Fresnel Lenses Infrared Human Body Sensing Switch cabinet Sensing
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
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.
Fresnel Lenses Infrared Human Body Sensing Switch cabinet Sensing
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Body Infrared PIR Motion Sensor Switch For LED Light Strip Automatic DC 12V C
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
New Sealed Intelectron Motion Detector With Security Light BC 863K Vintage 1988
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Mighty Mule FM231 Driveway Alarm Wireless Vehicle Detection Indoor/Outdoor Black
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Livex Lighting 58064-91 Solstice Collection 3-Light 18 x 18 x 8.5, Nickel
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5pcs RC-36 NC Recessed Wired Door Contact Sensor WINDOW Magnetic Reed Switch
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Expandable Long Range Driveway Alarm - Solar Wireless System
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5 Magnets Door Window Alarm White Security System
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Honeywell FG-701 Glassbreak Simulator With Battery - Works Great
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
AUDLES 4 Pack Garage Lights, 200W 20000LM 6500K Standard 200W-4PACK, Black
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Barrina 6500K 2FT LED Shop Light, 3000LM, 20W, T8 2FT-4 Packs,
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Globe Electric 44480 Brisbane 1-Light Outdoor Indoor Flush Black,
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
WD70x5 Water Leak Detectors With Dripping & Leaking Sensor Technology - 5 PACK
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Single Pole Motion Sensor Light Switch White 120° Coverage CFL LED Incandescent
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Lithonia Lighting Jelly Jar Light Fixture, Incandescent Utility Vapor Tight
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
NEW Swann Home Wireless Alarm System SW347-WA2 2x Motion Detector 2x Window Door
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Motion Sensor Switch with Outlet, PIR Wireless Motion Sensor Plug with Light Se
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
5Pcs 11x12.5mm Rotary Potentiometer Knob Cap Volume Control For o Amplifier
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Motion Sensor Switch with Outlet, PIR Wireless Motion Sensor Plug with Light Se
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
hykolity 10 inch Flush Mount LED Ceiling Light 10-inch, Brushed Nickel
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Smart Home Presence Sensor FP2 -Indoor Wired Radar Sensor with Light Automation~
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Hidden Camera Detector, 2025 Upgraded 8th Gen Camera Detector Model P18
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
HAOLEDI 4" 20W LED Ceiling Fan Light Retrofit Kit, 3CCT
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
HOFUY 2-Pack Cordless Spotlight Battery Operated Picture 2 Pack, Black
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Viessmann Car Motion mounting ring for modules 8462
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Lithonia Lighting Jelly Jar Light Fixture, Incandescent Utility Vapor Tight
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Defiant Home Security Door Window Alarm 1001-090-100 2 Settings Chime Siren New
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
ABS Water Leak Alarm Flood Level Overflow Detector Sensor Home Security
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Auto-Sensing Motion Switch AC100-240V ABS Flame-Retardant for LED Lamps 200W
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 b
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
AC 110V 220V PIR Infrared Body Motion Sensor Detector Control Switch Light Lamp
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
The Watchdog Water Alarm Early Warning Leak Detector BRAND NEW
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
New 110db Infrared Motion Sensor Home Garage Alert Security System
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Miseno ML14297 1 Light 8" Wide Flush Mount Bowl Ceiling Brushed Nickel
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
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wall Mounted Automatic Door 24.125Ghz Microwave Motion Sensor,Autodoor Sensors
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 aa
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft B
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Long Range Solar Driveway Alarm - Wireless Motion Sensor & 4 Sensors Included
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SimpliSafe Motion Sensor (Model U9K-MS3000) Brand New Sealed
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Solar Wireless Driveway Alarm System 1 2 Mile Range Motion Sensor 120Db Outdoor
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Upgraded Driveway Alarm, Radar + IR Dual Detection, 1/2 Mile Long Range Wireless
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Gold Modern Semi Flush Mount Ceiling Light D7.1''-Ceiling gold, 2-Gold
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Sync module core new and used blink doorbell with wall or door mount option
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Netgear Arlo AL1101 Wireless Add-On Indoor/Outdoor Smart Security
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
RadioShack Wireless Home Security System Home Automation 49-2551 NEW
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.