This is a CAN circuit tester that compatible with 12 and 24 volt systems, 16 pins design can achieve quick connect when during the vehicle maintenance diagnosis. If you are looking for this tool, come and have a try, it will not let you down. Features: This is a CAN circuit tester that compatible with 12 and 24 volt systems, has a wide applications. Test the DLC (On-Board Diagnostics port) for any errors, such as pin shorts and reverse polarity, before connecting other diagnostic devices to the DLC. Real-time display of communication signals (such as communication protocol signals) on the assigned pins, which can quickly locate faults and replace the voltage measurement function of digital multimeters. 16 Pin Design: Quickly connect 16 pins during vehicle maintenance and diagnosis. Monitor the On-Board Diagnostics input voltage when burning the module, and alarm for high and low voltage. Specifications: Material: ABS Input Voltage: 9.0-32.0V Direct current Maximum Load: 2.0A Resolution: 0.1V Overload Protections: Yes, PTC Fuse (Self-Healing) Reverse Polarity Protection: Yes, LED On Pin 4&5 Turn Red Operating Environment: 0℃-50℃, Humidity