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Security System Sensors

Shop the best prices on 11,351 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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1,857 - 1,888 of 3,200
Smart Home Zigbee Temperature and Humidity Sensor Remote Control SmartLife Work with Alexa Google Assistant
$17.95 Save $10.00 RRP: $27.95
Tuya Zigbee Illuminance Sensor IP67 Waterproof Light Sensor Brightness Detection Real Time App Control Sensor
$25.95 Save $16.00 RRP: $41.95
2 Pack Window Door Alarm, 110dB Wireless Anti-theft Magnetic Sensor
$49.95 Save $49.05 RRP: $99.00
Tuya Smart ZigBee Sensor Smart Temperature Humidity Detector RSH-ZigBee-HS03
$35.95
Tuya Smart ZigBee Sensor Smart Temperature Humidity Detector RSH-ZigBee-HS03
$35.95
Tuya Smart Home Security Alarm System: WiFi Window Door Sensor Detector for Smart Life App
$23.95 Save $20.00 RRP: $43.95
Magnetic Door Switch RC-33 NC Recessed Wired Security Window Door Sensor Alarm White (10 Sets)
$19.95 Save $19.00 RRP: $38.95
Tuya Smart ZigBee Sensor Smart Temperature Humidity Detector RSH-ZigBee-HS03
$35.95
Photoelectric Beam Sensor with Bracket, NPN Output for Reliable Detection
$19.95 Save $22.00 RRP: $41.95
Wireless Mailbox Alert System with LED Flash and Long Range Notification Chime
$59.00 Save $80.00 RRP: $139.00
suitable for door window alarm, 130db vibration sensor security open alarm
$28.95 Save $13.00 RRP: $41.95
DC 12v 24v Infrared Sensor Detector Door Safety Photocell Beam Sensor for Automatic Door
$16.95 Save $10.00 RRP: $26.95
1/4 Inch Shank Sphere Rotary Burr 3cm Head Milling Cutter Carbide File Tungsten Steel Wood Carving Grinding Head
$43.95 Save $50.05 RRP: $94.00
SONOFF DW2 WIFI Door Window Sensor Open/Closed Detector Smart Home Sec
$37.95 Save $9.00 RRP: $46.95
2pcs Wired Pir Motion Sensor Wide Angle Passive Infrared Detector For Home Burglar Security Alarm Sy
$12.95 Save $13.00 RRP: $25.95
Wireless Door Reminder Door Alarm Sensor Door Open Alarm Indicator w
$159.00 Save $20.00 RRP: $179.00
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
$28.95 Save $3.00 RRP: $31.95
Anti-Theft Wireless Door Alarm Instant Alert for Unauthorized Entry
$10.95 Save $15.00 RRP: $25.95
10pcs Magnetic Switch Door Window Security Alarm System Normally NC NO Contact Switches for Enhanced
$19.95 Save $10.00 RRP: $29.95
Tuya ZigBee Smart Vibration Sensor Real Time Monitoring Door Window Detection Alarm Smart Security
$17.95
Wireless Front Door Sensor Living Room Loud Sound Security Alarm System Warehouse Store Window Detector Reminder
$21.95
Mini Anti-Lost Whistle Key Finder Wireless Alarm Smart Tag Key Locator Keychain Tracker Whistle Sound LED Light Tracker
$18.95
PA-461 Wired Passive Infrared Curtain PIR Motion Detector Sensor Alarm(White)
$12.95
RC-33 NC Recessed Wired Security Window Door Contact Sensor (6 Sets)
$10.95 Save $2.00 RRP: $12.95
Tuya ZigBee Smart Vibration Sensor Real Time Monitoring Window Alarm
$23.95 Save $7.00 RRP: $30.95
Smart WiFi Door and Window Alarm Sensor, Remote Anti-Theft Alarm
$25.95 Save $8.00 RRP: $33.95
Infrared Photocell Sensor for Gate Safety - 12V/24V AC -Compatible Garage Door Accessory
$69.00 Save $60.00 RRP: $129.00
Loud 140dB Safety Alarm for Personal Protection - Compact and Reliable Security Device
$36.95 Save $37.05 RRP: $74.00
Glass Break Alarm 125dB Window Vibration Detector Sensor Alarm 3 Pack Ultra-Slim Anti-Theft Alarm for Door and Window with Ajustment Sensitivity
$54.00 Save $40.00 RRP: $94.00
Infrared Door Sensor 940nm 30m Detection Range Single Beam Photocell for Gate Safety 12-24V Black Finish
$11.95 Save $26.00 RRP: $37.95
Wireless Vibration Sensor Alarm for Home and Office Automation Control Monitoring System
$17.95 Save $30.00 RRP: $47.95
Tuya Zigbee Smart Door Sensor Rechargeable Wireless Window Alarm
$18.95 Save $30.00 RRP: $48.95