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Shop the best prices on 11,731 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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2,785 - 2,816 of 3,200
Door Sensor Alarms Home Security Anti Theft Burglar Door Window Entry Open Sensor Alarms for Home Apartment
$14.95 Save $8.00 RRP: $22.95
2X E3Z-R61 NPN Photoelectric Beam Sensor with Bracket Mirror Reflection Photoelectric Switch Sensor 2m Range
$17.95
Safety Light Curtain Photoelectric Protection Sensor PNP NO Output Control Device DC1030V
$99.00 Save $60.00 RRP: $159.00
WIFI Smart Door Window Alarm Sensor Wireless Remote Control for Home Security
$20.95 Save $11.00 RRP: $31.95
Light Curtain Sensor Switch Safety Light Grating Security Device(4 Beams BEM0440-C-120NB)
$69.00 Save $50.00 RRP: $119.00
Door Sensor Alarm 0 to 6.6yd Infrared Body Induction Remote Control 2W Speaker Motion Sensor Doorbell for Home Warehouse
$59.00 Save $35.00 RRP: $94.00
WiFi Smart Door Sensor Window Door Open Closed Detectors Smart Home
$30.95 Save $28.05 RRP: $59.00
Smart Wifi Temperature and Humidity Sensor for Home Iot Device
$15.95 Save $68.05 RRP: $84.00
Freezer Security Alarm, Wireless Door Sensor with Loud 108dB Alert
$18.95 Save $130.05 RRP: $149.00
Infrared Detector 2Pcs Sensor for Home Security with Dual Beam Alarm
$159.00 Save $80.00 RRP: $239.00
Rain Cover Infrared Alarm Detector for Indoor Outdoor Use A Pair
$28.95 Save $25.05 RRP: $54.00
Smart WiFi Temperature Humidity Sensor Tuya Compatible 40m Range
$54.00
Automatic Door Safety Sensor Photoelectric Beam for Sliding Swing Doors
$89.00
Surface Mount Wired NC Door Contact Sensor Alarm 10pcs for Door Window Cabinets
$46.95
GPS Signal Detector Tracker Professional 50MHz-6GHz
$51.95
Tuya WiFi Human Presence Sensor 5.8G 5V MMwave Radar with Siren Alarm Motion Detection Smart Life Ho
$26.95 Save $32.05 RRP: $59.00
TUYA Zigbee 3.0 Smart Window Door Sensor ZigBee 3.0 Wireless Connection Multifunction for Smart Echo
$19.95 Save $24.00 RRP: $43.95
White Door Window Contacts Magnetic Reed Switch Sensor
$16.95 Save $20.00 RRP: $36.95
Zigbee Rain Sensor 2-in-1 Light Detector for Tuya APP Remote Control
$29.95
Smart Zigbee Rain Sensor Wireless Outdoor Detection
$32.95
Smart WiFi Temperature Humidity Sensor Tuya Compatible 40m Range
$45.95
Tuya ZigBee Light Sensor Smart Home Illumination Sensor APP Linkage Control Brightness Detector Illu
$27.95 Save $46.05 RRP: $74.00
Tuya Zigbee Door and Window Sensor Smart Home Automation Security Protection APP Alarm Remote Real-T
$20.95 Save $32.00 RRP: $52.95
Burglar Alarm for Doors and Window 120dB High Decibel Salarm Sensor
$20.95 Save $33.05 RRP: $54.00
Tuya Zigbee 3.0 Smart Contact Detectors Security Gate Door Window Sensor ducer Smart Life Home
$20.95 Save $33.05 RRP: $54.00
Tuya WIFI Light Sensor Brightness Detector with Temperature Humidity Detection Display Smart Home Se
$30.95 Save $38.05 RRP: $69.00
Tuya Smart Vibration Sensor ZigBee Tuya Sensor Monitor App Control Security Protection Zigbee Sensor
$18.95 Save $23.00 RRP: $41.95
Tuya Zigbee Smart Door Magnet Door and Window Sensor Rechargeable Wireless Smart Door and Window Sen
$21.95 Save $37.05 RRP: $59.00
Garage Door Bracket for Ring Alarm Contact Sensors 2nd Gen (Sensor Not Included), Garage Door Securi
$18.95 Save $22.00 RRP: $40.95
2Pcs Single Infrared Beam Sensor IP55 Protection Automatic Infrared Photocell Sensor Alarm for Gate Opener
$21.95 Save $7.00 RRP: $28.95
Zigbee Human Presence Sensor with Anti-Theft Warning for Smart Home
$32.95
Tuya Smart Door Window Alarm Sensor Door Magnetic Password Disarm
$29.95