BT201 Battery Tester 12V Car Universal Cranking Charging Circut Diagnostic Tool Multi-Function Detectable for 100-2000 CCA Functions: BT201 is a 12V car battery tester, suitable for car owners and car maintenance technicians, the working voltage is DC9-18V. It can quickly read important car battery data, such as voltage, internal resistance, cold cranking current and battery capacity, battery health and state of charge. The ability to provide accurate test results, calculate the battery;s cold-cranking capability and age, allowing for faster and more precise vehicle repairs. It can detect ordinary flooded batteries with a capacity of 100-2000 CCA, AGM flat plates, AGM spirals, and GEL batteries. Specification: Display: 128*64 External Power: 12V Operating Temperature: -20 to 60 Storage Temperature: -20 to 70 Function Button: UP, DOWN, OK, ESC Color: Black Support Language: English, Portuguese, Italian, French, German, Ruion Package Included: 1 x Battery Tester 1 x User Manual