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Shop the best prices on 11,465 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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161 - 192 of 3,200
Tuya WiFiZigBee Smart Door Window Sensor Smart Home Wireless Door Detector
$9.95 Save $5.00 RRP: $14.95
Refrigerator And Freezer Alarm, Door Left Open, Reminders At 60 Seconds Or More-2025-ss
$17.95 Save $8.00 RRP: $25.95
Magnetic Clothing Hard Tag Remove Security Detacher
$10.95 Save $8.00 RRP: $18.95
Magnetic Remover Clothing Hard Tag Remove/security Tag Detacher
$34.95 Save $29.05 RRP: $64.00
Mengshen 2-pack magnetic door window alarms with 110dB alert for home security and DIY installation
$64.00 Save $15.00 RRP: $79.00
RC-33 NC Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Recessed Switch White - (6 Sets)
$11.95 Save $4.00 RRP: $15.95
Anti-Theft Refrigerator And Freezer Alarm, Door Window Left Open, Reminders At 30 Seconds
$34.95 Save $4.00 RRP: $38.95
2025 Latest Model Automatic Leveling Sensor Kit Print Compensation Sensor Hot
$33.95 Save $13.00 RRP: $46.95
SONOFF SNZB-02 ZigBee Temperature And Humidity Sensor Real Time Notification
$17.95 Save $25.00 RRP: $42.95
5 Pcs -38 Wired Door Window Sensor Magnetic Switch For Home Alarm System,When Sensor Together,Norma Edition 0112
$7.95 Save $25.00 RRP: $32.95
2026 4xSW-420 Vibration Tilt Sensor Alarm Module Motion Shake Shock for
$5.95 Save $5.00 RRP: $10.95
Movement Sensor Xiaomi MI MOTION SENSOR 2S BHR8995GL Wall mounting Xiaomi
$37.95
Tuya Zigbee Door and Window Sensor for Smart Home Security with Alexa and Google Home in UK
$27.95 Save $22.00 RRP: $49.95
ZigBee Vibration Sensor for Home Security Door Window Break-in Alarm Detector Compatible with Smart Life APP
$33.95
12/24v Photocell Sensor Beam For Sliding Gate Opener Infrared Safety Photo Cell
$24.95 Save $84.05 RRP: $109.00
Tuya WiFi Smart Home Burglar Alarm Sensor Infrared Motion Detector PIR Sensor Security Protection R
$29.95 Save $3.00 RRP: $32.95
2 Pack Wifi Smart Door And Window Sensor Door Detector Wireless Sensor
$94.00 Save $25.00 RRP: $119.00
Wireless SOS Emergency Button Alarm Home Burglar Alarm Sensor 433MHz
$12.95 Save $16.00 RRP: $28.95
Ultrasonic Ranging Alarm Kits LED Display Design of Reverse Alarm DIY Kit Ultrasonic Sensor Module f
$15.95 Save $9.00 RRP: $24.95
1 Set Touch Lamp Repair Kit 3 Way Touch Sensor Dimmer Control Module Replacement Sensor
$14.95 Save $69.05 RRP: $84.00
Glass Break Alarm Glass Door Window Vibration Sensor 130db Glass Breaking Alarm Window Sensor
$41.95 Save $62.05 RRP: $104.00
13,000gs Magnetic Security Tag Remover Golf Detacher For Eas Security System
$45.95 Save $63.05 RRP: $109.00
2pcs Personal Security Window & Door Alarm Bell,wireless Sensor Door Window Burglar Alarm
$26.95 Save $27.05 RRP: $54.00
Powerful siren alarm for doors and windows with wireless magnetic sensor
$36.95 Save $22.05 RRP: $59.00
Door Alarm, Wireless Door Window Contact Sensor For Kids Safety 4 Pcs
$41.95 Save $42.05 RRP: $84.00
Wireless Zigbee Door Window Sensor CR2032 Battery Smart Alarm
$19.95 Save $11.00 RRP: $30.95
Door Stop Alarm Door Window Burglar Alarm Travel Business Trip Home Hotel Alarm Sensor
$10.95 Save $11.00 RRP: $21.95
Hook remover for Eas Mini security tag detacher and alarm
$22.95 Save $23.00 RRP: $45.95
Utp 4 Channel Passive Video Balun Transceiver
$33.95
2 Pack Wifi Smart Door Window Sensor Door Detector Wireless Sensor With App Alarm
$40.95 Save $148.05 RRP: $189.00
C100 125dB Vibration Sensor Alarm Door and Window Alarm Home Personal Anti-theft Alarm(Black)
$20.95
Door Alarm, Door Opening Detector With Powerful Siren, Magnetic Wireless Door And Window Alarm(pack Of 1) new SZRH A-G 25-26s
$44.95 Save $44.05 RRP: $89.00