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Security System Sensors

Shop the best prices on 11,485 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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417 - 448 of 3,200
10pcs Surface Mount Wired NC Door Contact Sensor Alarm for Door Window Cabinets
$24.95 Save $26.00 RRP: $50.95
Freezer Door Alarm with Adjustable Delay (3-60s), Wireless Fridge Alarm, 4-in-1 Door Sensor Chime for Open Door Safety
$42.95 Save $56.05 RRP: $99.00
Vibrating Door Window Burglar Alarm 8.7x5.6x2.3cm Anti-Theft Security Sensor
$31.95 Save $37.05 RRP: $69.00
Brake Wheel Speed Sensor 4013251 Quick Response Real Time Monitoring Precise Adjustment Replacement for Polaris
$129.00 Save $70.00 RRP: $199.00
Tuya ZigBee Smart Vibration Sensor for Door Window Security Alarm & Real-Time Monitoring
$16.95 Save $26.00 RRP: $42.95
24pcs Door And Window Alarm Electronic Alarm Window Alarm Sensor Anti-burglary Window Security Alarm
$59.00 Save $120.00 RRP: $179.00
10 Pack Window Alarm Wireless Door Magnetic Sensor Alarm For Home Security System, Pool Door Alarm
$59.00 Save $30.00 RRP: $89.00
Tuya ZigBee Intelligent Light Detector Temperature & Humidity Sensor with LED Display Support APP Control Home Linkage Compatible with Alexa Home 2025
$59.00 Save $60.00 RRP: $119.00
26-27 Anti-Theft Refrigerator And Freezer Alarm, Door Window Left Open, Reminders At 30 Seconds
$13.95 Save $14.00 RRP: $27.95
Infrared Beam Detector Burglar Ir Alarms Sensor Alarm System 25-26
$17.95 Save $17.00 RRP: $34.95
100m Sensor Alarm Dual Beam Photoelectric Infrared Detector For Home Security,black
$79.00 Save $60.00 RRP: $139.00
1 Pair Automated Gate Safe Infrared Detector Sensor/ Swing /Sliding/Garage Gate / Door Safety Infrar
$17.95 Save $10.00 RRP: $27.95
Freezer Door Alarm, Safety Window Alarm, 3/15/30/60 Seconds Adjustable Delay Wireless Fridge Alarm, 4-In-1 Door Sensor Chime Door Open Alarm Loud 108d Elrachen
$48.95 Save $50.05 RRP: $99.00
Magnetic Sensor Magnetic Switch Sensor Window Door Alarm Security Detector Wired Contact Magnetic Wide Gap for Home Garage-Yvan
$14.95 Save $11.00 RRP: $25.95
EAS Security Tag Remover Hook, Handheld Detacher Key for Clothing Retail Stores well
$19.95 Save $21.00 RRP: $40.95
Intelligent PIR presence sensor anti-false alarm design home security large-scale dynamic monitoring
$33.95
Door And Window Alarm, Wireless Door And Window Detectors With Remote Control And Batteries, Anti-intrusion Anti-theft Magnetic Sensor For Home And Ki
$26.95 Save $47.05 RRP: $74.00
Wireless Electric Doorbell Kit With 1 Receiver And 1 Pir Motion Detector Sensor Alarm Visitor Security Alarm With Music Melody
$22.95 Save $51.05 RRP: $74.00
PB-68R Intelligent Wireless Door Window Sensor
$13.95
12v Dual Wire Pir Motion Detector, Infrared Sensor Alarm, Home Security System Alarm For Shop/house/factory.
$31.95
Tracking Module 8 Channel Infrared Detection Sensor PCB 8bit Detector Hunt Board
$10.95 Save $13.00 RRP: $23.95
Universal Remote Control Multi-directional Intelligent Professional Low Power Consumption Easy Connection Voice Control 2.4Ghz Smart WiFi IR Remote Co
$20.95 Save $33.05 RRP: $54.00
Magnetic sensor alarm for home security - 10 pack wireless window and door alarm
$25.95 Save $12.00 RRP: $37.95
Brake Wheel Speed Sensor 4013251 Quick Response Real Time Monitoring Precise Adjustment Replacement for Polaris
$119.00 Save $70.00 RRP: $189.00
1/4 Inch Ring Alarm Magnet Riser,10 Pack Mount to Any Doorway, Window, and Entryway,Ring Sensor/Magnet Not Included
$30.95 Save $18.00 RRP: $48.95
Wifi Smart Door Detector Door Open/closed Detectors Wifi Home Alarm
$33.95
Tuya APP Door Open/Closed Detectors Security Protection ZigBee Alarm Detector 2.4GHz Wireless Window Door Gate Sensor
$22.95
Anti-Theft Refrigerator And Freezer Alarm, Door Window Left Open, Reminders At 30 Seconds 0830 szbym
$19.95 Save $39.05 RRP: $59.00
Wireless Window/Door Open 52 Chime Entry Security Alarm Doorbell Magnetic Sensor
$64.00 Save $5.00 RRP: $69.00
Wireless Magnetic Sensor Door Entry Alarm with for Home Security
$8.95 Save $3.00 RRP: $11.95
Contact Sensor Bracket for Garage Doors, Security Accessory for 2nd Gen Sensors (Sensor Not Included)
$15.95 Save $18.00 RRP: $33.95
2X E3Z-R61 NPN Photoelectric Beam Sensor with Bracket Mirror Reflection Photoelectric Switch Sensor 2m Range
$17.95