3 Pack Door Window Alarms with Delay When Left Open 130db Siren Door Chime Sensor When Door Opens for Home, Apartment Security. Keypad Intruder Burglar Entry Alert. Pool Alarm for Kids Safety

["IMPORTANT: CONFIRM IF YOUR DOOR IS SUITABLE FOR INSTALLATION: –①The door panel (door leaf) and door frame must be on the same level (slight misalignment is acceptable). –②Both the door panel and door frame surfaces must be flat, providing enough space for mounting the alarm (needs 2.6 × 1.9 in) and sensing strip (needs 0.6 × 1.8 in) — particularly on the strike-side door jamb (the vertical frame on the same side as the lock/handle), which must be free of uneven decorative strips, raised patterns, or textures to ensure proper adhesion of the sensing strip. –③After installation, the gap between the alarm and the sensing strip must not exceed 0.78 inches(2 cm); -REFER TO THE IMAGE","【Door Alarm with Delay When Left Open】TO ARM: Press \"ENTER\" Button when leaving. You’ll have a 30-second exit delay to close the door and leave without triggering the alarm. TO DISARM: When the door opens, enter your PIN code within the first 5 seconds (DISARMING WINDOW Adjustable: 0 or 10s). If not disarmed in time, the alarm will emit a high-pitched, harsh sound for 30 seconds (adjustable to a continuous alarm if needed) to deter intruders or burglars and attract nearby attention.","【Door Chime When Door Open】CHOOSE CHIME SOUND: Soft bell tone – perfect as a kids' safety pool/door alarm. It alerts you without scaring children when they enter restricted areas or go out without permission. Also great as a sleepwalking reminder or for elderly people with Alzheimer's disease. reminder.","【Simple Button Pperation 】 No remote required. User-friendly for everyone, including seniors and kids – perfect when multiple family members need access without carrying extra remotes. VOLUME ADJUSTABLE: \"H\"-130db(Default ) or \"L\", chose according to your needs.","【Cordless - Powered by 3 × LR44 Button Cell】Included & User-Replaceable. Easy Installation – Use the included double-sided adhesive pads (included) to mount the main alarm unit and sensor strip on your door or window. Follow the simple instructions in the manual."]