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Shop the best prices on 11,307 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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1,729 - 1,760 of 3,200
25-26 Infrared Beam Detector Burglar Ir Alarms Sensor Alarm System
$26.95 Save $26.00 RRP: $52.95
25-26 Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$20.95 Save $21.00 RRP: $41.95
Signal Detector Bug Finder LED Infrared Camera Scanner Rechargeable Detecting Tool 5V for Home Hotel 25-26
$28.95 Save $30.05 RRP: $59.00
25-26 WiFi Door Alarm Sensor with 80dB Sound & Visual Alerts, Tuya App Compatible, Push Notifications for Home & Garage Security
$27.95 Save $31.05 RRP: $59.00
25-26 Door Alarm, Door Opening Detector With Powerful Siren, Magnetic Wireless Door And Window Alarm(pack Of 1) new
$40.95 Save $43.05 RRP: $84.00
Door Alarm, Door Opening Detector With Powerful Siren, Magnetic Wireless Door And Window Alarm(pack Of 1) new SZRH A-G 25-26s
$44.95 Save $44.05 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 WiFi Smart Door Sensor Wireless Magnetic Door Window Open Closed Detectors 26s
$13.95 Save $14.00 RRP: $27.95
2Pcs Infrared Beam Detector, 20m Waterproof Security Sensor for Door/Window Burglar Alarm System 26s
$21.95 Save $22.00 RRP: $43.95
Refrigerator Door Alarm Open Alarm with Adjustable Voice Notifications Window Sensor, Voice Warning Door Lock Reminder for Garage Cellar 26s
$18.95 Save $19.00 RRP: $37.95
Tuya WiFi Smart Door Sensor Wireless Magnetic Door Window Open Closed Detectors 26s
$52.95 Save $51.05 RRP: $104.00
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
Pack freezer door alarm, window security alarm, 3/15/30/60 seconds, 4 in 1 door sensor p
$26.95
Wired-Door Sensor Magnetic Switches Home Antitheft Alarm Home Door Window Entry Warning Switches Dustproof Waterproof
$21.95
10pcs DC 12V 1 Channel Relay Board Module High Level Trigger for Arduino
$34.95 Save $44.05 RRP: $79.00
Tuya Wifi Light Sensor Smart Home Illumination Sensor App Linkage Control Brightness Detector Illumi unbrand
$17.95 Save $10.00 RRP: $27.95
Door Window Magnetic Sensor Anti-entry Security Alarm
$19.95
Door Alarm Door Chime Wireless Window Magnetic Burglar Sensors Loud Alert Security Alarm For Home Cabinet
$59.00
ZigBee Temperature Sensor Alarm Digital Ambient Thermometer Tuya Smart Life App Remote Control Home Automation EU PLUG
$59.00
ZigBee Temperature Sensor Alarm Digital Ambient Thermometer Tuya Smart Life App Remote Control Home Automation EU PLUG
$59.00
Tuya ZigBee Smart Door and Window Sensor Burglar Magnetic Sensor with Scene Interaction Button APP Remote Control
$23.95
Infrared Beam Detector Burglar Ir Alarms Sensor Alarm System 25-26
$21.95 Save $22.00 RRP: $43.95
6-pack wireless anti-theft door and window alarm for home security, diy magnetic sensor
$31.95 Save $10.00 RRP: $41.95
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
$84.00 Save $20.00 RRP: $104.00
Security Window & Door Alarm Sensors(no Sound), Wireless Connection Tuya App2.4G , Not 5G, Burglar Alarm for Kids Safety Home Security,5 Pack, FJ122-H
$129.00 Save $40.00 RRP: $169.00
Light Sensor Cable DC 5V 12V USB Auto-on Night Light for Home Security
$6.95 Save $3.00 RRP: $9.95
Sonoff DW2-WiFi Wireless Security Window Door Sensor Home Sercurity Alarm Work With eWeLink APP Support Sonoff Devices IFTTT 25-26
$189.00 Save $180.00 RRP: $369.00
Doors and Windows Alarm Home Safety Anti-theft Wireless Door Magnetic Sensor 110dB Volume Refrigerator Window Open Reminder
$40.95 Save $9.00 RRP: $49.95
High Sensitive Vibration Detector Earthquake Alarms with LED Lighting Door Home Wireless Electric Car Alarm
$21.95 Save $10.00 RRP: $31.95
Alarm Head Protector Protection 2Pcs Silver Iron Cover
$17.95 Save $17.00 RRP: $34.95
WiFi Door Window Sensor APP Smart Home Security Protection Door Open Closed Detector for Alexa Yandex unbrand
$14.95 Save $10.00 RRP: $24.95
Tuya Smart WiFi Door Sensor 80dB Sound Window Sensor
$20.95 Save $15.00 RRP: $35.95