4 Modes Outdoor Solar Alarm 129dB Motion Sensor With Dog Barking Gunshot Sounds
$25.10
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Sensors & Motion Detectors
Motion, door/window and glass-break sensors are the trip-wires of a security system. Check what hub or panel they pair with (many are brand-specific and won't mix), wired vs wireless, and battery life for wireless units. For motion sensors, pet-immune designs avoid false alarms. Buying spare or used sensors is fine — just confirm the protocol and that they're compatible with your system.
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New Effective Device Water Leak Alarm Flood Level Overflow Detector Security
$10.41
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10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 100V
$12.92
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PIR Motion Sensor Switch Auto-Sensing On/Off AC100-240V for Schools & Buildings
$12.36
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1Pc USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip bb
$11.15
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SALE DSC PG9922 PowerG Wireless Glass Break Detector NEW Qolsys IQ4 IQ2
$67.00$79.00
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SALE Bunker Hill Security Driveway Alert System Wireless Intruder Alarm
$12.99$16.90
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NEW Alarm.com ADC-S40-T Z-Wave Plus Temperature & Humidity Sensor Wireless
$49.99
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Watt Stopper CX-100 Occupancy Passive Sensor
$65.00
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Utilitech Iris Wireless Glass Break Smart Security Sensor 0567900
$25.00
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SALE Home Security System - Glassbreak Sensor`
$83.99$139.99
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SALE Wireless Door Window Protection Sensors - Pack of 4`
$115.19$191.99
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Automatic Light Sensor Control Switch DC8-50V Photocell Light Switch Accessory
$12.32
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10ft-23ft Infrared Motion Sensor Home Garage Alert Security System
$18.94
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129dB Solar Motion Sensor Alarm 4 Modes Red Blue Flashing Lights For Outdoor
$24.83
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Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen E
$10.11
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LM393 Sound Sensor Module High Sensitivity Microphone Detection 5 Pack Arduino
$16.89
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Zigbee Window Door Sensor Wireless Magnetic with Lux Vibration Detect Open Close
$12.99
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Tuya Wifi Motion Sensor PIR Smart Human Body Home Burglar Sensor APP Remote Cont
$14.99
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Zigbee 24G Mmwave Human Presence Sensor Microwave Radar Occupancy Motion Detecto
$15.99
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Tuya Zigbee 10G Mmwave Radar Motion Sensor Smart Human Body Sensor with Illumina
$14.99
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Tuya Wifi Motion Sensor PIR Smart Human Body Home Burglar Sensor APP Remote Cont
$15.99
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Zigbee 24G Mmwave Human Presence Sensor Mini Radar Detector for Tuya Smart Home
$13.99
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Zigbee 10G Mmwave Radar Motion Sensor Tuya Smart Human Motion Sensor with Illumi
$15.99
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Widluth Modern Drum Semi Flush Mount Ceiling Light 3-Lights 17.71" White
$129.99
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Zigbee Motion Sensor - mmWave Radar Presence Detector, AI Learning, Smart Home C
$99.99
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20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft D
$11.68
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Automatic Sliding Door Opener Tool Safety Beam Sensor Infrared Anti-Clip Device
$24.28
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AC 85-265V Professional Motion Infrared Sensor Switch For Outdoor 180° Detection
$12.23
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Smart LCD Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$19.68
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Automatic Door 24.125Ghz Microwave Motion Sensor,Autodoor Motion Tracking
$19.31
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New 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 7-17mm
$12.78
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129dB Solar Motion Sensor Alarm 4 Modes Red Blue Flashing Lights For Outdoor
$24.83
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Automatic Light Sensor Control Switch DC8-50V Photocell Light Switch Accessory
$12.32
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Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen E
$10.11
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3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light E
$10.11
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Automatic IR Infrared PIR Motion Sensor Body Induction Switch Control Repair Kit
$10.91
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PIR Motion Detection Sensor Lamp Switch Infrared Human Body Induction Accessory
$5.17
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New 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 7-17mm
$9.72
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SALE For Leakage Sensor For 5188902-X4
$249.98$277.76
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Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch Parts
$8.81
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AC 85-265V Replacement Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.89
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4 Modes Outdoor Solar Alarm 129dB Motion Sensor With Dog Barking Gunshot Sounds
$26.94
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2pcs PIR Motion Sensor Switch Wall Light Switch Delay Time: 5s~8min (Adjustable)
$12.73
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SALE Door Window Vibration Alarm 130dB, Glass Break Sensor Anti-Theft Security Alarm
$22.49$24.99
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20m Single Beam Alarm Photoelectric Infrared Detector Alarm Home Security NEW
$9.84
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SALE Door Contact Sensor Alarm 120dB Adjustable Volume Door Chime for Home Security
$20.69$22.99
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AC 85-265V Brand New Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.51
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