A 7 way bypass relay is connected directly to the vehicles lighting circuits to control the lights on a trailer and caravan. The relays do not put any extra load onto the vehicles lighting system. The relays also feature a built in audible buzzer that monitors the trailer and caravan indicators. All bypass relays can be powered using either the battery or the fuse box.

• Specifications
• Works on most vehicle types and most filament bulb and LED lamp combinations
• Differentiates circuits on dual voltage tail/brake and tail/fog systems
• Monitors indicators / flashers via the internal buzzer, which mutes under hazard warning conditions
• Ancillary flasher/indicator monitor output to panel lamp or additional buzzer
• Made in the UK