?This voltage controller£¬ using microchip control and LED display the detection voltage£¬ has features such as long life£¬ low power consumption and strong stability. It can be used to control electric equipment power on when vehicle started£¬ or power off when vehicle stalled. <br> <br> <strong>Features:</strong> <br> Adopts LED display the detection voltage£¬ digital adjustment for on-off voltage values. <br> 20A relay output£¬ adjusting 0-9s time delay and with memory function. <br> Delay power on/off function. <br> With power reverse protection£¬ over-voltage and short-circuit protection. <br> Applicable to under-voltage protection for small cars' 12V battery£¬ control power on-off of on-board units. <br> <br> <strong>Notice:</strong><br> This product can be used to control car DVR£¬ car audio and other electronic equipment of vehicle. The max. load current is 20A£¬ don't use it to control the vehicle power supply. <br> <br> <strong>Specifications:</strong> <br> Input Voltage: DC 9-20V <br> Max. Load: 12V 20A <br> Relay Close Current: 50mA <br> Quiescent Current: ¡Ü4.3mA <br> Operating Temperature: -40~85¡ãC <br> Dimension: 65 * 46 * 29mm / 2.56 * 1.81 * 1.14in <br> Weight: 47g / 1.68oz <br> <br> <strong>Package List:</strong> <br> 1 * Voltage Meter Test Control