The TOPDON BT600 is an advanced battery tester for 12V and 24V systems. With a 3-1/2" color screen and built-in thermal printer, this tool offers a solution for accurate and convenient testing. Users can view the battery's condition and print test reports in real-time. The BT600 features conductivity testing technology and includes reverse polarity protection to prevent improper connections. This multifunctional tool can measure the Cold Cranking Amp capacity of the car's battery, its state of health, and analyze the starter and charging systems.