Dual Battery Isolator 24v 100amp for Marine Car Vehicles Truck Camper

[Wide Compatibility]--This battery isolators are small and suitable for almost anywhere, for ATV, UTV, Boats, RV's,marine vehicle, Heavy-duty truck, caravan,Off-road Camper Motorhomes Yacht[Fuction]--With the engine running the Voltage Sensitive Relay will engage when the starting battery reaches 27.4 Volts and the LED light will illuminate. This means that both batteries are now linked and the system is working.Once you turn off your vehicle the system will disengage the two batteries as it reaches 25.6 Volts,leaving your main battery safe to start again[Important Note]--When connecting accessories to your second battery ensure they are fused within 0.98FTcolour: blackMaterial: ABSPackage Contents:1 x Dual Battery Isolator1 set x Screw Mounting AccessoriesOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.