here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
About CMTOOL
Professional tools to serve your car and your happiness!
We have been focusing on the research and development of auto maintenance, diagnosis and testing tools, aiming to provide customers with more professional and higher-quality products.
We have an independent production factory, a professional R&D team and multiple engineers with more than 10 years of industry experience, so we can provide customers with professional pre-sales services and satisfactory after-sales solutions.
Professional Tools
Professional Tools
Professional Tools
Professional Tools
Battery Charger
Power Circuit Probe Tester with 4M Test Lead
Wide Application
This automotive test light is suitable for diagnosis of all 6V to 24V automotive electrical systems and works well on cars, trucks, boats, trailers and motorcycles.
Probe Tip
Use the advanced high-sensitivity probe to quickly and accurately detect electrical system problems.
Extension Test Lead
The cable length of the circuit tester is about 4m (13FT), and the extension cable is very helpful for mobile maintenance work.
Auxiliary Ground Clamp
The black clip and auxiliary ground lead are connected directly through the unit. Users can consider it as a long jumper test lead by leaving the right clip disconnected from the battery.
Power Switch
The portable and ergonomic design of the circuit tester is very helpful for you to use in narrow areas.
Two Clamps
The clip with strong bite force is not easy to fall off, providing you with a better experience.
LED Indicator
LED indicator lights and buzzer prompt help you accurately determine the automotive electrical system problems and reduce the time for diagnosis.
Component Activation and Testing
Activate components in/Out of the vehicle's electrical system.
Grounding Test
lt can detect whether the component has a large current flow, and test whether the negative grounding of the component is good.
Track and Locate Short Circuits
Save a lot of time to troubleshoot car wiring circuit faults, quickly and accurately find faulty wires and their fault points.
Overload Protection
When the current exceeds 7A, the internal circuit breaker of the tester will automatically trip and issue a buzzer prompt .
Polarity Test
Help you quickly identify the positive and negative polarity of vehicle cables and plugs.
Continuity Test
Help you quickly test the working status of switches, relays, diodes, fuses and circuits.
Power Circuit Probe Tester with 4M Test Lead
Wide Application
This automotive test light is suitable for diagnosis of all 6V to 24V automotive electrical systems and works well on cars, trucks, boats, trailers and motorcycles.
Probe Tip
Use the advanced high-sensitivity probe to quickly and accurately detect electrical system problems.
Extension Test Lead
The cable length of the circuit tester is about 4m (13FT), and the extension cable is very helpful for mobile maintenance work.
Auxiliary Ground Clamp
The black clip and auxiliary ground lead are connected directly through the unit. Users can consider it as a long jumper test lead by leaving the right clip disconnected from the battery.
Power Switch
The portable and ergonomic design of the circuit tester is very helpful for you to use in narrow areas.
Two Clamps
The clip with strong bite force is not easy to fall off, providing you with a better experience.
LED Indicator
LED indicator lights and buzzer prompt help you accurately determine the automotive electrical system problems and reduce the time for diagnosis.
Component Activation and Testing
Activate components in/Out of the vehicle's electrical system.
Grounding Test
lt can detect whether the component has a large current flow, and test whether the negative grounding of the component is good.
Track and Locate Short Circuits
Save a lot of time to troubleshoot car wiring circuit faults, quickly and accurately find faulty wires and their fault points.
Overload Protection
When the current exceeds 7A, the internal circuit breaker of the tester will automatically trip and issue a buzzer prompt .
Polarity Test
Help you quickly identify the positive and negative polarity of vehicle cables and plugs.
Continuity Test
Help you quickly test the working status of switches, relays, diodes, fuses and circuits.
About CMTOOL
Professional tools to serve your car and your happiness!
We have been focusing on the research and development of auto maintenance, diagnosis and testing tools, aiming to provide customers with more professional and higher-quality products.
We have an independent production factory, a professional R&D team and multiple engineers with more than 10 years of industry experience, so we can provide customers with professional pre-sales services and satisfactory after-sales solutions.
Professional Tools
Professional Tools
Professional Tools
Professional Tools
Battery Charger