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Security System Sensors

Shop the best prices on 11,421 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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33 - 64 of 3,200
Security Window & Door Alarm Bell | Wireless Sensor Door Window Burglar Alarm | Pack of 10
$104.00 Save $55.00 RRP: $159.00
2 Pack White Burglar Alarm Door Window Sensor Wired Anti-theft Contact Detectors Waterproof Professional Quality For Kids Children Safety Diy Protecti
$16.95 Save $87.05 RRP: $104.00
2pcs Security 100db Wireless Door&Window Alarm Vibration Sensor Home
$52.95 Save $96.05 RRP: $149.00
New Tuya Zigbee Solar Light Sensor Waterproof IP65 Outdoor Brightness Detection Luminance Sensor Eas
$35.95 Save $11.00 RRP: $46.95
Wireless Door Alarm Window Opener Alarm Home Security Sensor Pool Alarm Child Security Anti-Theft (2 Pack)-Good
$119.00 Save $40.00 RRP: $159.00
2Pcs Wireless Door Window Alarm Sensor 90dB Burglar Alert
$22.95 Save $11.00 RRP: $33.95
Garage Door Bracket for Ring Alarms Contact Sensors(2nd Gen), Easy-to-Install Garage Door Safety Accessory
$26.95 Save $27.05 RRP: $54.00
R558S Capacitive Fingerprint Acquisition Module Access Control Security Equipment Fingerprint Recognition Module
$32.95 Save $26.05 RRP: $59.00
Door Contact Sensor Alarm Durable Zinc Alloy Responsive Normally Closed 10W 100V Magnetic Reed Switch for Warehouse for Garage
$74.00 Save $75.00 RRP: $149.00
2PCS Tuya Smart WiFi SOS Button Emergency Wireless Security Alarm Panic Device for Safety Smart Life Remote
$26.95
Security Tag Detacher / Magnetic Remover Clothing Hard Tag Remove
$16.95 Save $37.05 RRP: $54.00
Anti-Thief Wireless Door Alarm Abnormal Door Opening Immediate Alarm_i*
$10.95 Save $23.00 RRP: $33.95
Anti-Thief Wireless Door Alarm Abnormal Door Opening Immediate Alarm_i*
$10.95 Save $23.00 RRP: $33.95
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 Save $27.00 RRP: $49.95
Glass Break Alarm 125dB Window Vibration Detector Sensor Alarm 3 Pack Ultra-Slim Anti-Theft Alarm for Door and Window with Ajustment Sensitivity
$38.95 Save $100.05 RRP: $139.00
Wired Magnetic Sensor - Window Door Alarm Security Detector - Wide Gap
$39.95 Save $109.05 RRP: $149.00
1 Pair Home Security Single Beam Infrared Detector Anti-theft Counterfire Alarm Infrared Sensor
$21.95 Save $62.05 RRP: $84.00
Smart Garage Parking Light with Anti-Collision Sensor 300x200mm LED Alarm System
$64.00 Save $65.00 RRP: $129.00
Small PM2.5 Sensors for Continuous Air Quality Monitoring in Public Space and Workplaces DIY Air Quality Project
$84.00
Anti theft and addiction alarm, door and window sensors, wireless alarm and security device
$44.95
Glass Break Detectors, Window Alarm with 125dB Alarm, Glass Vibration Sensor Alarm for Your Home, Office, Garage, Dorm Room, Or Even RV, White(2 Piece
$46.95 Save $22.05 RRP: $69.00
Stainless Steel Float Switch for Tank Liquid Water Level Sensor Double Ball Float Switch for Tank Pool Flow Sensors
$30.95
Solar Driveway Alarm 984ft Range Wireless Sensor IP60 Weather-Resistant
$43.95 Save $20.05 RRP: $64.00
2025 Latest Model Door Open Detection Alarm Door & Window Sensor Simple Use Door
$18.95 Save $12.00 RRP: $30.95
Pack Freezer Door Alarm, Window Security Alarm, 3/15/30/60 Seconds Wireless Fridge Alarm, 4 In 1 Door Sensor Doorbell Door Open Alarm Loud108db
$38.95 Save $25.05 RRP: $64.00
clearance Wireless Door Alarm with Siren, Magnetic Door and Window Sensor Alarm
$43.95 Save $60.05 RRP: $104.00
Tuya Wifi Light Sensor Intelligent Home Lighting Sensor Link Control Light Sensor Illum
$31.95 Save $16.00 RRP: $47.95
24pcs Door And Window Alarm Electronic Alarm Window Alarm Sensor Anti-burglary Window Security Alarm
$54.00 Save $65.00 RRP: $119.00
24pcs Door And Window Alarm Electronic Alarm Window Alarm Sensor Anti-burglary Window Security Alarm
$69.00 Save $120.00 RRP: $189.00
Temperature and Humidity Light Sensor, WiFi Connection Voice Control, 2.4Ghz Operating Temperature -10℃-60℃, Indoor Environment Monitoring Device
$39.95 Save $24.05 RRP: $64.00
Burglarproof door sensor, intelligent induction alarm, -10-50℃ operation, home anti-theft alarm system
$25.95 Save $15.00 RRP: $40.95
Wireless Door and Window Alarm WiFi Smart Door Sensor Alexa Compatible 2-Piece Set
$59.00