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Shop the best prices on 11,090 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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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 $11.00 RRP: $33.95
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
$19.95 Save $9.00 RRP: $28.95
Anti-Thief Wireless Door Alarm Abnormal Door Opening Immediate Alarm
$10.95 Save $6.00 RRP: $16.95
Wireless Home Doors Windows Security Entry Alarm System Pack 6
$29.95
Passage Alarm, Shop Bell, Wireless Alarm System With Motion Detector, Access Gift
$36.95
Compactly Air Quality Sensors Module Gas Sensors Module with Fast Response Low Power Consumption for Intelligent Home
$14.95
Tuya Zigbee Rain Sensor 2-in-1 Light Detector Rainwater Detector
$26.95 Save $14.00 RRP: $40.95
433mhz Door Window Alarm Sensor 25-26
$64.00 Save $65.00 RRP: $129.00
25-26 2025 Latest Model Aqara Light Sensor T1 Zigbee 3.0 Brightness Sensor Smart Home
$79.00 Save $80.00 RRP: $159.00
25-26 Refrigerator Freezer Door Alarm with 60-Second Alert, Adjustable Volume & Open Sensor
$31.95 Save $32.05 RRP: $64.00
25-26 NEW Tuya Door Sensor Wifi Window Shatter Sensor Door Window Magnetic/shock Detector
$48.95 Save $50.05 RRP: $99.00
25-26 Tuya Zigbee Smart Door Magnet Door And Window Sensor Rechargeable Wireless Smart Door And Window Se
$59.00 Save $60.00 RRP: $119.00
25-26 2025 Latest Model Aqara Light Sensor T1 Zigbee 3.0 Brightness Sensor Smart Home
$84.00 Save $85.00 RRP: $169.00
25-26 Magnetic Door Switch Recessed Wired Contact Sensor for Window DC100V NC
$18.95 Save $19.00 RRP: $37.95
25-26 Itead SONOFF DW2 WiFi Smart Door Window Sensor Door Open/Closed Detectors
$179.00 Save $170.00 RRP: $349.00
Pack Freezer Door Alarm, Window Security Alarm, 3/15/30/60 Seconds Wireless Fridge Alarm, 4 In 1 Door Sensor Doorbell Door Open Alarm Loud108db
$20.95 Save $11.00 RRP: $31.95
DOBERMAN SE-0119 Household Anti-theft Wireless Remote Control Door Magnetic Sensor Alarm
$44.95
DOBERMAN SE-0701 Oval Household Anti-theft Door and Window Magnetic Spring Sensor Super Loud Simple Alarm
$16.95
Home Security Wireless Remote Control Door Window Siren Magnetic Sensor Alarm Warning, 1 Remote Controller + 3 Magnetic Sensors
$35.95
Smart Water Leak Detector Wifi for TUYA App Alarm Home Shop Office Warehouse School Security Device
$26.95 Save $32.05 RRP: $59.00
Smart Wireless Waterproof Doorbell Alarm Kit 2 Sensors 110-240V US
$38.95 Save $20.05 RRP: $59.00
Utp 4 Channel Passive Video Balun Transceiver
$16.95 Save $14.00 RRP: $30.95
1/2pcs Wireless Door & Window Magnetic Alarm Sensor Home Security Safety Anti-theft Remote Control
$94.00 Save $55.00 RRP: $149.00
4pcs Door Window Sensor Zigbee Wireless Connection Smart Mini Door Sensor Work for Aqara Gateway Mi Home HomeKit
$119.00 Save $50.00 RRP: $169.00
5pcs 433MHz Wireless Vibration Glass Break Detector, Adjustable Sensitivity, Compatible with Alarm Systems unbrand
$29.95
433MHz Wireless Magnetic Door & Window Sensor Home Security Alartor System Burglar Alartor Kits unbrand
$21.95
Door Open Alarm Smart Door Window Sensor Smart Home Door Detectors Door and Window Burglar Alarms unbrand
$11.95
3pcs 433MHz Wireless Vibration Glass Break Detector, Adjustable Sensitivity, Compatible with Alarm Systems Black unbrand
$20.95
DC 12v 24v Infrared Sensor Detector Door Safety Photocell Beam Sensor for Automatic Door unbrand
$18.95
Tuya ZIGBEE Wall Emergency Button APP Smart Home Sensor 8x6 ZigBee Intelligent Remote Alarm
$30.95 Save $14.00 RRP: $44.95
1 set Magnetic Door Sensor Alarm High-Security Door Window Alarm Plastic Suitable for Residential & Commercial Use
$36.95
E3Z-R61 NPN Photoelectric Beam Sensor with Bracket Edition 1210
$8.95 Save $28.00 RRP: $36.95