIAGTOOL V200 power circuit probe tester is a simple but extremely useful circuit tester with 20ft+20ft extension cable to check whether car circuits or a certain component is energized or not. It supports ✔Tracing Wire ✔AC/DC Voltage Test ✔Diode, Resistance Test ✔Polarity Test ✔Continuity,Ground,Signal Circuit Test ✔Activate Components ✔Relay,Fuse,Trailer Light Test ✔Locate Short Circuits ✔Circuit Breaker Protection on all electrical systems of 12-24V vehicles.
eBay
Valve vacuum tester Valve vacuum leak detector Valve flatness tester Cylinder head leak detector
Aliexpress UK