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Security System Sensors

Shop the best prices on 4,158 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Gze, Maikaisen and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to Canada.

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1,313 - 1,344 of 3,200
2026 Best Door Window Alarms, Toeeson 120DB Pool Door Alarms for Kids Safety, Window Alarms for Home
From $119.00
Window Door Alarms, Personal Security for Kids Safety, Burglar Alert, Door Open Chime Pack of 4
From $69.00
Graffiti Zigbee Smart Temperature and Humidity Sensor Smart Home Link Wireless Temperature and Humidity Sensor
From $13.95
2Pcs Automatic IR Beam Alarm Sensor for Door Window Burglar Security System
From $49.95
2026 Best Window Door Contact Sensors Alarm Magnetic Switches for Office Home Security 110-220V Magnetic Switches for Alarm System Black
From $69.00
2026 Best Window Alarm Sensors, Door Alarms for Home Security Loud, 120DB Pool Window and Door Alarms for Kids Safety (10 Pack)
From $119.00
2026 Good!! Window Alarm Sensors, Door Alarms for Home Security Loud, 120DB Pool Window and Door Alarms for Kids Safety (10 Pack)
From $129.00
Tuya Zigbee Light Sensor Illumination Sensor Smart Life App Scenes Linkage Control Smart Switch Bul
From $54.00
2026 Best WiFi Smart Door Sensor Window Wireless Compatible with Alexa, Google Home, Home Alarm Send Alert to Your Smartphone, No Hub Required
From $33.95
2026 Good!! Window Door Alarms, Personal Security for Kids Safety, Burglar Alert, Door Open Chime Pack of 4
From $74.00
2026 Best 2-Pack 2.4GHz Wireless Door Sensor, ABS Material White, Door Contact Detection for Window Door Open Close Status, Compatible with Smart Lock
From $59.00
Wifi Door Sensor Smart Window Door Sensor Alarm,contact Sensor For Home Security Wireless Magnetic Door Open Detector
From $54.00
2X Wireless PIR Infrared Thermal Alarm Human Detection Sensor with Remote Control Outdoor Camping Anti-Animal Alarm
From $26.95
10Set/Lot Wireless Burglar Alarm Door and Window Magnetic Sensor Alarm Smart Home Security Protection Door Window Alarm
From $16.95
4Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
From $29.95
Bed Wetting Wireless Alarm Urine Sensor Rechargeable Pee Wet Alarm With Receiver
From $59.00
Wired Magnetic Door Sensor Switch 5m Cable for Garage & Roller Shutter Control
From $25.95
5X TUYA Zigbee 3.0 Smart Window Door Sensor ZigBee 3.0 Wireless Connection Multifunction for SmartLife App
From $47.95
WiFi Door Sensor Compatible with Alexa and Google Home, Battery Powered
From $25.95
Real-Time Monitoring Mailbox Sensor for Home Safety
From $38.95
Flashing LED Stop Sensor With Adjustable Stand Auto Parking Detector For Garage Port
From $54.00
2-Pack 2.4GHz Wireless Door Sensor, ABS Material White, Door Contact Detection for Window Door Open Close Status, Compatible with Smart Locks Supporti
From $36.95
2-Pack 2.4GHz Wireless Door Sensor, ABS White Window Door Contact Detection, Open-Close Status, CR2032, Compatible with Smart Locks for Door Sensors
From $79.00
Tuya ZigBee SOS Button Sensor Alarm Wireless Emergency Help Switch Elderly Children Alarm Tuya Smart Life Remote Control
From $13.95
Tuya WiFi Door Window Sensor Magnetic Alarm, Smart Entry Sensor with App Remote Control
From $31.95
Tuya WiFi Door Window Sensor Magnetic Alarm, Smart Entry Sensor with App Remote Control
From $25.95
Tuya WiFi Door Window Sensor Magnetic Alarm, Smart Life App Remote Control
From $25.95
2026 Best Magnetic Switches 110-220V Wire Door Magnetic Switches for Office Security Window Door Contact Sensors Alarm Switches Brass
From $69.00
Wireless Door Alarm with Remote Windows Open AlarmsHome Security Sensor Pool Alarm for Kids Safety Sliding (2 Pack)
From $119.00
Adjustable Delay Wireless Door Alarm for Freezer, Fridge, and Window Safety, 4-in-1 Sensor Chime with 3/15/30/60 Seconds Settings
From $37.95
WiFi Door Alarm Sensor with Tuya App Control, 80 dB Sound and Light Alarm
From $33.95
Tuya WiFi Door Window Sensor Magnetic Alarm, Smart Entry Sensor with App Remote Control
From $25.95