Features： 1、This car battery tester tool can indicate the battery and the vehicle's electrical system: Battery capacity (voltage, CCA, internal resistance, SOH), cranking load, maximum working load, charging system during four main test results. 2、This battery tester is available for all 12v and 24v starter lead acid batteries, great compatible with agm flat plates, spiral agm and gel batteries. 3、This battery analyze tool has reverse connection protection and overvoltage protection. It can secure the user and prevent any damage to the vehicle's battery or electrical system. 4、This electrical battery tester covers all battery classification standards: CCA/JIS/DIN/IEC/EN. So you don't have to worry about its practicality in daily life and work. 5、This battery tester tool will let you read easily the conclusion of the battery condition good / ok / pay attention / replace as suggestion. You can easily judge whether the battery can be used normally. Specification： Item Type: Car Battery Tester Material: Plastic  Specification: CCA Range 100-1700 IEC Range 100-1000 EN Range 100-1700 DIN Range 100-1000 Jis Range Reference Table in Manual Test 12V and 24V Battery English and Spanish Interface and Manual Display Battery Internal Resistance Ohms Display Battery Voltage Volts Display Battery Condition Good / Ok / Pay Attention / Replace Starting System Test Charging System Test Maximun Load Test Package List： 1 x Detector 1 x Manual