12V car relay tester, battery relay tester, car relay diagnostic tool, car battery tester with clamps, heat-resistant, portable

【High Quality】: This battery tester is not only an excellent device for testing the battery charging and starting system, but also the charge levels of the alternator and starter. It allows for quick online measurement of battery voltage, internal resistance, terminal resistance, and other parameters.

【Practical Functions】: With this battery tester, you can test batteries both in and out of the vehicle, even discharged batteries. Simply connect the tester's clamp to the battery, and it will turn on and be ready for testing and analysis.

【Safety】: This battery tester features innovative, spark-free technology. It offers its users maximum safety and minimizes the risk of overheating. The device has a quick test function for optimal protection.

【Easy Operation】: The 12V battery tester offers voltage measurement, high sensitivity, fast response time, and simple, convenient operation. The device utilizes advanced circuit technology for more precise and consistent test results. [Details]: The conductivity tester compares the measured conductivity value of the car battery to the standard value for an undamaged car battery. A significant deviation indicates that the car battery needs to be replaced. Specifications: - Product Name: Relay Tester - Product Material: Insulating Material - Product Color: Red - Product Size: 110 x 60 x 26.5 mm - Product Weight: 0.5 kg - Application Range: 12 V - Package Contents: 1 piece