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Shop the best prices on 9,810 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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129 - 160 of 9,810
Wifi Smart Door Window Sensor Alarm Detector Security
$25.95 Save $13.00 RRP: $38.95
Wireless Electric Doorbell Kit With 1 Receiver And 1 Pir Motion Detector Sensor Alarm Visitor Security Alarm With Music Melody
$47.95 Save $26.05 RRP: $74.00
Smart Wifi Door Window Sensor, Security Magnetic Sensor Closed Detector
$46.95 Save $22.05 RRP: $69.00
SQLX 10pcs Magnetic Reed Switch Door Window Security Alarm System Normally NC NO Contact Switches for Enhanced Home Safety A Hk
$8.95 Save $16.00 RRP: $24.95
Magnetic Remover Clothing Hard Tag Remove/security Tag Detacher
$24.95
Door and Window Alarm, 2 Remote Controls, 130dB Siren, Adjustable Volume, 5 Function Modes Alarm, Magnetic Security Sensor, Wireless Home Alarm for Ho
$33.95
1 Set NO NC Magnetic Door Window Contact Sensor Alarm Reed Switch Fit for GPS Alarm or Other Device with 2 Screws White
$16.95
Surface Mount Wired Nc Door Contact Sensor Alarm For Door Window Cabinets 10pcs
$19.95 Save $13.00 RRP: $32.95
Outdoor Door Window Magnetic Alarm Wireless Sensor Waterproof Monitor Burglar Anti Theft Home Securi
$32.95 Save $8.00 RRP: $40.95
Zigbee Human Presence Sensor with Anti-Theft Warning for Smart Home
$31.95
DC12V Infrared Photocell Beam Sensor Automatic Gate Door Garage Shutter Barrier Detector for Door
$26.95 Save $92.05 RRP: $119.00
Infrared Beam Detector Burglar Ir Alarms Sensor Alarm System
$449.00 Save $750.00 RRP: $1,199.00
Zigbee Door Sensor Wireless Magnetic Window Open Closed Alarm Detector Works Zigbee2MQTT for Need Gateway
$11.95
Zigbee Smart Rain Sensor for Outdoor Wireless Rain Detection
$28.95 Save $35.05 RRP: $64.00
M12 52 Musics Wireless Sensor Welcome Doorbell Shop Entry Detector Alarm with 2 Transmitter+1
$54.00 Save $65.00 RRP: $119.00
M12 52 Musics Wireless Sensor Welcome Doorbell Shop Entry Detector Alarm with 1 Transmitter+1
$43.95 Save $45.05 RRP: $89.00
SmartLife Key Finder | Battery Powered | 1x CR2032 | Batteries included | Bluetooth® verision: 4.0 Nedis
$30.95 Save $4.00 RRP: $34.95
Fridge and Freezer Door Alarm with Open Reminder After 60 Seconds or More
$39.95 Save $34.05 RRP: $74.00
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
$22.95 Save $36.05 RRP: $59.00
For Tuya Zigbee Light Sensor Smart Home Illumination Sensor App Linkage Control Brightness Detector
$74.00 Save $75.00 RRP: $149.00
Magnetic Clothing Security Tag Remover, Hard Security Tag Detacher For Retail Stores unbrand
$12.95 Save $7.00 RRP: $19.95
SONOFF DW2 RF Wireless Door Window Sensor Detector Door Opening Sensor eWeLink App Smart Home Security Alexa Assistant
$25.95 Save $21.00 RRP: $46.95
Camera Detector Vibration Alarm Portable High Accuracy IR Detector Scanner for Hotel
$22.95 Save $13.00 RRP: $35.95
Tuya Zigbee Button Wireless Smart Scene Switch Automation Scenario Controller Smart Life Gadgets Required Zigbee Gateway Need
$16.95
Infrared Sensor Wireless Detector Gsm High Sensitive Security Alarm With Eu Plug For Store Warehouse
$159.00 Save $30.00 RRP: $189.00
Tuya Smart ZigBee Door Sensor Door Open / Closed Detectors App Notification
$64.00 Save $55.00 RRP: $119.00
NEW Tuya Door Sensor Wifi Window Shatter Sensor Door Window Magnetic/shock Detector
$34.95 Save $34.05 RRP: $69.00
Magnetic Door Window Contact Sensor Alarm Security Home Burglar Alarm Magnetic Switch Normally Closed Easy to Install Multicolor
$14.95
E3Z-R61 NPN Photoelectric Beam Sensor with Mounting Bracket
$16.95 Save $21.00 RRP: $37.95
Security Window & Door Alarm Sensors(no Sound), Wireless Connection Tuya App2.4G , Not 5G, Burglar Alarm for Kids Safety Home Security,2 Pack, FJ122-H
$64.00 Save $30.00 RRP: $94.00
Security Window & Door Alarm Sensors(no Sound), Wireless Connection Tuya App2.4G , Not 5G, Burglar Alarm for Kids Safety Home Security,3 Pack, FJ122-H
$94.00 Save $45.00 RRP: $139.00
25-26 Wifi Temperature Sensor Monitoring Bluetooth Wireless Thermometer Hygrometer Remote Monitor Alerting App
$69.00 Save $70.00 RRP: $139.00