ATD Automatic Timer DisconnectAdjustable time or voltage based battery disconnect automatically shuts off devices to preserve battery power12V signal triggers relay to connect battery power to devices. When signal is removed the timer is activated and will disconnect devices after a preset timeDisconnect can be triggered based on time, low voltage, or removal of 12V signalLow voltage will disconnect if time hasn_t been reached to preserve battery powerTime and voltage options can be turned off to allow 12V signal based disconnectClip-on cover insulates terminal connectionsOne-piece stainless flange nuts ensure safe and secure connectionsIntegrated LED indicates statusSpecifications:Nominal Voltage:12V DCAmperage Operating Current: 175mA(Combine / 15mA(Open)Continuous Rating:120AIntermittent Duty: 210Terminal Stud Size: 3/8-16 (M10)Time Range: 15min-4hrsWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.