1.CAN Tester Box is a CAN Bus circuit tester compatible with 12 and 24 volt systems 2.Testing DLC (OBD port) if any error before connecting connecting other diagnostic equipment to DLC, such as pin short circuit and polarity reverse connection 3.Real-time display of communication signals ( such as communication protocol signals ) on the allocated pins which can quickly locate faults and replace the voltage measurement function of digital multi-meter 4.Fastly connect 16 pins during vehicle maintenance diagnosis 5.Monitoring input voltage of OBD when burning module, high and low voltage alarm It can connect to other diagnostic tool, for example, multimeter, oscilloscope, diagnostic scanner, etc. Let you take it easy to check the problem of the car Quickly confirm which pin has problem. CAN Tester Box is a CAN Bus circuit tester compatible with 12 and 24 volt systems Testing DLC (OBD port) if any error before connecting connecting other diagnostic equipment to DLC, such as pin short circuit and polarity reverse connection Real-time display of communication signals ( such as communication protocol signals ) on the allocated pins which can quickly locate faults and replace the voltage measurement function of digital multi-meter Fastly connect 16 pins during vehicle maintenance diagnosis Monitoring input voltage of OBD when burning module, high and low voltage alarm. Specifications: Input Voltage : 9.0-32.0VDC Maximum Load : 2.0A Resolution : 0.1V Overload Protection : Yes, PTC Fuse (Self-Healing) Reverse Polarity Protection : Yes,LED On Pin 4and5 Turn Red Protocol Standard : PWM(J1850),VPW(J1850),ISO 9141-2,DIS or ISO 14230-4,CAN(J-2284) Operating Temperature : 0℃-50℃,Humidity less than 70 percent Banana Socket : 16P x 2.0 mm OBD Cable Length : 70 cm ( 27.5inch ) Color:As Shown Material: ABS Package Contents: 1 x Diagnosis Scanner