Graflsoa Dual Battery Isolator 12 140Amp Manual and Auto modes Sensitie Relay with LED Screen, oltage Display, Designed for Truck, Marine,AT, UT, Boat, R, Camper

🍢🍕Manual and auto modes: Long press the "Select" button for 3 seconds - the blue (LED) indicator will be ON, the manual mode is on.the blue (LED) indicator will be OFF, the auto mode is on.
🍢🍕Input oltage lower than 11 or Input oltage more than 17: Circuit will be automatically disconnected so as to protect the main battery from oer discharging.
🍢🍕The surface of the isolator is equipped with an LED display to display the t-oltage status in real-time, allowing you to control the battery status at any time.
🍢🍕If two batteries are connected, then the oltage displayed on the oltmeter is the battery that has higher oltage.
🍢🍕Manual state use function:The blue indicator light is ON, press the button each time, you can complete the circuit connection and disconnection.The circuit switched on the red indicator , the oltmeter lights up at the same time. disconnect red indicator light, the oltmeter goes out at the same time.