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Shop the best prices on 11,582 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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385 - 416 of 3,200
Infrared Beam Sensor 2Pcs High Sensitive Home Security Alarm System
$139.00 Save $110.00 RRP: $249.00
Advanced Detection Technology Infrared Alarm Homeowners Indoor Outdoor Surveillance Angle Adjustable 2Pcs
$149.00 Save $50.00 RRP: $199.00
10-Pack Wireless Door and Window Alarm Sensors for Home Security, Magnetic Contact Alerts for Pool and Entry Points
$79.00 Save $50.00 RRP: $129.00
Tuya Smart WiFi Alarm Door and Window Vibration Sensor Security Protection Alert Works with Alexa, Smart Life(White) Edition a 2025
$30.95 Save $33.05 RRP: $64.00
Wifi Digital Temperature Sensor for Tuya - Smart Home Freezer Thermometer with App Alert 2025
$44.95 Save $44.05 RRP: $89.00
WiFi Temperature Sensor Tuya Thermometer Detector Digital Display Home Smart Life App Alert Freezer Water Alarm EU Plug Edition 2025
$74.00 Save $75.00 RRP: $149.00
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
$40.95 Save $43.05 RRP: $84.00
Heavy Duty Wired Alarm Garage Door Magnetic Contacts Switch Sensor NC
$17.95 Save $25.00 RRP: $42.95
Smart Door Sensor - WiFi Wireless Window Sensor Real-Time Message Notification Compatible with Alexa Google Assistant
$30.95
4 Pcs Tuya WiFi SOS Emergency Button Wireless One Key Call Help Home Elderly Children Security Protection B
$64.00
8pcs New Longer Door Window Wireless Burglar Alarm With Magnetic Sensor Home Safety Wireless Longer System Security Device-Yvan
$24.95 Save $12.00 RRP: $36.95
Home Security Magnetic Reed Switch - Wired Rolling Door Contact Sensor
$35.95
Negative Battery Cable Av6n-10c679- For Focus Escape Transit 2012-2018 Battery Management System Sensor Av6n-10c679-gb
$59.00
Elektroweb Sensor Magnetic Contact Opening Sensor Mc-38 No
$16.95 Save $8.00 RRP: $24.95
Tuya Wifi Door Window Sensor Smart Anti-Theft Alarm Real-Time Alerts App Control Smart Home Security
$13.95 Save $7.00 RRP: $20.95
Infrared Photoelectric Sensor Beam 12v/24v Outdoor Waterproof Infrared Sensor Gate Signal for Slide Gate Opener Safety
$14.95 Save $7.00 RRP: $21.95
TUYA WIFI Temperature Sensor APP Remote Monitor Tuya Waterproof Temperature Sensor 2.4G WiFi Smart Home 1M
$18.95
Glass Break Alarm Glass Door Window Vibration Sensor 130db Glass Breaking Alarm Window Sensor
$41.95 Save $62.05 RRP: $104.00
Brake Wheel Speed Sensor 4013251 Quick Response Real Time Monitoring Precise Adjustment Replacement for Polaris
$119.00 Save $130.00 RRP: $249.00
Compact Loud Volume Car Door Alarm Sensor Alert for SUVs
$69.00
6X Wired Dual Beam Photoelectric Infrared Sensor Barrier Detector 100M Alarm Tamper Alarm for Park Burglar Alarm System
$119.00 Save $60.00 RRP: $179.00
WiFi Vibration Sensor with RealTime Alerts Sensitivity and Long Battery Life for Tuya Devices
$27.95 Save $13.00 RRP: $40.95
调用 AI 接口失败: Connection error. Ref: 6291
$27.95 Save $13.00 RRP: $40.95
调用 AI 接口失败: Connection error. Ref: 6822
$29.95 Save $15.00 RRP: $44.95
ZigBee Vibration Sensor Smart Home Door Window Alarm with RealTime Alerts and Long Standby
$23.95 Save $12.00 RRP: $35.95
W100 Smart WiFi Bridge Gateway and Door Sensor Set for Smart Lockboxes, APP Control for Home Office
$79.00 Save $5.00 RRP: $84.00
Inductive Cylindrical LongRange Proximity Sensor With Wire Cable Detection Distance
$69.00 Save $30.00 RRP: $99.00
1-pack smart door and window sensor for home security
$50.95 Save $28.05 RRP: $79.00
Case Pack Smart Door and Window Sensors for Home Security, Size 2
$50.95 Save $28.05 RRP: $79.00
Water Leak Sensor Wireless, 5 X 5 X 1.6 Cm, White, Indoor Outdoor Use, Sturdy Alarm, Decorative Leak Monitor
$31.95 Save $16.00 RRP: $47.95
Automated Gate Safe Infrared Detector Sensor for Swing Sliding Garage Gate Door Safety Infrared Beam Sensor Photocells
$14.95 Save $69.05 RRP: $84.00
120DB Door Window Alarm Magnetic Sensor Burglar Alert for Personal Home Garage Apartment Security
$17.95 Save $41.05 RRP: $59.00