REMOTE CONTROL BATTERY DISCONNECT SWITCH: This 12V battery disconnect switch can prevent the car battery from discharging due to long-term parking, power consumption of electronic equipment, forgetting to turn off lights, aging circuits, etc., effectively protecting the battery and extending its lifespan; Control the switch within a range of 100m with the remote control. 12V BATTERY DISCONNECT SWITCH: When the battery voltage drops below 11.8V, the remote switch automatically turns off after 120s to save power; When the voltage is above 13.2V, the remote control is disabled to prevent accidental shutdown while driving; it can only be controlled by the manual switch. WIDE APPLICATION: 12V 240A car battery disconnect switch for most 12V and 24V cars, boats, RVs, trailers, trucks, ATVs, UTVs, motorcycles, and vehicles with an engine displacement of less than 3.0 liters. Note: The dimensions of the car battery switch are 8.5x6x3.5cm, which takes up little space and allows for wider use. This switch with LED voltage display allows you to easily check the battery voltage in real-time and know the battery status. EASY TO INSTALL: The switch uses a negative connection; Remove the battery's negative terminal, connect the switch to the battery's negative terminal and tighten the screw, connect the switch's red positive power cable to the battery's positive terminal. Power must be disconnected before installation. STABLE EMERGENCY STOP SWITCH: Operating temperature of the car emergency stop switch: -20°C ~ 100°C, Standby current consumption: 3 mA, Rated current: 240 A, Rated voltage: 12 V, Shut-off threshold: 11.8 V ± 0.2 V; Momentary current: 500 A. Includes: Emergency stop switch x 1, remote control x 2, gaskets x 2, manual x 1