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Security System Sensors

Shop the best prices on 10,815 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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737 - 768 of 3,200
2025 Wireless Door bell Motion Sensor Home Security Door open alarm Entry Chime
$34.95 Save $34.05 RRP: $69.00
Door Alarm, Door Opening Detector With Powerful Siren, Magnetic Wireless Door And Window Alarm(pack Of 1) 26s
$36.95 Save $37.05 RRP: $74.00
2026 Wireless Infrared Gate Beam Sensor Anti Theft Alarm IP55 Waterproof for Station Automatic Door
$64.00 Save $65.00 RRP: $129.00
2026 Multipurpose 24GHz Human Sensitivity Module Suitable for Indoor Automation and Security High Performances Accessory
$17.95 Save $17.00 RRP: $34.95
2pcs Infrared Beam Detector Burglar Ir Alarm Sensor Automatic Door Light Sensor Alarm System 2025
$36.95 Save $37.05 RRP: $74.00
2pcs Security 100db Wireless Door&Window Alarm Vibration Sensor Home
$52.95 Save $96.05 RRP: $149.00
Tuya Zigbee Door Sensor Window Sensor Wireless Smart Door Sensor Alarm Support Home Security&Automation
$19.95 Save $10.00 RRP: $29.95
Wireless Door Contact Sensor 433MHz, Magnetic Contact Wireless Sensor Detector Switch for Doors Window Home Garage Alarm Security
$37.95 Save $81.05 RRP: $119.00
2pcs Security 100db Wireless Door&Window Alarm Vibration Sensor Home
$52.95 Save $96.05 RRP: $149.00
WiFi Door Sensor, Tuya Smart Wireless Door & Window Sensor, Real-Time Alarm Compatible with Alexa and Google Assistant
$25.95 Save $33.05 RRP: $59.00
Wireless Home Doors Windows Security Entry Alarm System Pack 6
$26.95
Magnetic Clothing Hard Tag Remove Security Detacher - Easy and Efficient Solution
$14.95 Save $69.05 RRP: $84.00
2Pack Freezer Door Alarm,3/15/30/60 Seconds Wireless Fridge Alarm,4 in 1 Door Sensor Doorbell Door Open Alarm Loud108dB
$29.95
Magnetic Door Window Contact Sensor Alarm Wired-Security Home Burglars Alarm NO/NC Magnetic Switchs Easy to Install
$19.95 Save $2.00 RRP: $21.95
Automatic Infrared Beam Detector For Home Security Alarm System - 2pcs unbrand
$32.95 Save $17.00 RRP: $49.95
10pcs Magnetic Switch Door Window Security Alarm System B
$19.95 Save $6.00 RRP: $25.95
Door Window Alarm Home Hotel Dual Remote Control Sensor Alarm Anti Theft Security Alarm
$29.95 Save $34.05 RRP: $64.00
Door Alarm, Window Security Alarm, 3/15/30/60 Seconds Wireless Fridge Alarm, 4 In 1 Door Sensor Doorbell Door Open Alarm Loud108db
$18.95 Save $40.05 RRP: $59.00
Gps Tracking Detector 4 Levels Sensitivity Bug Detectors Anti-positioning Listening Device Finder For Hotels Travel Office Car
$64.00 Save $35.00 RRP: $99.00
100 Decibel Home Burglar Alarm Doorbell Vibration Sensor Door And Window Siren Ultra-thin Round Shape Wit
$36.95
Timing Arm Disarms Intelligent Door Alarm 100dB Sound Small Window Sensorings Adjustable Volumes Alarm for House Offfice
$45.95
Sm2 Wlte Ea 2 Channel 4g Sms Alarm Controller With App Web Temperature Humidity Linkage Sms Power Outage Alarm Eu Plug 100240v
$139.00
Wireless Door and Window Vibration Sensor Alarm 125dB Glass Breakage Anti-Theft Sensor, Easy Instal
$14.95 Save $1.00 RRP: $15.95
Ultrasonic Ranging Alarm Kits LED Display Design of Reverse Alarm DIY Kit Ultrasonic Sensor Module
$15.95 Save $8.00 RRP: $23.95
Garage Door Bracket for Ring Alarms Contact Sensors(2nd Gen), Easy-to-Install Garage Door Safety Ac
$11.95 Save $2.00 RRP: $13.95
Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Sensor Alarm White- (10 Sets)
$15.95
Zigbee Door Sensor Wireless Magnetic Window Open Closed Alarm Detector Works Zigbee2MQTT for Need G
$12.95 Save $3.00 RRP: $15.95
2026 NEW Smart Wifi Door Magnetic Detector Wifi Door and Window Sensor Door Magnetic Switch Alarm Anti-Theft
$28.95 Save $20.00 RRP: $48.95
Anti-Theft Refrigerator And Freezer Alarm, Door Window Left Open, Reminders At 30 Seconds Edition 0830
$24.95 Save $34.05 RRP: $59.00
2026 new Garage Door Bracket for Contact Sensors 2nd Gen (Sensor Not Included), Garage Door Security Accesso
$21.95 Save $18.00 RRP: $39.95
10 Pack Window Alarm Wireless Door Magnetic Sensor Alarm For Home Security System, Pool Door Alarm
$54.00 Save $135.00 RRP: $189.00
Tuya ZigBee Light Sensor Luminance Sensor Beam Sensor Real-Time Luminance Detection Smart Home Automation App Control
$18.95