Nuoxintr 110dB Motorcycle Alarm Lock Motorbike Anti theft Alarm Wheel Disc Brake Security Safety Siren Lock for Harley YAMAHA

Durable and WaterproofMade in waterproof stainle steel case,the inner silicone rubber gaskets on the edge of the alarm device effectively keep out the rain or splash.With waterproof function,keep working in rainy days and never get rusty.Steps To Use:1. Pre the lock button to lock the disc brake,and you will hear the sound "beep". When the lock is d, the lock will give off an alarm "beep beep beep" three times in case this is an accident.When d again,Silver Knight will give off an continuous shrill alarm for 10-12 seconds.And it keeps alarm with serial vibration.2.Silver Knight will cost you 3-5 seconds to open the lock ,if the key does not match,it will give off an alarm. Use the right key to open the lock,the alarm will stop at once.Battery RepmentWhen the lock no longer make sharp al,instead produce constant sound "Ge Ge Ge…", that means the battery is going to be exhausted and you need to rep them. Please use the Mini Wrench we provided to spin out the fours screw at the bottom,take away the shell and rep the battery. Pay attention to the anode "+" and cathode "-".