Function : System voltage 12 Volts and Voltage test in waveform Test Result Good, Recharge or Replace Capacity Cold Cranking Amps (CCA), DIN, EN and IEC information relative to battery rating. Internal resistance value (mΩ) and Life in percentage (%) Cranking system and Charging system Record and re-play battery data, Life-time free update service Battery test, cranking test, charging test and other additional functions. The major battery standards CA,CCA,BCL,MCA,JIS,SAE,EN,GB,DIN and IEC are supported. Feature : Measure Standard ,CCA 100-2000 ,BCI 100-2000 ,CA 100-2000 ,MCA 100-2000, JIS 26A17-24SH52 ,DIN 100-1400 ,IEC 100-1400 ,EN 100-2000 ,SAE 100-2000, GB 100-1400,System Voltage 12 Volts ,Input Voltage Range 8V-16V ,Power Requirements are no internal batteries required,Power on when hooked up during testing. KW208 battery tester key functions & features: 1. System voltage: 12 Volts 2. Test Result: Good, Recharge or Replace 3. Capacity - Cold Cranking Amps (CCA), DIN, EN and IEC information relative to battery rating. 4. Internal resistance value (mΩ) 5. Life in percentage (%) 6. Cranking system 7. Charging system 8. Voltage test in waveform 9. Battery test, cranking test, charging test and other additional functions. Package includes: 1*KW208 Auto Diagnostic Scanner 1*Users Manual