Maypole 12V 7 Way Multiplex Bypass Relay MP3877 Product Overview Product Details 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. 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 55cm cable length
