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Security System Sensors

Shop the best prices on 285 great value security system sensors. Shopping for security system sensors is easy with Fruugo, with SALE discounts, offers and savings on Yale and Smart Things. Buy security system sensors online safely with Fruugo, with secure payment and fast shipping to United States.

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161 - 192 of 285
Ultrasonic Distance Sensor Pack of 2 SR04T Modules for Distance Measurement, Obstacle Avoidance, and Industrial Control
$26.95 Save $13.00 RRP: $39.95
Wireless Door Window Alarm with Magnetic Contact Sensor for Remote Home Isolation Monitoring White
$28.95 Save $14.00 RRP: $42.95
Magnetic Switch NC Normally Closed Waterproof Micro Alarm For Door Window Sensor, High Precision Electronic Component
$25.95 Save $13.00 RRP: $38.95
Intelligent Door Sensors with Remote Control and Voice Command, ABS Window Sensors for Family Security
$209.00 Save $100.00 RRP: $309.00
PM2.5 Sensor High-Precision Dust Sensor Compatible with PMS3003 Environmental Sensor D3 for Accurate Air Quality Monitoring
$79.00 Save $40.00 RRP: $119.00
Hidden door sensor detector window security for home security burglar alarms with low false alarms
$14.95 Save $8.00 RRP: $22.95
Sensor Alarm Dual Beam Photoelectric Infrared Detector for Home Security System, Weatherproof, Indoor/Outdoor Use
$59.00 Save $25.00 RRP: $84.00
Wireless Vibration Alarm Door Window Open Alarm 120dB Security Sensor for Home Apartment Garage Hotel Anti-Theft System
$17.95 Save $9.00 RRP: $26.95
Door Window Alarm Sensor Set for Home Safety, Elderly Care, Magnetic Entry Security Detector
$14.95 Save $8.00 RRP: $22.95
2 Pack Door Alarm and Window Sensor System with Infrared Detection for Home Office Security
$16.95 Save $8.00 RRP: $24.95
Wired Door Window Sensor Pair with 330mm Cable for Home Alarm System N.C Magnetic Switch
$14.95 Save $8.00 RRP: $22.95
Bett Sensor Alarm for Seniors Intelligent Wireless Alarm Bell, EnergyEfficient Call Device for Elderly Adults, Children, and Bedwetters
$36.95 Save $22.05 RRP: $59.00
Wireless Door Alarm Sensor with 130dB Output, 4 Alarm Modes for Comprehensive Home Security
$22.95 Save $11.00 RRP: $33.95
Smart Zigbee Door Sensor, Wireless Magnetic Alarm for Home Office, Smart App Compatible, Easy Installation
$23.95 Save $12.00 RRP: $35.95
433MHz Door Magnetic Contact Wireless Sensor Detection Switch for Home Office Alarm Security Wireless Door Sensor
$18.95 Save $10.00 RRP: $28.95
Smart Door/Window Sensor Wireless Real Time Alarm Alexa Google Assistant Compatible Open Contact Sensor
$19.95 Save $10.00 RRP: $29.95
Tuya ZigBee Intelligent Light Detector Temperature & Humidity Sensor with LED Display Support APP Control Home Linkage Compatible with Alexa Home
$28.95 Save $12.00 RRP: $40.95
Door Window Sensor Detector Wireless Open Contact Sensor WiFi APP Timer Magnet Back Adhesive Sharing Security Sensor Alarm for ZigBee for Tuya
$12.95 Save $6.00 RRP: $18.95
Solar Animal Repeller Alarm Long Range Sound Light Outdoor Infrared Sensor Alarm with Remote Control for Orchard 1W 5V
$29.95 Save $7.00 RRP: $36.95
Door Contacts 5-Pack Mini White Recessed NC Window Sensors Magnetic Reed Switch 3/4-Inch DCS Switches For Access Control
$22.95
Door and Window Sensors WiFi,Smart Door Open/Closed Detectors for Home Security 2pack(Battery not Included)
$28.95 Save $15.00 RRP: $43.95
Door Magnetic Contact Wireless Sensor Detection Switch For Home Garage Security System Wireless Door Sensor
$15.95 Save $7.00 RRP: $22.95
Wireless Door And Window Sensors With App Alerts Compact Magnetic 2-Pack For Enhanced Security Monitoring
$39.95 Save $19.05 RRP: $59.00
Freezer Door Alarm With Intelligent Sensor, Voice Alarm, Ajar Reminder For Home, Storefront
$21.95 Save $10.00 RRP: $31.95
Refrigerator Door Alarm Open-Door Alert Compact Sensor With Voice Alarm For Home, Office, School, And Rooms With Windows
$24.95 Save $12.00 RRP: $36.95
Smart Home Door and Window Sensors for ZigBee, Easy Install, Wireless Connectivity, Compatible with ZigBee Hubs
$33.95 Save $16.00 RRP: $49.95
Kuehlschranktuer Alarm Compact Fridge Door Sensor With Voice Alert For Home Office School And Rooms With Windows
$24.95 Save $12.00 RRP: $36.95
Door Alarm On Opening, Freezer Sensor, Voice Alert, Window And Room Sensor For Home Office School Security
$24.95 Save $12.00 RRP: $36.95
Gefriertur Alarm Smart Door Sensor With Voice Alarm For Window, Room, Store, Home, School, Business Security
$74.00 Save $35.00 RRP: $109.00
Wireless ZigBee Sensors For Door And Window Security Alerts, ZigBee Compatible, Home Automation
$24.95 Save $12.00 RRP: $36.95
Kuhlschranktuer Alarm Open Door Alarm Voice Alarm Sensor For Refrigerator Door Window And Room Security
$24.95 Save $12.00 RRP: $36.95
Refrigerator Door Alarm Freezer Alarm, Compact Sensor With Voice Alert For Home, Office, School, And Rooms With Window
$31.95 Save $16.00 RRP: $47.95