WiFi Door and Window Alarm Sensor with App (2.4 GHz) Timer Arm and Disarm, Time Delay, Adjustable Sound, Ajar and Open Alarms Overview A compact wireless sensor that monitors doors and windows and sends real time alerts to your phone through the companion app. Designed to detect both ajar and fully open conditions, it reduces false alarms with configurable time delay and supports scheduled arming and disarming. Key benefits Immediate alerts to your phone so you know when a door or window is opened. Distinguishes ajar from fully open to help avoid nuisance alerts when windows or doors are not fully closed. Adjustable alarm volume gives you control over audible alerts at the device. Time delay feature prevents accidental triggers during normal use. Timer arm and disarm lets you set daily schedules so the sensor is armed automatically when you want it to be. Uses standard 2.4 GHz WiFi for direct app connectivity without extra hubs. What it does and how it helps Door and window monitoring: Detects when an entry point is opened or left ajar and notifies you through the app. False alarm reduction: Time delay and adjustable sound level reduce unnecessary interruptions while keeping security active. Automated routines: Timer arm and disarm supports regular schedules for night time, away mode, or other routines to match your lifestyle. Compatibility and connectivity Connects to home WiFi on the 2.4 GHz band and is controlled through the mobile app. Works well with standard home routers that support 2.4 GHz networks. Design and performance Compact, low profile sensor fits most door and window frames for discreet installation. Responsive detection for quick alerts and reliable monitoring. Adjustable audible alarm to suit different rooms and sensitivity to activity near doors or windows. Practical applications Front door monitoring: Receive instant app alerts if the front door is opened while you are away or asleep. Window security: Get notified if a ground floor window is left ajar or opened, useful for homes and rental properties. Office or storage cabinet: Keep track of access to supply rooms or equipment cabinets and avoid unauthorized entry. What to expect in daily use Real time notifications to your phone when entry points change state. Ability to set schedules so the sensor arms automatically at designated times and disarms when you expect access. Easy adjustment of alarm sound and delay settings through the app to match household routines. Simple, focused security for doors and windows that adds mobile alerts, scheduling, and configurable alarms while using existing 2.4 GHz WiFi networks.