Alarm Window and Door Contact Sensor

Expand your Ring Alarm system to secure each door and window in your home, and get alerts as soon as they open. Subscription required, sold

The Best Door and Window Alarms -Tested by Bob Vila

TANE Wired Side Lead Surface Mount Magnetic Contact WHITE Color Alarm Window Security Magnetic Door Switch Magnetic Contact Switch Reed Switch Normally Open + UL Listed FM-102-WH-PK50 (Pack of 50) - FPC

Ring Alarm Contact Sensor 6 Pack

Honeywell 947-75T - 3/4” Diameter Steel Door Recessed Contact with Terminals - Alarm Grid

Wireless Door Window Alarm Sensor 433MHz 1527 Code Battery Door Contact Sensor For GSM Alarm System Detect Window and Door - AliExpress

3 pcs Brown Wired Door Contacts Surface Mount NC Security Alarm Door Window Sensors. These Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

Product Name: Door Magnetic Sensor Switch Sensing distance: 10mm-15mm Product size: 29*15.5*9mm Wire length: 33cm Sensing distance: 10mm-15mm Service

5pcs Recessed Wired Security Window Gate Contact Sensor Alarm Magnetic Reed Switch Black, Magnetic Door Sensor, Normally Closed Magnetic Switch

Haosie Wired Window Door Contact Sensor, 10pcs Wired Door Sensor, White NC Recessed Wired Door Window Sensor Magnetic Switch for Home Security Alarm System : Tools & Home Improvement

Ring Alarm Contact Sensor (2nd Generation) (6-pack) Alerts you when a door or window opens at Crutchfield

TANE Wired Side Lead Surface Mount Magnetic Contact WHITE Color Alarm Window Security Magnetic Door Switch Magnetic Contact Switch Reed Switch Normally Open + UL Listed FM-102-WH-PK50 (Pack of 50) - FPC

Suitable for roller shutter doors, garage doors. Metal zinc alloy housing For home burglar alarm system, important kits of home security. With

2023 Alarm Security Rolling Gate Garage Door Contact Magnetic Door Window Magnetic Contact Sensor Detector

DSC PG9307 Recessed Wireless Door/Window Sensor Installtion

Expand your Ring Alarm system to secure each door and window in your home, and get alerts as soon as they open. Ring Alarm Contact Sensors easily mount to any door or window frame in your home for easy, DIY installation. Connect them to your Ring Alarm Base Station and receive mobile alerts from the Ring app whenever your doors or windows open. You'll always be the first to know when something's ajar.

Ring Alarm Contact Sensor 2-Pack (2nd Gen)