Multi-function bicycle electronic bell alarm two-in-one vibration sensing bicycle alarm bell

Name: bicycle vibration sensor alarm/bell

Weight: 100g (including packaging)

Packing number: 100 per case

Battery installation:
Unscrew the black cover on the right side, screw with the screwdriver and remove the battery cover. 3 AAA batteries shall be loaded according to the polarity mark in the battery room. If the batteries are properly installed, the red LED lights of the product will start flashing.

Set password:
After the battery is installed, the finished LED flashes regularly, which requires the input of 4-digit password (composed of 1.2.3). When the input is successful, the bi-bi-bi-bi-bi-bi-bi-bi-bi sound LED will stop flashing.

Change password:
In the non-alert state, press the \"F\" key first, then enter the original four-digit password. When the bi-bi-bi-bi-bi-bi sounds, the red LED lights up for 5 seconds. After pressing the four-digit password, the bi-bi-bi-bi-bi-bi sound rises and the red LED stops flashing. Password changed successfully.

Operating instructions:
Anti-theft Settings: press \"F\" twice, di-du starts to sound, red LED lights flash, and enter alert mode within 5 seconds. Vibration is detected and the product gives out bi-bi alerts. If continuous vibration is detected for 2 seconds, the product will send an alarm sound for 30 seconds immediately.
End of alarm:

The alarm will stop automatically after 30 seconds. Or press the \"F\" key once, enter the four-digit password to manually stop the alarm sound, and remove the alarm. When the bi-bi-bi-bi-bi-bi sound rings, it means that the alarm has been lifted.
Bell function: press any number key 1.2 or 3 in the non-alert state, and the product will immediately emit 3-second ambulance sound.

Notes:
1. If the alarm sound/ring tone becomes small, the battery power is low, please replace the battery in time.
2. The password needs to be reset every time the battery is changed.
3. The product contains small parts, please don't play for children.