CAN Tester Box is a CAN Bus circuit tester compatible with 12 and 24 volt systems. Tests DLC (OBD port) for errors before connecting other diagnostic equipment, such as pin short circuits and reverse polarity connections. Real-time display of communication signals on allocated pins helps quickly locate faults and can replace the voltage measurement function of a digital multimeter. Enables fast connection to 16 pins during vehicle maintenance and diagnosis. Monitors input voltage of OBD during module programming with high and low voltage alarms. Compatible with other diagnostic tools such as multimeters, oscilloscopes, and diagnostic scanners, allowing easy troubleshooting of vehicle issues. Quickly identifies which pin has a problem. Specifications: Input Voltage: 9.032.0VDC Maximum Load: 2.0A Resolution: 0.1V Overload Protection: Yes, PTC Fuse (Self-Healing) Reverse Polarity Protection: Yes, LED on Pin 4 & 5 turns red Protocol Standard: PWM (J1850), VPW (J1850), ISO 9141-2, KWP2000 (ISO 14230-4), CAN (J2284) Operating Temperature: 0C to 50C, Humidity less than 70% Banana Socket: 16P x 2.0mm OBD Cable Length: 70cm (27.5 inches) Color: As shown Material: ABS Package Contents: 1 x Diagnostic Tester