Features: Probing at the OBDII connector is no longer required. LEDs to quickly indicate power or grounds problems of OBDII connector. Easily access each of the 16 pins while scan tool communicating with vehicle. Uses safety banana sockets that accepts all types of 4mm banana plugs including those with safety sheaths. Mimics-the OBDII connector layout for quick reference. Quick, safe and convenient access to chassis grounds and power by this monitor. Specifications: Material: ABS, Electronic Component Voltage: 12V Size: Approx. 80x180mm/3.15x7.09in Cable Length: Approx. 90cm/35.43in Package Includes: 1x Protocol Detector note: CAUTIONS I DISCLAIMERS This tool is designed for use by automotive-professionals. This tool provides easy access to the vehicle data bus lines. Improper use of this tool can result in damage to the vehicle data communication system and associated circuits and systems. Do not jumper pins together without understanding the circuits. Do not use the tool to power up a load device exceeding 1 amp. Do not place a jumper between the power pin 16 and ground pins4, 5.When this monitor is engaged the yellow LEDs will flash when changes take place on the corresponding data line. The flashing LEDs will allow you to determine the activity on that line. The green and red LEDs corresponding to OBDII connector pin4,5 and 16 are oftenactive.