10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 7-17mm
$15.28
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
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.
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Universal USB Port Detector PIR Motion Sensor Switch For Led Light Strip
$13.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
24.125GHz Human Inductive Motion Microwave Radar Motion Tracking Sensor
$23.09
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Solar Powered Motion Sensor Alarm 129dB 4 Modes 13 Sounds For Warehouse Security
$26.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
White PIR Motion Sensor Wall Switch AC100-240V for Downlights & Ceiling Lights
$13.29
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Solar Powered Motion Sensor Alarm 129dB 4 Modes 13 Sounds For Warehouse Security
$26.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
New Low-Cost Water Leak Alarm Flood Level Overflow Detector Sensor Security
$11.19
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Home WiFi Smart Temperature Humidity Sensor Meter Hygrometer Thermometer Monitor
$21.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wireless Motion Alarm & Doorbell Chime - AC Plug-in Alert with Remote - 90dB ...
$64.92
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip ff
$11.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
New 10 x RC-33 NC Recessed Door Contact Sensor Alarm Magnet Reed Switch
$13.89
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Sunco 10 4 Inch - 5 CCT, 5 CCT in One (2700K, 3000K, 3500K, 4000K, 5000K)
$85.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
ABS 24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$20.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
ABS 24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$20.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
4PACK 3200lm LED Flush Mount Ceiling Light, Super Slim 12 12in-4Pack, White
$60.21
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
EZVALO LED Spotlight Indoor, 5500mAh Rechargeable Battery-Powered 1pack, Gold
$24.85
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
EZVALO Spotlights Indoor with Remote, 5500mAh Rechargeable 2Pack, Black
$39.47
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
EZVALO Spot Lights Indoor, 5500mAh Rechargeable Picture 2Pack, White
$42.40
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
EZVALO Battery-Powered LED Spotlight Indoor, Wireless Picture 1Pack, White
$26.31
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
EZVALO Spotlights Indoor with Remote, 5500mAh Rechargeable 4pack, Black
$76.04
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Golden Lighting 3118-SF BLK-SD Hines Medium, Matte Black with Seeded Glass
$140.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Elevate Security with WaveLink Wireless Door Chime: 500ft Range & 58 Ringtones
$37.97
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Semi Flush Mount Ceiling Light Brushed Gold - Clear Glass Pendant Lamp
$44.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Annaror RGB Flush Mount LED Ceiling Light with Remote, 12 Inch, 12 Inch Black
$53.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
129dB Solar Motion Sensor Alarm 4 Modes Red Blue Flashing Lights For Outdoor
$26.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
NEW Samsung Smart Things ADT Water Leak Detector - SEALED
$59.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching
$11.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Smart LCD Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$21.39
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
10ft-23ft Infrared Motion Sensor Home Garage Alert Security System
$20.59
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
AC 85-265V High Quality Motion Infrared Sensor Switch For Outdoor 180° Detection
$11.40
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Outdoor Solar Motion Detector Alarm 129dB 4 Working Modes For Warehouse Garage
$26.45
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
New ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$10.97
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip h
$11.75
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Outdoor Solar Motion Detector Alarm 129dB 4 Working Modes For Warehouse Garage
$24.29
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light I
$10.77
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
New ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
$10.07
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip h
$10.79
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen I
$10.77
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wall Mount 24.125GHz Human Inductive Motion Microwave Radar Sensor For Elevators
$20.57
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$10.79
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Outdoor Solar Motion Detector Alarm 129dB 4 Working Modes For Warehouse Garage
$25.37
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Infrared Sensor Switch AC100-240V Brand New 1PCS for Office & Home Lighting
$12.49
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
129dB Solar Motion Sensor Alarm 4 Modes Red Blue Flashing Lights For Outdoor
$26.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Infrared Motion Sensor Switch 140° Detection Angle AC100-240V for Public Places
$13.29
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching
$11.99
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
ABS 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
$13.06
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$11.27
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Automatic Light Sensor Control Switch DC8-50V Photocell Light Switch Repair Part
$12.59
View on eBay
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.