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Shop the best prices on 10,603 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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161 - 192 of 3,200
Smart Wireless Sensing Doorbell Waterproof Doorbell Security Alarm Kit for Home Yard with 1 Alarm 2 Sensor 110?240V US
$39.95
90db Wireless Security Alarm Door Window Sensor Independent Magnetic Opening Sensor Enhanced Home Sa Edition 0718
$15.95 Save $30.00 RRP: $45.95
2025 Latest Model Automatic Leveling Sensor Kit Print Compensation Sensor Hot
$33.95 Save $12.00 RRP: $45.95
Tuya ZigBee Light Sensor Luminance Sensor Beam Sensor Real-Time Luminance Detection Smart Home Automation App Control
$17.95
SONOFF SNZB-02 ZigBee Temperature And Humidity Sensor Real Time Notification
$17.95 Save $25.00 RRP: $42.95
TUYA Zigbee Temperature Sensor APP Remote Monitor Tuya Waterproof Temperature Sensor Smart Home 2M
$20.95 Save $13.00 RRP: $33.95
5 Pcs -38 Wired Door Window Sensor Magnetic Switch For Home Alarm System,When Sensor Together,Norma Edition 0112
$7.95 Save $25.00 RRP: $32.95
2026 4xSW-420 Vibration Tilt Sensor Alarm Module Motion Shake Shock for
$5.95 Save $5.00 RRP: $10.95
Magnetic Contact Sensor for Garage Door with L-Bracket Alarm
$27.95 Save $11.00 RRP: $38.95
Tuya Smart Wifi Alarm Door And Window Vibration Sensor Security Protection Alert Works With Alexa, Smart Life(black)--
$32.95 Save $6.00 RRP: $38.95
Door Anti Burglar Protection Kit 911770 Door Security Device Replacement For Peugeot Boxer
$33.95
Tuya Zigbee Door and Window Sensor for Smart Home Security with Alexa and Google Home in UK
$27.95 Save $21.00 RRP: $48.95
ZigBee Vibration Sensor for Home Security Door Window Break-in Alarm Detector Compatible with Smart Life APP
$33.95
12/24v Photocell Sensor Beam For Sliding Gate Opener Infrared Safety Photo Cell
$24.95 Save $84.05 RRP: $109.00
Tuya WiFi Smart Home Burglar Alarm Sensor Infrared Motion Detector PIR Sensor Security Protection R
$29.95 Save $4.00 RRP: $33.95
2 Pack Wifi Smart Door And Window Sensor Door Detector Wireless Sensor
$89.00 Save $25.00 RRP: $114.00
Wireless SOS Emergency Button Alarm Home Burglar Alarm Sensor 433MHz
$12.95 Save $15.00 RRP: $27.95
Ultrasonic Ranging Alarm Kits LED Display Design of Reverse Alarm DIY Kit Ultrasonic Sensor Module f
$15.95 Save $9.00 RRP: $24.95
1 Set Touch Lamp Repair Kit 3 Way Touch Sensor Dimmer Control Module Replacement Sensor
$14.95 Save $69.05 RRP: $84.00
Infrared Beam Sensor Outdoor Waterproof Single Beam Infrared Beam Alarm for Security System Factory
$27.95 Save $8.00 RRP: $35.95
Glass Break Alarm Glass Door Window Vibration Sensor 130db Glass Breaking Alarm Window Sensor
$42.95 Save $66.05 RRP: $109.00
13,000gs Magnetic Security Tag Remover Golf Detacher For Eas Security System
$45.95 Save $63.05 RRP: $109.00
Utp 4 Channel Passive Video Balun Transceiver
$34.95
Magnetic Wireless Door And Window Open Detector Alarms Contact Sensors For Comprehensive Home Security Easy Installation
$49.95
Small PM2.5 Sensors for Continuous Air Quality Monitoring in Public Space and Workplaces DIY Air Quality Project
$84.00
2 Pack Wifi Smart Door Window Sensor Door Detector Wireless Sensor With App Alarm
$39.95 Save $139.05 RRP: $179.00
C100 125dB Vibration Sensor Alarm Door and Window Alarm Home Personal Anti-theft Alarm(Black)
$20.95
Door Alarm, Door Opening Detector With Powerful Siren, Magnetic Wireless Door And Window Alarm(pack Of 1) new SZRH A-G 25-26s
$43.95 Save $45.05 RRP: $89.00
10pcs Surface Mount Wired NC Door Contact Sensor Alarm for Door Window Cabinets 25-26s
$23.95 Save $23.00 RRP: $46.95
Tuya Zigbee Solar Light Sensor IP65 Waterproof Outdoor Brightness Detector with Real Time Luminance 25-26s
$33.95 Save $35.05 RRP: $69.00
Tuya Wifi Wireless Smart Door Window Sensor System Cell Phone Monitoring Safe Burglar Alarm for Home Door Window 25-26s
$30.95 Save $33.05 RRP: $64.00
Car 4 Way Circuit Standard Ato Blade Fuse Box Block Holder 12v/24v+4 Way Fuse
$13.95 Save $7.00 RRP: $20.95