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
Victor 816 Anemometer Measuring Air Conditioning Outdoor LCD Wind Speed Temperature Volume Meter Sensing High Precision Tester
Aliexpress UK
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
MARPOU Radar Sensor Ceiling Light Photosensitive Motion Sensor Automatic Sensing 30 Seconds Delay 15W 20W 40W AC220V LED Light
Aliexpress UK
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
Fresnel lens Infrared induction 120° induction angle 5M distance PIR lens high sensitivity Infrared sensing of human body
Aliexpress UK
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
Booster Pump 100W 24V 25L Full Automatic Intelligent Sensing Quiet Water Pressure Boost Pump
Aliexpress UK
1 cable 3.2 mtr red. 2 x inline fuse holders. 1 x 500mm cable red. 1 x 600mm cable black.
eBay
SONOFF Zigbee Human Presence Sensor SNZB-06P Presence Detection Light Sensing Smart Home Automation For Google Alexa Alice
Aliexpress UK
5mtrs 110amp 16mm2 Red Power Cable. 1mtr 110amp 16mm2 Black Earth Cable. 2 x Fuse holders & 100amp Fuses including spare. Heat shrink to protect all the connections. 15 x Cable ties + 10 x adhesive cable tie fixings to keep everything tidy.
eBay
Fld Brand Night Light Body Intelligent Sensing Lamp For Home Bedroom Dormitory Eye Protection Essential
Aliexpress UK
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
MINGBEN Radar Sensor Ceiling Light Photosensitive Motion Sensor Automatic Sensing 15W 20W 40W Ac220V LED Light Corridor Garage
Aliexpress UK
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
High quality outdoor solar street light with long-term operation, automatic sensing, waterproof, high-power solar street light
Aliexpress UK