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Shop the best prices on 11,482 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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3,169 - 3,200 of 3,200
Tuya WiFi Smart Door Sensor Wireless Magnetic Door Window Open Closed Detectors
$24.95 Save $5.00 RRP: $29.95
Security Window & Door Alarm Bell | Wireless Sensor Door Window Burglar Alarm | Pack of 10
$119.00 Save $40.00 RRP: $159.00
Smart Zigbee Vibration Motion Sensor App Control Security Protection Motion Shock Alarm ZG-103ZL
$35.95
Smart Zigbee Vibration Motion Sensor App Control Security Protection Motion Shock Alarm ZG-103ZL
$31.95
Beam Gate Photocells Infrared Sensor - Garage Gate Blind - 12V/24V AC DC unbrand
$59.00 Save $20.00 RRP: $79.00
Zigbee Smart Rain Sensor for Outdoor Wireless Rain Detection Waterproof, Zigbee Hub Required,Linka SZRH A-W
$21.95 Save $29.00 RRP: $50.95
RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Recessed Switch White - (6 Sets)
$31.95 Save $27.05 RRP: $59.00
High quality Tuya WiFi Smart Door and Window Sensor Alarm Sensor Support Alexa
$39.95 Save $24.05 RRP: $64.00
4-Piece Door and Window Alarm Set, Magnetic Burglar Alarm Sensor, Siren for Child Safety
$15.95 Save $6.00 RRP: $21.95
Door Window Sensor Quick Response Data Storage Voice Operation Red LED Door Alarm
$29.95 Save $15.00 RRP: $44.95
Smart Home Zigbee Solar Rain Sensor Wireless App Control Real-Time Rain Detection for Garden Automat
$34.95
Car Seat Pressure Sensor Fast Response Occupied Seated Alarm Starter Switch
$27.95 Save $12.00 RRP: $39.95
Wired-Magnetic Door Window Contact Sensor Waterproof Door Window Sensors Detector for Home Security Alarm System Multicolor
$23.95
W100 Smart WiFi Bridge Gateway and Door Sensor Set for Smart Lockboxes, APP Control for Home Office
$84.00 Save $45.00 RRP: $129.00
10W Magnetic Reed Switch Zinc Alloy Responsive NC Door Window Contact Sensor for Garage Warehouse Shop 100V
$19.95 Save $39.05 RRP: $59.00
12v Waterproof Infrared Photocell Gate Door Ir Sensor Automatic Barrier Hence
$0.95
Détecteur de sécurité photoélectrique infrarouge à triple faisceau, système de sécurité ABE-250
$99.00 Save $30.00 RRP: $129.00
TY-192 Tuya Smart Home WiFi Temperature And Humidity Sensor
$45.95
Turbidity Sensor Suspended Turbidity Value Detection Module Kit for
$16.95 Save $1.00 RRP: $17.95
TY-192 Tuya Smart Home WiFi Temperature And Humidity Sensor
$45.95
Tuya ZigBee 3.0 Window Door Gate Sensor Detector Controlled Via Smart Life App for Home White
$19.95 Save $3.00 RRP: $22.95
10pcs Magnetic Switch Door Window Security Alarm System Normally NC NO Contact Switches for Enhance
$22.95 Save $1.00 RRP: $23.95
Tuya Wifi Smart Door Sensor Window Entry Sensor with Scene Interaction Button Smart Life for APP Re
$20.95 Save $2.00 RRP: $22.95
2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Ho
$22.95 Save $2.00 RRP: $24.95
LQ-698 Tuya Smart Home Wireless Temperature And Humidity Detector Sensor, Need to be used with Gateway (TBD05620685)
$36.95
WiFi Door Sensor, Smart Door Window Sensor,for Assistant,Home Security Door Open,for Business Burgl
$19.95 Save $3.00 RRP: $22.95
Door and Window Alarm Multi-Functional Anti-Theft Alarm Wireless Remote Control Door Sensor Alarm 130DB Door Sensor Walk Walkbee 3843 B
$23.95 Save $11.00 RRP: $34.95
10 Pack Window Alarm Wireless Door Magnetic Sensor Alarm for Home Security System, Pool Door Alarm
$39.95 Save $19.05 RRP: $59.00
5 Pairs MC38 Wired Door Window Magnetic Sensor Contact Switch for Home Security Alarm
$29.95 Save $15.00 RRP: $44.95
Wired Door Contact Sensor Magnetic Switch Black NO Mount for Home Security Alarm System
$27.95 Save $13.00 RRP: $40.95
Zigbee Door and Window Sensor Smart Home Automation Alarm with Real-Time Remote Control and App Compatibility
$28.95 Save $15.00 RRP: $43.95
WiFi Door Window Sensor Wireless Smart Home Security Alarm with Instant Alerts and App Control
$21.95 Save $10.00 RRP: $31.95