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Shop the best prices on 12,821 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Ydcy, Dirtypigs and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to Ireland.

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2025 2pack Freezer Door Alarm,3/15/30/60 Seconds Wireless Fridge Alarm,4 In 1 Door Sensor Doorbell Door Open Alarm Loud108db
€26.95 Save €26.00 RRP: €52.95
4xSW-420 Vibration Tilt Sensor Alarm Module Motion Shake Shock for 25-26
€3.95 Save €4.00 RRP: €7.95
Freezer Door Alarm When Left Open, Safety Window Alarm, 3/15/30/60 Seconds Adjustable Delay Wireless Fridge Alarm, 4-in-1 Door Sensor Chime Door Open
€22.95
2x Tuya Smart WiFi Door Sensor Window Sensor Door Magnetic Alarm Detector 26s
€27.95 Save €26.05 RRP: €54.00
2025 Wireless Home Alarm,door And Window Alarm 4 Modes Magnetic Wireless Sensor
€40.95 Save €43.05 RRP: €84.00
Door Magnetic Sensor Embedded Reed Switch For Doors And Windows Waterproof Dustproof Home Anti-Theft Alarm
€19.95 Save €10.00 RRP: €29.95
24Pcs Door and Window Alarm Electronic Alarm Window Alarm Sensor
€32.95
Smart WiFi Door and Window Alarm Sensor, Remote Anti-Theft Alarm
€14.95
Tuya Matter Thread Door Window Sensor
€19.95
Wireless Security Alarm, Door Window Sensor, 90db, 10Pcs
€15.95
Smart Door Magnetic Sensor Anti-Theft Alarm for Door and Window Smart Home Security Detection
€29.95 Save €16.00 RRP: €45.95
Door Window Open Alarm, Wireless Remote Control Magnetic Sensor
€10.95 Save €13.00 RRP: €23.95
Magnetic Sensor Switch - Wired For Home Garage Alarm Monitoring
€18.95 Save €16.00 RRP: €34.95
10 Pack Window Alarm Wireless Door Magnetic Sensor Alarm For Home Security System, Pool Door Alarm
€59.00 Save €55.00 RRP: €114.00
Anti-Theft Refrigerator And Freezer Alarm, Door Window Left Open, Reminders At 30 Seconds Edition 0830
€18.95 Save €28.00 RRP: €46.95
Tuya WiFi Light Sensor Smart Home Illumination Sensor APP Linkage Control Brightness Detector Illumi
€19.95 Save €28.00 RRP: €47.95
2X Tuya Intelligent Pressure Sensor for ZigBee Gravity Detection Automation Scene Linkage 800mm
€69.00
6X 2.4GHz Wireless TTLOCK Door Sensor Door Contact Detection Windows Open Close Status Works with TTLOCK App Smart Locks
€64.00
24pcs Door And Window Alarm Electronic Alarm Window Alarm Sensor Anti-burglary Window Security Alar
€30.95 Save €15.00 RRP: €45.95
1-10pcs WiFi Smart Door Window Sensor Home Security Alarm Detector For Alexa Google Home
€18.95 Save €8.00 RRP: €26.95
Home & Garden > Business & Home Security > Security System Sensors
€11.95 Save €5.00 RRP: €16.95
Callback Locator Anti-Theft Voice-Activated Sensor Alarm N9
€17.95
Solar Animal Repeller Alarm Long Range Sound Light Outdoor Infrared Sensor Alarm with Remote Control for Orchard 1W 5V
€33.95 Save €35.05 RRP: €69.00
Tuya Smart Bluetooth Finger Robot Warp Switch Button Life App Voice Control Via , Assistant
€22.95 Save €4.00 RRP: €26.95
Air quality tester multifunctional carbon dioxide CO2 tester
€59.00 Save €5.00 RRP: €64.00
CO2 Detector Semiconductor Air Quality Monitor Temperature Humidity Sensor H8 Plus ZNAZGG01
€31.95 Save €37.05 RRP: €69.00
Alarm Magnetic Contact for Roller Shutter Garage Door Sensor NF
€27.95 Save €26.05 RRP: €54.00
Negative Battery Cable AV6N-10C679- for Focus Escape Transit 2012-2018 Battery Management System Sensor AV6N-10C679-GB
€43.95 Save €15.05 RRP: €59.00
SONOFF SNZB-02 ZigBee Smart Temperature Humidity Sensor Indoor Thermometer
€64.00 Save €45.00 RRP: €109.00
Tuya Door Window Sensor Zigbee Mini Wireless Connection Detector Smart Home Security Work with Alexa Google Home Smart Life 6pcs879
€79.00
Adjustable Voice Notification Door Alarm for Windows and Doors, Suitable for Garage and Cellar Use unbrand
€49.95 Save €19.05 RRP: €69.00
Outdoor Waterproof Black Infrared Beam Sensor Alarm ≤15m for Security
€15.95 Save €4.00 RRP: €19.95