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Shop the best prices on 11,231 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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1,569 - 1,600 of 3,200
10W Magnetic Reed Switch Zinc Alloy Responsive NC Door Window Contact Sensor for Garage Warehouse Shop 100V
$16.95 Save $122.05 RRP: $139.00
Tuya Zigbee Smart Door Magnet Door And Window Sensor Rechargeable Wireless Smart Door And Window Se
$26.95 Save $8.00 RRP: $34.95
Garage Door Bracket for Contact Sensors 2nd Gen (Sensor Not Included), Garage Door Security Accessory
$6.95 Save $2.00 RRP: $8.95
Magnetic Wireless Door And Window Open Detector Alarms Contact Sensors For Comprehensive Home Security Easy Installation
$26.95
E3Z-D61 Diffuse Reflection Infrared Sensor NPN Photoelectric Switch 12-24VDC
$22.95 Save $26.00 RRP: $48.95
10pcs 433MHz Wireless Vibration Glass Break Detector, Adjustable Sensitivity, Compatible with Alarm Systems
$69.00 Save $20.00 RRP: $89.00
Tuya ZigBee NEO 90DB Sound and Light Sensor with Siren SZRH A-R3424
$74.00
2025 Sensor Infrared Detection Photoelectric Sensing Switch Distance Security Alarm Parts DC5‑24V
$31.95 Save $32.05 RRP: $64.00
ZigBee Vibration Sensor for Smart Home Security, Door & Window Break Alert, Compatible with Smart Life App
$23.95 Save $27.00 RRP: $50.95
Smart Video Doorbell with Night Vision, Human Detection, Wireless Doorbell Camera for Indoor/Outdoor Use, Real-Time Two-Way Communication, Cloud 2025
$69.00 Save $70.00 RRP: $139.00
2025 For Door Window Alarms Adjustable Volume Door Window Alarm Sensor
$129.00 Save $130.00 RRP: $259.00
24-Pack Electronic Door and Window Security Sensors with Anti-Burglary Alarm Function for Home Safety
$59.00 Save $35.00 RRP: $94.00
Window Security Contact Switches Surface Mount NC NO Door Sensors Detector for Home Security and Burglars Alarm Systems Multicolor
$35.95
Door Window Sensor Detector Home Security Magnetic Sensor Door Window Anti-theft Alarm Surface Mount Strong Concealments
$32.95
Magnetic Door Window Contact Sensor Alarm Wireds Metal Security Home Burglars Alarm NO NC Magnetic Switches Easy Install
$32.95
Magnetic Door Window Contact Sensor Alarm Wireds Metal Security Home Burglars Alarm NO NC Magnetic Switches Easy Install
$32.95
Metal Wireds Magnetic Door Window Contact Sensor Switches Door Window Sensors Detector for Home Security Alarm System Multicolor
$36.95
Door Anti Burglar Protection Kit 911770 Door Security Device Replacement For Peugeot Boxer
$33.95
433MHz Wireless Magnetic Door Window Sensor Alarm for Home Security Entry System Anti Theft Detector
$9.95 Save $5.00 RRP: $14.95
Natural Gas Leak Detector 85db Alarm Sensor with Indicator Light, Home Security Warning Device for Kitchen and Basement
$12.95
Power Off Detector Sensor Large Volume Alarm System High Sensitivity Alert Device for Power Failure Monitoring and Early Warning
$17.95
Door Window Sensor Detector Home Security Magnetic Sensor Door Window Anti-theft Alarm Surface Mount Strong Concealments
$32.95
Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Sensor Alarm White- (10 Sets)
$26.95 Save $22.00 RRP: $48.95
25-26 10pcs Wired Door Window Sensor Magnetic Switch for Home Alarm System
$48.95 Save $45.05 RRP: $94.00
Tuya Diameter 12mm Wide Angle Fisheye Dual Frequency Wifi Door Eye Silver+black unbrand
$69.00 Save $15.00 RRP: $84.00
Door Window Sensor Alarm Security 700 Series Usb Charge Battery Operated 868.4mhz GreenZech
$84.00 Save $145.00 RRP: $229.00
Wifi Wireless Security Sound And Light Alarm Alarm
$84.00 Save $35.00 RRP: $119.00
25-26 Door Window Magnetic Contacts Set Wireless Sensor Detector Switch with Remote Controller
$48.95 Save $45.05 RRP: $94.00
Car Seat Pressure Sensor Fast Response Occupied Seated Alarm Starter Switch
$27.95 Save $12.00 RRP: $39.95
4PCS Tuya ZigBee Smart Vibration Sensor Real Time Monitoring Door
$54.00 Save $25.00 RRP: $79.00
Tuya Zigbee Door Window Sensors Wireless Smart Life Magnetic
$16.95 Save $5.00 RRP: $21.95
Reusable Trip Wire Reel 85ft with 12 Gauge Wire Perimeter Alarm Security
$59.00 Save $55.00 RRP: $114.00