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Shop the best prices on 10,938 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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1,089 - 1,120 of 3,200
Door and Window Alarm, Door/Window Sensor, 120dB Touch Sensor Door Handle Anti-theft Alarm Vibration Window Burglary Alert Home Security
$35.95
Smart Door Window Sensor 2.4G WiFi Magnetic Open Close Detector Home Burglar Alarm for TUYA
$14.95 Save $5.00 RRP: $19.95
RF Detector Privacy Protection High Sensitivity Portable Camera Finder GPS Tracking Device Detector
$129.00 Save $40.00 RRP: $169.00
10 Sets Magnetic Reed Switch DC100V NC Recessed Wired Door Window Sensor Switch for Alarm System MR‑38
$18.95 Save $7.00 RRP: $25.95
5 Sets Recessed Magnetic Switch DC100V 10W NO NC Door Sensor Window Reed Switch for Alarm System Access Control
$22.95 Save $7.00 RRP: $29.95
10 Sets Recessed Wired Security Window Door Sensor DC100V Embedded Window Reed Switch for Alarm System
$26.95 Save $14.00 RRP: $40.95
2Pcs Single Infrared Beam Sensor IP55 Protection Automatic Infrared Photocell Sensor Alarm for Gate Opener
$16.95 Save $7.00 RRP: $23.95
Infrared Beam Sensor Outdoor Waterproof Single Beam Infrared Beam Alarm for Security System Factory
$27.95 Save $8.00 RRP: $35.95
8pcs New Longer Door Window Wireless Burglar Alarm With Magnetic Sensor Home Safety Wireless Longer System Security Device-yvan
$21.95 Save $27.00 RRP: $48.95
PB-67R Intelligent Wireless Door Window Sensor with Emergency Button
$13.95
Remover Clothing Tag Remove/ Tag Detacher
$21.95
Pack Zer Door Alarm, Ow Alarm, 3/15/30/60 Seconds Wireless Frid Alarm, 4 In 1 Door Sensor Door Door Open Alarm Loud108db
$34.95 Save $12.00 RRP: $46.95
Tuya Door Window Sensor Wifi, Open Close Detector Home Security System, Smart Life Remote Control unbrand
$34.95 Save $12.00 RRP: $46.95
for 117 25700071 Tattletale Magnetic Switch
$129.00
90db Wireless Security Alarm Door Window Sensor Magnetic Opening Sensor Enhanced 5Pcs
$13.95
Rc Accessories Safe Entry Sensor Wifi Door Sensor App Door Window Alarms Door Sensor
$24.95 Save $49.05 RRP: $74.00
1Pcs Vibration Detector Door Window Vibration Alarm Sensor Home el High Decibel Vibration Induction Anti-Theft Alarm
$13.95
Magnetic Switch Alarm Sensor Overhead Garage Door Contacts with L Bracket
$16.95
Door Window Open Alarm, Wireless Remote Control Magnetic Sensor
$16.95
4in1 Multi-Functional Door Magnetic Alarm Touch Button Door and Window Alarm Displacement Alarm Sensor 125dB
$13.95 Save $6.00 RRP: $19.95
Wireless magnetic alarm for windows - 10 pack door sensor for home security
$54.00 Save $50.00 RRP: $104.00
Wireless security alarm for pool doors and windows with magnetic sensor
$50.95 Save $43.05 RRP: $94.00
Vibration Detection Sensor for Home Security, Compact Design, Compatible With App, Alerts
$33.95 Save $17.00 RRP: $50.95
Door and Window Sensor for Home Security, Compatible with Alarm System, Requires Alarm Host
$20.95 Save $11.00 RRP: $31.95
Parking Assistant Alarm Wall Mounted Garage Parking Sensor with 3-Color LED Traffic Light for Timely Detection and Flashing Signal
$89.00 Save $50.00 RRP: $139.00
WiFi Door Alarm Sensor With Magnetic Sensor Zigbee Compatible Tuya Smart Home Security Door Sensor
$69.00 Save $35.00 RRP: $104.00
Hearthxy Solar Motion Alarm - Solar Motion Alarm Sensor With Sound - 129db Sound Security Siren 4 Outdoor Sensor Alarm Modes For Home Farm Barn House
$33.95 Save $16.00 RRP: $49.95
Door Opening Sensor Wireless Time Delay Door Alarm Door Sensor Door And Window Security Alarm Home
$26.95
Door Window Alarm, Wireless Personal Security Alarm Magnetic Sensor Burglar Alert Door and Window Op
$41.95 Save $37.05 RRP: $79.00
2025 Latest Model Wireless 125dB Door Stop Alarm Lock Vibration Sensor
$15.95 Save $11.00 RRP: $26.95
2 DOF Pan and Tilt with Mg995 Servos Sensor Mount for Arduino Robot Set Car Plane DIY
$19.95 Save $10.00 RRP: $29.95
High quality Tuya WiFi Smart Door and Window Sensor Alarm Sensor Support Alexa
$37.95 Save $21.05 RRP: $59.00