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 NOTES: 1. Due to different display and lighting effects, the actual color of the item may be slightly different from the color shown on the picture. 2. Due to manual measurement, please allow a little measurement deviation. 3. If you have any problem with the product received or your package is miing, please contact us in time, we will reply within 24 hours. 1. WORLDWIDE