Mighty Mule Wireless Driveway Alarm System - FM231
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.
Mighty Mule Wireless Driveway Alarm System - FM231
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Quorum Home Security Monitor Glass Break Sensor New in Box NOS
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
NEW Arlo Home Security System SS1501-100NAS Keypad & 5 All In One Sensors
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
NEW Battery-Operated Water Alarm Sump Accessory Detect Leaks Loud 110db Alarm
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Aqara Water Leak Sensor, Requires AQARA HUB 1 Pack, White (OPEN BOX) A7
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
New Window Security Mini Entry Defender W/Chime SE-0129 Factory Sealed Doberman
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
2 Pack Universal Light Fixture Mounting Bracket, 4 Inches Diameter Silver 1
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Westek Wireless Motion Activated LED Spotlight SEC600 Battery Operated
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
X-Sense Wi-Fi Water Leak Detector Kit, Smart Water Sensor Alarm with App Alerts
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Amhey Wireless Motion Sensor Alarm Indoor Motion Detector Alarm For Business
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
X10 MS16A ActiveEye Motion Sensor
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Hiletgo Outdoor PIR DC 12V Automatic Infrared PIR Motion Sensor Switch for LED F
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
SimpliSafe Entry Sensor - Window and Door Protection - Compatible with Gen 3
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Garage Door for 41A5034, Garage Door for Craftsman Chamberlain Liftmaster Gar...
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wireless Motion Sensor Door Chime 17 Ringtones 4 LED Vibration Alarm for Home
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Qolsys QS1431-840 IQ Wireless S-Line Encrypted Glass Break Sensor
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Amhey Wireless Motion Sensor Alarm Indoor Motion Detector Alarm For Business
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Easy-to-Install 2-in-1 Alarm and Chime for Kids & Home Protection - 3 Pack
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
MC-31 Surface-Mounted Magnetic Door Switch Alarm, White, NC Contact - 5 Pack
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Tuya Zigbee WiFi Human Presence Sensor MmWave Radar Detector With Luminance
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Seco-Larm Enforcer Twin Photobeam Detector, 90-190 Ft. Range (E-960-D90)
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Seco-Larm Enforcer Twin Photobeam Detector, 90-190 Ft. Range (E-960-D90)
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Motion Sensor Switch with LED Guide Light, 1200 Sq Ft Coverage, No Neutral, Adju
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Solar Driveway Alarm 1/2 Mile Long Range Wireless Outdoor Motion Sensor Receiver
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Long Range Driveway Alarm - 1 Mile Wireless Motion Detector System
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Disc Golf Basket Sensor Light | Automatic Sensor Lighting + Automatic Color-Chan
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wi-Fi Water Level / Sump Monitor Sensor with Buzzer, email/ Text Alerts - Pro...
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wireless Motion Sensor Alarm Home Security Detector System With Remote For Garag
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Expandable Motion Sensor Door Alarm 360° Rotatable Sensor 17 Tones Entry Alert
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Create For Life® Industrial Vintage Flush Mount Ceiling 1 pack black
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Surface Mount NC Magnetic Contact Switch 5 Pack for Home Security Alarm Systems
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Woods L1706 Vandal Resistant Security Light With 9.5" x 4.5" x 4.5", Silver
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
ECOELER PIR Motion Sensor Ceiling Light, 3CCT Selectable 2 - Pack, White
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
2 Pack Black Flush Mount Ceiling Light - 11.8 inch 2 Pcs
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Pure Sine Wave Inverter, 3000 Watt, DC 12V to AC 120V Power Inverter with 2 AC O
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Pure Sine Wave Inverter 3500 Watt Power Inverter, DC 12V to AC 120V Car Inverter
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wyze Sense Starter Kit WHSK1 Indoor Wireless Battery Motion Sensor Kit White
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Samsung SmartThings Multipurpose Sensor F-MLT-US-2 New Sealed
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
For Leakage Sensor For 5188902-X4:
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
918FT Long Range Wireless Door Chime Entry Motion Sensor Alarm LED Flash
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
30 FT 50 Amp Generator Extension Cord STW 6/3 + 8/1, 125V 250V Generator Power C
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
50' 50A RV Camp Power Cord Generator Cord 6/3 + 8/1 AWG NEMA 14-50P to Bare Wire
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
40' 50A RV Camp Power Cord Generator Cord 6/3 + 8/1 AWG NEMA 14-50P to Bare Wire
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wireless Motion Sensor Alarm Home Security Detector Indoor Outdoor Remote Garage
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
50FT Generator Power Cord 50-Amp 125/250-volt 14-50P to CS6364 Locking Connector
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
NEW Battery-Operated Water Alarm Sump Accessory Detect Leaks Loud 110db Alarm
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
Wireless Driveway Alarm - 1/2 Mile Range Motion Sensor Detector, Weather Resista
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.
ChunHee Solar Outdoor Motion Sensor Alarm with Dog Barking and Gunshot Sound
Affiliate link — we may earn a commission, at no extra cost to you. Read our affiliate disclosure.