LCD display:Clear display, quick response, long service life,include Battery Life Percentage, CCA , Battery Voltage,Battery Resistance in case of any unexpected shutdown.Test value accurate to 0.01. Scope of application:12 V Lead storage battery exclusive use,measurable battery range: CCA 100- 9999.offer reliable and accurate operation for more sized batteries. Function:Continuous test with battery power, no damage to battery, and the reverse polarity and over voltage protection. Superior material:High quality ABS material,more durable,clamps are also firmly made. Durable & Long lasting:Come with large LED screen and heavy duty clamp, and beep remind function make it to be more durable and reliable. Battery condition:Tell me whether it is good, charge necessary, deterioration or exchange required. Package List: 1*Car Battery Tester