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Shop the best prices on 3,571 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on GreenZech, Nedis, Other and more. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to Canada.

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1,505 - 1,536 of 3,571
Magnetic Sensor Home Door Window Entry Warning Alarm Switch
$6.95
Expansion Board Module Kit for PICO W GPIO Expansion Board 4-Channel Relay IO Sensor Debugging Module Kit A
$28.95
SNZB-04P Zigbee Door and Window Sensor Local Smart Scene Linkage Tamper Alarm Security Compatible with Alexa Home unbrand
$21.95
WiFi Door Window Sensor APP Smart Home Security Protection Door Open Closed Detector for Alexa Yandex
$15.95
Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Sensor Alarm White- (10 Sets) unbrand
$16.95
Door Window Alarms, Adjustable Volume, Door Window Alarm Sensor
$54.00 Save $10.00 RRP: $64.00
Infrared Fence Alarm Smart Variable Frequency Human Body Sensing Light Grating Curtain Detector 833VDC 60 Meter / 196.9ft
$94.00 Save $55.00 RRP: $149.00
Door Opener Infrared Sensor 940nm 30m Range Single Beam Photocell Gate Infrared Detector 1224V for Home Safety White
$23.95 Save $13.00 RRP: $36.95
433MHZ Wireless Door Window Entry Magnetic Sensor Alarm Anti Theft Home Security System
$13.95 Save $8.00 RRP: $21.95
Door Window Sensor Quick Response Data Storage Voice Operation Red LED Door Alarm
$24.95 Save $15.00 RRP: $39.95
Light Curtain Sensor Switch Safety Light Grating Security Device DC24V(10 Beams BEM104030NB)
$149.00 Save $90.00 RRP: $239.00
Active Infrared Beam Sensor Anti Theft for Gate Openers Access Control Security Alarm System
$22.95 Save $13.00 RRP: $35.95
Door Window Alarm Home Security Door And Window Detector Magnetic Sensor Burglar Alert
$16.95 Save $9.00 RRP: $25.95
Infrared Fence Alarm Smart Variable Frequency Human Body Sensing Light Grating Curtain Detector 833VDC 100 Meter / 328.1ft
$94.00 Save $55.00 RRP: $149.00
433MHz Wireless Vibration Detector Alarm Sensor Door Window Burglar Security Alarm System
$14.95 Save $8.00 RRP: $22.95
10pcs Wired Door Window Sensor Magnetic Switch for Home Alarm System
$18.95 Save $11.00 RRP: $29.95
Smart WiFi Door and Window Sensor - 433MHz Alarm, Anti-Tamper, Low Power Design
$22.95
2X Tuya Wifi Door Sensor Window Entry Sensor Security Burglar Magnetic Sensor Alarm Smart Life for A
$18.95 Save $14.00 RRP: $32.95
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
2Pairs Smart Door Sensor, WiFi Window Door Sensor Alarm, Contact Sensor for Home Security, Smart Ho
$18.95 Save $7.00 RRP: $25.95
Door & Window Sensor Smart Door Magnetic Detector Sensor Wireless Alarm Work With Amazon Alexa Google Home,433mhz GreenZech
$38.95 Save $80.05 RRP: $119.00
Wired Water Sensor Warehouse Machine Room Home Security Alarm Nc/no Output Relay Options Water Leak Detector Liquid
$179.00
24GHz MmWave C4001 Sensor Human Presence Distance Velocity Detection Sensor 25M UART for Real-Time Monitoring Tracking
$45.95
2X Mini Tuya WIFI Elderly SOS Button Waterproof Emergency Panic Sensor Alert Push to Mobile Home Automation Security
$35.95 Save $18.05 RRP: $54.00
3X Mini Tuya WIFI Elderly SOS Button Waterproof Emergency Panic Sensor Alert Push to Mobile Home Automation Security
$54.00 Save $30.00 RRP: $84.00
Magnetic Sensor Switch - Wired For Home Garage Alarm Monitoring
$24.95 Save $20.00 RRP: $44.95
RJ11 Telephone Fax Surge Protector Lighting Thunder Arrester Protection Device 110V
$18.95 Save $10.00 RRP: $28.95
Garage Door Bracket for Ring Alarms Contact Sensors(2nd Gen), Easy-to-Install Garage Door Safety Accessory
$25.95 Save $26.00 RRP: $51.95
Power Off Detector Sensor Large Volume Wired Alarm System
$16.95 Save $10.00 RRP: $26.95
Wireless Vibration Alarm 120dB Alarm Sound Safe Prevent Theft Door Window Alarm Sensor for Home
$16.95
Wireless touch sensor burglar alarm strong security door knob alarm touch door handle 120dB ultra loud alarm sounds
$41.95 Save $27.05 RRP: $69.00
Zigbee Door Sensor Window Sensor Tuya Door Opener Detector Wireless Smart Door Sensor Alarm for Home Security&Automation
$13.95