WOYO CTB007 CAN Tester Box OBD2 16Pin Car OBD 2 Scanner Diagnostic Scan Tools for 12/24V Systems ?The CAN Tester Box is a CAN bus circuit tester compatible with 12 and 24V systems ?Tests the DLC (OBD port) for any errors such as shorted pins and reverse polarity before connecting other diagnostic equipment to the DLC ?Real-time display of communication signals (e.g. communication protocol signals) on the assigned pins allows for quick fault localization and replaces the voltage measurement function of a digital multimeter ?Quickly connect 16 pins during vehicle maintenance and diagnosis ?Monitoring OBD input voltage 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,the LED turns red on pins 4 and 5 ?Protocol standards: PWM (J1850),VPW (J1850),ISO 9141-2,DIS/ISO 14230-4,CAN (J-2284) ?Operating Temperature: 0??-50??,Humidity