Rearmaster OBD Power Cable for Dash Camera,24 Hours Surveillance / Acc Mode with Switch Button(USB Port) Display black screen on no

Display black screen on no signal in standby

Compatible for for CITROEN OBD2 port

some cases you might need to remove the dash panel to remove the OBD port

1 x 3M Tape

in this signal it will appear black-and-white screen

Rearmaster OBD Power Cable for Dash Camera,24 Hours Surveillance / Acc Mode with Switch Button(USB Port) Display black screen on noFeatures: 1. Designed to free up your cigarette lighter socket and supply a 24 hours continuous power to your dash camera via OBD connection,enable your dashcam to keep working on after you have parked the car. 2. Dual working mode switch button integrated for your convenience: ACC working mode,5 minutes off when your car ACC is off; Surveillance working mode, keep working until it detects low battery voltage(11. 6V). 3. Obtaining power from OBD