RYSJM | 12V 140A Smart Dual Battery Isolator Digital Voltage Sensitive Relay VSR Split Charge For Car RV Camper UTV Boat Marine Yacht

About This Item:【Manual State Function】： Long Press the button for 3 seconds, the BLUE led will be On, and the manual mode is on. Press the button each time, you can complete the circuit connection and disconnection. Circuit switched on the red indicator, voltmeter lights up at the same time. Switched off the red indicator, voltmeter lights off.【Auto State Function】： Long press the button for 3 button again, the BLUE led will be Off, the Auto mode is on. Voltage exceed 13.3V: Circuit will be automatically connected. Voltmeter & Indicator ON. Voltmeter lower than 12.7V: Circuit will be automatically disconnected. Voltmeter & Indicator Off.【Voltage Display】： This dual battery isolator is constructed with a voltmeter which will display the real-time voltage. If you connect 2 batteries, then the voltmeter will display the battery that has high voltage. The smart battery isolator is universal fit for truck, UTV/ATV, boat, marine, bus, etc.【Voltage Sensitive Relay】： Cut-in voltage: 13.3V and Cut-out voltage: 12.8V. Ensure the main battery is always charged so that you won’t worry about the the battery will drain out and stuck on the road. Very convenient and safe to use.【Pressure Protection】： Input voltage lower than 11V or Input voltage more than 17V: Circuit will be automatically disconnected so as to protect the main battery from over discharging. Please buy and use the dual battery isolator with confident because we offer quick and excellent after-sales service and “12 Months Warranty” for the products.Voltage Sensitive Relay VSR Smart Dual Battery Isolator Kit1. Ensure Main Battery Charged First. Keeping the primary battery charged and ensuring the car always ready to go and start whenever you want to drive it. Ensure main battery charged first and no need to worry about getting stuck on the road. Work as having two power source for each battery while only having one alternator!2. Compact and Convenient to Carry. The battery isolator kit fits with your cars, boats,trucks, marines and any other electrical vehicles. Compact and Convenient to carry.3. High Quality & Durable: Made of high quality and heavy duty made of zinc and aluminum, durable made for safety use. Also, constructed with a voltmeter display, which allows you to read the real-time voltage.