Built-in LED indication (lights up when VSR starts). When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
TUYA 63A TOMZN 1P+N WIFI Smart Switch Energy Meter Metering Circuit Breaker voltage current leakage protection Relay MCB
Aliexpress UK
Simply connect the relay between your starter battery and leisure battery and the relay takes care of everything, making sure your starter battery is not drained for when you need to get going again.
eBay
Tuya WiFi Smart Bidirectional Energy Meter Power kWh Meter Earth Leakage Over Under Voltage Protector Timer Relay Switch Current
Aliexpress UK
Built-in LED indication (lights up when VSR starts). When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
TUYA SMARTLIFE 63A TOMZN WIFI Smart Switch Energy Meter Metering Circuit Breaker voltage current leakage protection Relay MCB
Aliexpress UK
Power stud: M6 copper screw nut. the parcel maybe delay, If you have any problems,mssage us, we will try our best to solve it. Continuous current: 100-120A. Instantaneous current: 160A. Current consumption - charging: 250mA.
eBay
12V 140 Amp Dual Battery Isolator Kit with LED Voltmeter Manual/Auto Mode Waterproof Voltage Sensitive Relay Smart Dual Battery
Aliexpress UK
It simply connects between the two batteries. The relay is connected between the vehicles main battery (Positive) and the leisure battery (Positive). Permanent live output (a live feed via relay from main battery + generally never used).
eBay
1/2P 63A Tuya WiFi ZigBee Smart Circuit Breaker MCB Switch Energy Meter Timer Relay kWh Voltage Current Protector Remote Control
Aliexpress UK
3mtrs 110amp 16mm2 Red Power Cable. 1mtr 110amp 16mm2 black Earth Cable. When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
Heavy Duty 110V 230V AC Home Usage Dual Display Adjustable Over Under Voltage Surge Protector Relay with Over Current Protection
Aliexpress UK
Built-in LED indication (lights up when VSR starts). When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
RMshebei Smart Life PV Smart Circuit Breaker Tuya Voltage relay 220v wifi Current Leakage Protection mcb automatic switch 63A
Aliexpress UK
Universal Size: Fits heavy duty modular fuse box series (BF43x) and battery switch, matching mainstream products in market. LED Light: Built-in LED indication light (ON when VSR starts). It also has a remote LED port that indicates the status of the VSR.
eBay
DC 10-110V Voltmeter Coulomb Meter 30A Relay Automatic Battery Charge Discharge Voltage Current Tester Battery Level Indicator
Aliexpress UK