SALE Motion Sensor Light Switch,85-265V PIR Human Activated Sensor for LED Light 2Pcs
$18.15$19.11
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Sensors & Motion Detectors deals
Discounted security listings from eBay sellers, biggest markdowns first. Prices and availability change fast — confirm on eBay before buying.
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SALE 
SALE MC-51 NO Alarm Security Rolling Garage Door Contact, Magnetic Reed Switch 2Set
$25.17$26.49
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SALE MC-52 NO Alarm Security Rolling Garage Door Contact Magnetic Reed Switch 2Set
$26.35$27.74
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SALE Rhubarb Leak Detector Precision Leak Detection Instrument for Water Pipes
$1,161.47$1,222.60
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SALE Motion Detector Wired PIR Sensor Infrared Detector Switch with NO NC Output 12V
$42.16$44.38
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SALE 5Year Battery life Contact Sensor Door Window Detectors 433Mhz Wireless Magnetic
$34.83$36.66
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SALE Tuya WiFi Zigbee PIR Motion Sensor Smart Home Human Body Infrared Detector
$24.69$25.99
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SALE Chamberlain CWA2000 Wireless Motion Alert System Unit 1/2 Mile Range New Sealed
$94.05$99.00
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SALE Tuya Zigbee or WiFi Human Presence Sensor MmWave Detector With Luminance Sensor
$36.88$38.82
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SALE New Tuya WiFi Water Leakage Sensor SmartLife APP Control Home Security Alarm Lot
$23.75$25.00
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SALE Wired Photoelectric Vibration Alarm Sensor Detector Home Security Alarm System
$16.61$17.48
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SALE Window Door Sensor for433MHz Alarm System Wireless Alarm App Notification Alerts
$23.75$25.00
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SALE Hubbell Ivory Vacancy Sensor Wall Light Switch No Neutral PIR 120VAC WS1021I
$23.74$24.99
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SALE 2pcs MC-38 Surface Mount Wired NC Door Sensor Alarm Magnetic Reed Switches White
$12.68$13.35
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SALE 10 x RC-33 NC Recessed Wired Window Contact Sensor Alarm Magnetic Reed Switch
$20.75$21.84
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SALE MC-38 Surface Mount Wired NC Door Sensors Alarm Magnetic Reed Switch White
$11.64$12.25
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SALE 2Set Wireless Doorbell Chimes Waterproof Plugin Receiver Adjustable Volume Loud
$26.59$27.99
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SALE Auto ON OFF Detector Infrared PIR Motion Sensor Switch F LED Light Strip 12V-24V
$6.97$7.34
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SALE Easy installs Wall Mounted Motion Sensors 12V to 24V for Nice DOORHAN
$17.96$18.90
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SALE 110-240V AC Adjustable 360° Ceiling PIR Body Motion Sensor Detector Lam
$11.73$12.35
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SALE Submersible Level Sensor Deep Well Measuring Transmitter Water Level Gauge Fire
$455.80$479.79
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SALE Submersible Level Gauge with Display Sensor Water Level Gauge SS Probe Water Tan
$203.02$213.71
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SALE 2pcs RC33 NC Recessed Wire Door Contact Sensor Alarm Magnetic Reed Switch
$12.58$13.24
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SALE Lot of 9 SensorSwitch LSXR 0 Hl Fixture Mount Interchangeable Lens Sensor
$228.00$240.00
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SALE 6-Pack 120DB Security Alarms - Slim Window & Door Sensors for Peace of Mind
$49.39$51.99
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SALE Defiant Smart Water Leak Detector SWLZ20BWB Hubspace Alexa Google, New, Open Box
$18.95$19.96
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SALE ADC-S2000-T Temperature Sensor ALARM.COM Wireless Smart New
$37.99$39.99
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SALE Brown Motion Sensor Detector - 180-Degree Coverage, Easy Installation, Listed
$21.84$22.99
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SALE Smart WiFi Door and Window Sensor – Wireless Magnetic Contact Sensor with Rea...
$27.54$28.99
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SALE 2 Pack Water Leak Detectors, 100dB Water Sensor Alarms Flood Detector for Bas...
$27.54$28.99
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SALE WiFi Water Leak Detectors, Leak & Drip Alert with APP Push and Sound Alarm, S...
$25.64$26.99
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SALE Replacement Motion Sensor - Adjustable Time, Reliable Indoor/Outdoor Use
$21.84$22.99
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SALE Wi-Fi Water Leak Detector, Smart Water Wireless Sensor with 110dB Adjustable ...
$27.54$28.99
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SALE Water Leak Detector Sensor Alarm: Home Water Flooding Monitor Smart Sink Over...
$20.89$21.99
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SALE WD71 Water Leak Detector for WiFi Gateway/Hub, 120dB Adjustable Wireless Wate...
$25.64$26.99
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SALE WiFi Door Sensor Window Detector: Smart Window Contact Sensor, Wireless Magne...
$27.54$28.99
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SALE Smart WiFi Door Sensor: Wireless Window Sensor with App Notification Alert, T...
$27.54$28.99
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SALE 110V US Plug Industrial Smart Over Temperature Alarm Sensor Machine 752°F
$139.65$147.00
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SALE Smart Zigbee 3.0 Water Shut Off Valve 3/4" | Automatic Shut Off Valve for Leak
$146.74$154.46
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SALE 30 x RC-33 NC Recessed Wired Door Contact Sensor Alarm Magnetic Reed
$38.43$40.45
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SALE Hubbell Wall Mount Wireless 2-Relay Control Unit LoadLogic 120/277V 20A WLC402W
$199.49$209.99
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SALE MC-52 NC Alarm Rolling Gate Garage Door Contact Magnetic Reed Switches
$15.67$16.49
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SALE Onforu Motion Sensor, Dusk to Dawn Detector, Timer, Adjustable Detection Distanc
$18.04$18.99
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SALE 5 x Wired Door Contact Sensor NC Surface Mount Magnetic Reed Switch Black
$15.56$16.38
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SALE MC-58 NC NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switch
$19.38$20.40
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SALE 3 x Wired Door Contact Sensor NO NC Surface Mount Magnetic Reed Switch Black
$20.96$22.06
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SALE Kid-Safe 95dB Door & Window Wireless Alarm - 12 Pack Easy Adhesive Install
$27.54$28.99
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SALE 2-Pack 90dB Door Window Alarms for Ultimate Home Security & Kids Safety
$9.95$10.47
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