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Wireless Window and Door Alarm Sensors

Quick Overview

  • [WIRELESS WINDOW AND DOOR ALARM WITH PIERCING SOUND] With a 115db alarm, this door alarm is loud enough to scare any prospective burglar into thinking twice about visiting your house or business.
  • [PROVIDES PEACE OF MIND AS WINDOW OR DOOR ALARM] Whether you are concerned with break-ins or just want to be notified when a door has been opened, the wireless door alarm can allow you to do both.
  • [PLACE IT ON ANY ENTRANCE OR OPENING] Secure to any window or door with this small but effective wireless alarm.
  • [TOOL-FREE INSTALL] With its strong adhesive backing, the door alarm sensor can be mounted to any doorjamb or window sash without causing permanent damage.
  • [LIMITED LIFETIME WARRANTY] Join millions of satisfied customers with our limited lifetime warranty, backed by our experienced and dedicated USA based customer service.


Availability: Out of stock

$14.99 $7.99


Wireless Security Window and Door Alarm Sensor

The Fosmon wireless window and door alarm provides you with a 115-decibel alert. Since two-thirds of all burglaries occur through open windows and doors, incorporating a window and door alarm will help prevent them, giving you peace of mind that you are more protected than before.

Cover Every Opening in Your House

Whether you need to secure a window, entry door, or garage door, this small and compact security sensor alarm has you covered.

Use as a Door Alarm

With its 115db alarm setting, this will act as a window or door alarm. Simply flip the switch and your door alarm will emit an alert when triggered.

Look! No Tools!

With its adhesive backing, the door alarm sensors are easy to install anywhere. Simply remove the backing, line up the arrows, and stick to door or window, making sure the sensors within 10mm of each other.

Limited Lifetime Warranty

Fosmon has served millions of customers for more than 10 years and every product comes with a limited lifetime warranty. If you are not completely satisfied with your purchase, reach out to our experienced and dedicated USA based customer service for support 24 hours a day, 7 days a week. Please refer to Fosmon's website for more information.

Additional Information

UPC 51050HOM = 879565510503, 51051HOM = 879565510510
Specifications Package Includes
  • 2x Fosmon Battery Window/ Door Alarm
  • 2x Fosmon Battery Window/ Door Sensor
  • 4x AAA 1.5V Battery
  • 1x User Manual


  • Power Source: Battery
  • Battery: 2x AAA 1.5v
  • Alarm Level: 115db
  • Alarm Modes: 1 (Siren)
  • Alarm Dimensions: (LxWxH) 3.6x1.2x.74in (92x31x19mm)
  • Sensor Dimensions: (LxWxH) 2.0x.55x.51in (50x14x13mm)
  • Weight: 1.0oz/ 30g
Compatibility No
Color No

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