SABRE Wireless Elite Home and Commercial Door Security Alarm with LOUD 120 dB Siren and Exit Entry Delays - DIY EASY to Install ATTENTION-GRABBING  when door or window is opened, the extremely loud 120 dB alarm helps wake/alert homeowner or renter, helps deter intruder and possibly notifies neighbors (audible up to 750 feet/230M away) USER-FRIENDLY WITH EASY INSTALLATION  3 adjustable settings (off/alarm/chime); chime mode is ideal to alert you when children or guests are coming and going when you are at home; no wiring needed, plus sensor mounts on either side of alarm ATTRACTIVE & CONSUMER-PREFERRED  superior to other home security products, this premium white alarm looks great inside your home KEYPAD DOOR ALARM PREVENTS ACCIDENTAL ACTIVATION - alarm is secured by 4-digit PIN of your choosing with entry/exit delay setting; no key fob required EXTRA LEVEL OF SECURITY  provides battery status update with low battery indicator (requires 3xAAA batteries)