ChengLi Door Window Open Alarm Sensor Security Sensor for Family/Office/Shop/Apartment ,etc.

Portable and easy to install , suitable for family, office, apartment. It can also be used for business trips or holiday. This is a device to notify you that children open the window and door by himself.
130 DB volume warn alarm can keep you away from dangerous when you fall into sleep and scare the thief.
Easy to install: just peel off the double-side sticker and then find the right location and paste it directly. (stickers included)
Battery indicator – When the battery is low, the device will remain flashing, making it easy to replace the battery and keep it safe for the home.
Suitable for the following occasions – home, hotels, garages, apartments, shops, office,etc.

Feature :

1. Wireless portable door window open alarm sensor
2. Easy to install: Use double-sided tape to paste it on the window ,door or slide door.
3. Superior environmental adaptability and stability
4. Dust and insect proof
5. Powered by 3 * LR44 battery
6. Multiple alarm modes to choose for: 30 seconds alarm; Doorbell;Burglar Alarm; Di-Di Burglar Alarm

Technical Parameters:
Working humidity:

Product Features

• 【Multiple alarm models to choose for】 30 seconds alarm; Doorbell alarm; Burglar alarm; Di-Di Burglar alarm
• 【Portable & Easy to install】 Double-sided tape included, no any wiring or screws needed.Perfect choice for family, office,apartment,garage, etc. Especially for trip.
• 【Multiple function】 Not only can be used to notify you that theif open your door/window, it also can be used to forgetful old people that the doors and windows are not closed, and can even be used to prevent children from leaving the house without inform.
• 【Wireless Door Window Open Home Security Alarm Sensor 】130 dB sound alert can notify you that door or window is opening.
• Door window alarm sensor is powered by 3* LR44 (Batteries included),usually it can standby for 12 months. Please contact us freely if there is anything we can do for you , and we will do our best to solve your problem asap within 12hours.