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 1 Pack

["【VERY IMPORTANT-READ FIRST BEFORE ORDERING】Confirm compatibility with your doors/windows before purchase: Check for enough flat surface: –① Main alarm needs 2.6 × 1.9 in flat area on door/window; –② Sensor strip needs 0.6 × 1.8 in flat area on frame/edge; –③Alarm and sensor strip must be on the same horizontal level(minor height difference is OK); –④Maximum gap between them: ≤ 1.2 in (3 cm). If these conditions are not met, the alarm may not work properly.","【Door Alarm with Delay When Left Open】TO ARM: Press Button 4 (ENTER KEY) 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 (adjustable to 10 seconds or 0s if needed). If not disarmed in time, the alarm will emit a high-pitched, harsh sound for 30 seconds (adjustable to 60 seconds or 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 Batteries (User-Replaceable & Included). 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."]