TECKNET Door Alarms for Kids Safety, Door Alarms When Opened, Two-Way Door and Window Alarm Door Alarm for Home Security, 2-in-1 Alarm & Chime, 3-Level Volume Control, Door Sensor Alarm (3 Pack)

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About This 【Quick alarm】 When the distance between the alarm and the magnetic sensor exceeds 0.78 inches, the door and window alarm will sound an alarm. (Low-voltage alarm: when a short DIDI sound sounds after the alarm, it means that the battery is low and needs to be replaced in time.) 【Five Alarm Modes】By short pressing to adjust the alarm mode, there are five modes to switch according to the situation: 1. Alarm when opening the door, and stop when closing the door; 2. Ding-Ding doorbell alarm; 3. Alarm after opening the door lasts for 30S; DIDI alarm when opening the door, and stop when closing the door; 5. Alarm after opening the door for 15S, and last for 30S. 【3-Level Volume Control】This window alarm sensor has 3-level volume control, which is an ideal choice for apartments, mobile homes, offices, hotels, garages and other places. Press and hold the SET key to adjust the volume. There are three levels of volume adjustment to meet your alarm and reminder needs. 【Convenient Bidirectional Installation】The door magnet has magnetic induction function on both sides, which can be installed in both directions. The installation steps are simple, just peel off the attached sticker to install the alarm sensor on the door or window, etc.(Note: please keep the installation area clean and ensure that the sensor is installed within 0.78 inch from the arrow side of the alarm. ) 【36-Month Warranty】If you encounter any problems in using the product, please feel free to contact our professional customer service team, enjoying TECKNET 36-Month Warranty (Registered Only) Overview Color : White Brand : TECKNET Power Source : Battery Powered Battery Description : Alkaline Control Method : Push Button Show more