Select the test program according to the battery type/standard/CCA, the battery tester will start working and quickly show you the battery CCA value, health (%), state of charge (%), voltage (V), internal resistance (Ω) and so on. By analyzing the test data, you can check the condition of the battery and judge whether it is in good condition or needs to be replaced to avoid accidents caused by battery failure. Its compact and lightweight design makes it easy to carry and store. 12V & 24V Battery Tester: This battery tester can detect all automotive 12v and 24v lead acid batteries with a capacity between 30 and 999CCA, such as regular flooded, AGM, EFB, and GEL batteries. Fast & Accurate Detection: Adopting advanced conductivity test technology, this battery tester provides you with accurate test results displayed in just 3 seconds based on SAE,DIN, IEC, EN, and CA standards. Easy To Operate: Just connect the clips of the tester to battery correctly and then select the test program according to the battery type/standard/CCA. The 2.7in LCD screen will display all important data including CCA value, SOH, SOC, voltage, internal resistance, and discharge capacity. By analyzing the data, you can decide whether it’s worth to recharge the battery or if you’d better replace it. Reverse Protection: The high-quality clamps feature reverse polarity protection and overvoltage protection for a stable and secure connection during testing. No need to worry about damaging the battery and equipment due to wrong operation. Wide Applications: The compact and lightweight design makes it easier to carry and store. Perfect for RVs, motorcycles, ships, boats, lawn mowers, off-road vehicles and other vehicles or tools using lead-acid batteries. Brand: FOXSUR Product Type: Car Battery Tester Color: Black Red Material: ABS Test range: 3AH - 200Ah Test result: SOH, SOC, CCA Value, IR, and etc.. Test standards: SAE,DIN, IEC, EN, CA Voltage measure range: 8-30VDC Display: 2.7" LCD Storage Temperature: -20℃ to 70℃ (-4℉ to 158℉) Working Temperature: -20℃ to 60℃ (-4℉ to 140℉) Car Battery Tester Size: 15*8.5*3.1cm/5.9*3.35*1.22in Car Battery Tester Weight: 330g/0.73lbs Cord Length: 59cm/23in Storage Bag Size: 25.8*16.4cm/10.2*6.5in Package Size: 22*16*7cm/8.66*6.3*2.76in Package Weight: 451g/0.99 lbs 1* Car Battery Tester 1*Storage Bag 1*User Manual