Voltage Sensitive Relay 12V 140Amp Dual Battery Smart Isolator

Voltage Sensitive Relay 12V 140Amp Dual Battery Smart Isolator 

Optimize your dual-battery setup with this Voltage Sensitive Relay (VSR). Its dual sensing monitors both batteries, redirecting excess charge to your starter when needed for easy engine starts. With auto/manual modes and an optional zero-consumption storage mode, it adapts to any situation. The stable 13.3V connect and 12.8V disconnect thresholds maintain battery health while protecting against over-discharge and surges. A built-in LED shows connection status at a glance, and the IP67-rated, silicone-sealed design ensures durability in tough conditions.

This device manages dual battery systems in vehicles like vans, RVs, trucks, and boats. Pressing the button connects or disconnects the circuit, turning the red LED and voltmeter on or off together.

Auto Connect: When input voltage exceeds 13.3V

Auto Disconnect: When voltage drops to 12.7V

Protection Mode: Disconnects automatically below 11V or above 17V to protect batteries
It displays the voltage of the battery with the higher charge. To test one battery, disconnect the other. If the voltmeter is off, press the button to display voltage for 2 seconds.

The enclosure is dustproof, oil-resistant, and waterproof

Specifications
Voltage:    12V
Charging Current:    90-120Amp Continuous,160Amp Max
Cut-in Voltage:    13.3V
Cut-out Voltage:    12.8V
Cut-out Delay:    3-5 Seconds
IP Rating:    IP67
Product Dimension:    66.5mm(L) x 66.5mm(W) x 56mm(H)

Included
2 x Ring Terminals
4 x Mounting Screws