carp fishing tackle bite alarm with CE

SIZE:50mm*100mm*20mm
Adjustable volume control,can be adjusted to Zero
Adjustable tone control
High Sensitivity control
Night light function,with lowest battery drain and can
be turned off while alarm remains active
100% waterproof.
With very low battery drain
If under standby mode, It can be used for almost
400days with quality battery
Memory function-settings remain after switch off
Extension box socket
Work with one 12V23A battery
Can add dropback function according
to the customer's requirement