OBD CP40 12V & 24V Automotive Power Circuit Probe Tester Kit Battery Testing. Car Power Circuit Probe Tester CT300 12V 24V BMS Short Repair Diagnosis Tools. When the temperature of the test circuit in hot level,this tool will respond in millseconds to turn on the over-temperture protection to prevent lose caused by excessive temperature.Overtemperature protection should wait for the device to cool down and continue to work.
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