Pr Door and Window Alarm, Magnetic Window Door Burglar Alarm 130dB for Home, Store Security - Easy to Install (4 Units)

Simplified control: The door alarm does not require an additional remote control. It is equipped with an integrated on/off button and a configuration button for adjusting the volume and mode. Five modes: Press the setup button once to activate alarm mode; twice to activate doorbell mode; three times for a 30-second alarm; four times for an audible alarm; five times for an alarm delay of 15 seconds. Three volume levels: Press and hold the configuration button to adjust the volume: 130 dB, 90 dB and 60 dB, depending on your needs. Power supply: 3 integrated LR44 batteries.