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Shop the best prices on 10,937 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Ydcy, Other and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1,121 - 1,152 of 3,200
Wireless Door Window Alarm Sensor 280m Range Entry Chime for Home Security with Magnetic Contact
$26.95 Save $24.00 RRP: $50.95
Home Security Wireless Remote Control Door Window Siren Magnetic Sensor Alarm Warning, 1 Remote Controller + 1 Magnetic Sensors
$21.95
10pcs Magnetic Switch Door Window Security Alarm System Normally NC NO Contact Switches for Enhanced p
$27.95
ZigBee 3.0 Temperature Humidity Sensor Battery Operated Smart Home Security Device
$18.95 Save $4.00 RRP: $22.95
10-pack Window Alarm with Wireless Door Magnetic Sensor for Home
$74.00 Save $20.00 RRP: $94.00
Driving Recorder Bracket Rearview Mirror Mount Arm ABS for Cars
$28.95 Save $13.00 RRP: $41.95
Rearview Mirror Adhesive Dash Cam Universal Design High-Definition Real-Time Monitoring 1Set
$23.95 Save $9.00 RRP: $32.95
4Pcs Tuya WiFi Smart Temperature Humidity Sensor Indoor Humidity Sensor APP Monitoring for Home Ass
$37.95
TuyaWifi SOS Emergency Panic Button for Elderly Alarm Sensor Home Burglar Alarm Falling Detector Security Alarm System A
$21.95 Save $10.00 RRP: $31.95
Door Window Sensor 2.4GHz WiFi Smart Wireless Remote Monitoring Home Security Burglar Alarm for Zigbee
$26.95 Save $32.05 RRP: $59.00
Secure Your Home with Our Remote-Controlled Door & Window Sensor Alarm - 108dB Alert
$50.95
Outdoor Door Window Magnetic Alarm Wireless Sensor Waterproof Monitor
$23.95
Door Window Open Alarm, Wireless Remote Control Magnetic Sensor
$15.95 Save $13.00 RRP: $28.95
1 Pair Home Security Single Beam Infrared Detector Anti-theft Counterfire Alarm Infrared Sensor
$17.95 Save $12.00 RRP: $29.95
Door Alarm, Window Security Alarm, 3/15/30/60 Seconds Wireless Fridge Alarm, 4 In 1 Door Sensor Doorbell Door Open Alarm Loud108db
$18.95 Save $40.05 RRP: $59.00
M5STACK RFID 2 Unit Mini RFID Reader Sensor WS1850S Radio Frequency for Smart portation
$27.95 Save $6.00 RRP: $33.95
Door Window Sensors Detector Home Security Magnetic Sensor Door Window Anti-theft Alarm Surface Mount Strong Concealment
$15.95
Small Intelligent Light Sensors with build In Low Battery Alerts Miniature Thread Activated Light Sensors Suitable for Furniture Multicolor
$51.95
Tuya Smart Door Window Alarm Sensor Door Magnetic Remote Sound and Light Password Disarm Tuya Smart Home
$32.95 Save $41.05 RRP: $74.00
Tuya Smart Zigbee Rain Sensor With Light Detector Solar Operated IPX6 Waterproof Rain Detector Remote Control
$69.00 Save $170.00 RRP: $239.00
Zigbee Smart Door Window Sensor Wireless Mini Alarm Sensor for Xiaomi Mijia Mi Home HomeKit
$14.95 Save $9.00 RRP: $23.95
2Pcs Tuya Zigbee Smart Siren Alarm Temperature Humidity Sensor Home Security with Strobe Alerts Works With TUYA Smart Hub 2025
$79.00 Save $80.00 RRP: $159.00
Photoelectric Beam Reflector Square 2Pcs For Outdoor Environments 6.00X4.00X0.70CM Mirror Reflection Technology
$17.95 Save $13.00 RRP: $30.95
2025 Zigbee Window Door Open Alarm Real Time Remote Control Magnetic Door Sensor
$24.95 Save $24.00 RRP: $48.95
2Pcs Infrared Beam Detector, 20m Waterproof Security Sensor for Door/Window Burglar Alarm System 26s
$21.95 Save $22.00 RRP: $43.95
2025 Wireless Home Alarm,door And Window Alarm 4 Modes Magnetic Wireless Sensor
$51.95 Save $52.05 RRP: $104.00
12V PC Fan Temperature Control PWM Speed Controller Module Alarm Buzzer Sensor with Alarm
$20.95
130dB Wireless Door Break Detector Home Door Anti-Theft Vibration Sensor Alarm
$43.95
Tuya Smart Door Window Alarm Sensor Door Magnetic Password Disarm
$21.95 Save $11.00 RRP: $32.95
Loud 130dB Wireless Door Open Detector Magnetic Alarm Sensors For Garage Door Window Real Time Alerts Easy Installation
$25.95
Expansion Board Module Kit for PICO W GPIO Expansion with 4-Channel Relay IO Sensor Debugging Modu
$69.00
Tuya ZigBee Smart Vibration Sensor: Real-Time Door & Window Monitoring with Alarm for Enhanced Security
$35.95