Features of Rhundo RS-21S Car Charger Splitter Adaptor with Auto Cut off Battery Drain Prevention:

Auto Power Off & Battery Discharge Prevention (BDP) for DahCam Parking Recording: If your vehicle comes with an always ON/LIVE type of cigarette port (12V port), the auto power-off feature allows you to specify the length of time (between 1 to 120 minutes) after which it will be turned off if battery voltage drops to your specified voltage value (11V to 14V). It is best suitable for Dashcam recording while car is parked. Example: Your dashcam is connected with RS-21S and you have set Voltage as 12V & timer as 1 Minutes and now you turned off your car. Then dashcam will keep recording as your car’s 12V Socket is of always Live Type, however ,once car battery voltage drops to 12V, this RS-21S will be turned off in 1 minute.
Power Switches with Touch Sensor:  Individual ports can be turned on/off by touch sensor.
Sequential Power-On for outlets:  Reduces surge at engine start-up and prevent any damage to gadgets connected thru RS-21S.
Voltage Display: Displays Car Battery Voltage
Amperage Display: Displays output current of two USB ports.
Timer Display: Displays the duration of time since the unit is turned on.
Temperature Display: Displays ambient/external temperature. (Optional. Temperature Sensor & cable not included)
Power ON Delay Timer: Set the delay time from 1-30 seconds before the device switches on.
Voltage Display Offset: Calibrate the displayed car battery voltage.
Circuit Based Overload Protection: Provides efficient protection compared to resettable fuse based protection.