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MJX F45 RC Helicopter Spare Part Signal loss Alarm Lost Plane Finder

Signal loss Alarm & Lost Plane Finder simple device that plugs into any servo/rx port, will detect the loss of TX signal and emit a loud 85dB alarm. Ideal for warning you if you have not turned off your RX power supply while in the pits, or if you are having trouble finding a model in the long grass, simply turn off your TX and within a minute, the alarm will sound. Specification: Weight: 4.5g Operating Voltage: 4v~6v Current Drain: 1~35mAh Package Included: 1 x Signal loss Alarm & Lost Plane Finder    

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