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Security System Sensors

Shop the best prices on 8,937 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Gze, Hsmy and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to Singapore.

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289 - 320 of 3,200
Personal Safety Alarm, 140dB Loud Alert System, Compact and Reliable Security Device for Everyday Use
From $47.95
Wireless Door and Window Alarm - 4 Pack Magnetic Security Sensor for Home Anti-Theft Protection - 100 dB Loud Alarm
From $26.95
4Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
From $40.95
4Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
From $40.95
2PCS IR Alarm Sensor Automatic Infrared Beam Detector for Door Light Sensing
From $24.95
4Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Home Automation
From $38.95
Refrigerator and Freezer Alarm for Door Left Open, Reminder After 60 Seconds or More by YuJia
From $26.95
Door Alarm Sensor 120db Loud Wireless Door Alarm Hanging Contact Sensor Black Alarm
From $13.95
Wired Metal Door Window Magnetic Contact Sensor Detector Switch Alarm Home Garage Security Kit
From $54.00
Air Quality Monitoring Sensor Development Board Carbon Dioxide CO2 eCO2 TVOC
From $25.95
(New) Tuya WiFi Door Magnetic Sensor Remote Intelligent Linkage Doors Windows Switch Anti-alarm APP Reminder Alarm Tuya Door Magnetic Sensor
From $35.95
Wireless Door Open Sensor Alarm Chime, Adjustable Volume With Mute Indicators
From $27.95
Magnetic Reed Contact Switches, Surface Mounted NO NC Wired for Doors Windows, 2 Sets
From $30.95
Split Type Door and Window Sensor Door Magnet Sensor 60 Songs Protection Security Anti-Theft Volume Reminder EU White
From $20.95
Tuya Smart WiFi Door Sensor 80dB Sound Window Sensor Smart Life Arm Disarm Door Sensor APP Alert Alarm Door Sensor
From $16.95
Wireless Window Door Sensor, Magnetic Contact Switch, AC220V 2500W, Ideal for Extractor Hoods and Home Security EU Plug
From $15.95
WiFi Smart Zigbee Temperature and Humidity Sensor LCD Screen History Record Smart Home Security Remote Control
From $18.95
Advanced Solar Energy Rain Sensor for Wireless Outdoor Rain Detection Water Leak Sensor Linkage Control
From $54.00
White, Pack of 2 Door and Window Alarms, Magnetic Entry Sensor, Anti-Theft Alert, 110 dB Chime for Home, Garage, Children's Safety, DIY Protection
From $28.95
4-Pack Door and Window Alarms for Child Safety, Home Security, Office Security, Magnetic Anti-Theft Alarm Sensors, Door and Window Alarms, Free Batter
From $22.95
(Gray) Door and Window Alarm, 2PCS Wireless Door and Window Alarm with Powerful 130 DB Siren, Wireless Door and Window Detector, Magnetic Wireless Sen
From $24.95
Mailbox Alert Sensor, Real-Time Updates, Secure Home Monitoring, Easy Installation styok
From $45.95
2025 Latest Model Aqara Light Sensor T1 Zigbee 3.0 Brightness Sensor Smart Home
From $94.00
2025 Wireless Door Window Contact Sensor Alarm - Door Alarm Window Alarm_CP
From $32.95
3X TUYA Zigbee 3.0 Smart Window Door Sensor ZigBee 3.0 Wireless Connection Multifunction for Smart Echo Hub SmartLife
From $42.95
5X White Door Window Contacts Magnetic Reed Switch Sensor
From $16.95
Zigbee Illuminance Sensor, IP67 Waterproof Brightness Detector with Real-Time App Control for Light Monitoring
From $21.95
Smart Wifi Temperature and Humidity Sensor for Home Iot Device
From $14.95
Wireless Door Alarm with Adjustable Delay, 4-in-1 Sensor Chime for Freezer, Fridge, or Window, Alerts When Left Open After 3/15/30/60 Seconds
From $32.95
Personal Security Window & Door Alarm Bell Wireless Sensor Door Window Burglar Alarm Magnetic Sensor Door Alarm Set
From $17.95
Photoelectric Beam Sensor for Automatic Sliding and Swing Door Safety
From $47.95
Smart Door Magnetic Detector, High Sensitivity WiFi Wireless Detection, Compact and Durable Design, Home Security Door Sensor
From $18.95