Wireless Entry Alert Bell Chime with Vibration & LED Indicator 5 Volume Levels
$21.19
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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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Eve Water Guard - Smart Home Connected Water Leak Detector *SEALED / BRAND NEW*
$97.95
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Indoor Motion Detector Alarm Door Bell 280M Range USB/Battery Powered Alert
$22.76
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3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light cc
$10.99
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Motion Sensor with Daylight Sensor Sync Light Up Type LED Stair Lighting Kit SSL
$126.99
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Linear HONDWA01 Wireless Door/Window Sensor - Honeywell Compatible - Lot Of 2
$29.99
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Wyze Sense Wireless Home Sensor & Motion Detector Kit Wi-Fi Alexa Google
$30.00
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Drosbey 36W Dimmable LED Ceiling Light Fixture, Flush Mount 36W, Brush Nickel
$30.05
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GoveeLife Smart Water Leak Detector 1s 1+3 Pack
$25.00
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Infrared Sensor Photocell for Security Gate Motion Detector Beams Garage Door
$22.99
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Long Range Wireless Driveway Alarm - 1/2 Mile Motion Sensor & Detector Kit - DIY
$123.99
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5 Pack Water Leak Alarm Detector - 120dB Loud Alert, IP66 Waterproof, Easy Insta
$73.99
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SALE Versatile Solar Motion Sensor Alarm: 4 Modes & 129dB Siren to Fortify Your Home
$30.39$31.99
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SALE 5.8GHz Microwave Motion Sensor - Arduino & Raspberry Pi Compatible, 3-5M Range
$19.19$23.99
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Ideal Security SK602-1 Door Security Lock Reinforcement Hardware New Open Box
$13.00
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Reliance THP108 PowerBACK Utility Power Return Alert
$25.00
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2 PCS Red Night Light 2.6 Inch Battery Operated Dimmable Motion Sensor 3 Modes
$23.91
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6 Pack Wireless Window & Door Alarms - DIY Home Security Burglar Alert System
$42.99
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3-Way Motion Sensor Light Switch with Timer & Sensitivity, 4 Pack
$79.51
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4000W Power Inverter, 12V DC to 120V AC Modified Sine Wave Inverter, Solar Car C
$320.04
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Garage Door Sensor For Genie Overhead GSTBR STBBL Openers No Bracket
$40.91
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NEW Leviton Decora IPS02 Motion Sensor Auto-On Electrical LED CFL Switch White
$17.87
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Door Window Sensor, Group Control Unlimited Devices, Wireless Mini Contact Senso
$61.09
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Honeywell DT-907 Dual TEC Dual Technology Motion sensor
$90.00
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Wireless PIR Motion Sensor Detector Security Alarm Chime,Shop Store Office Home
$54.43
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Solar Outdoor Motion Sensor Alarm - Dog Barking & Gunshot Sound, Support Recordi
$35.09
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Expandable Motion Sensor Door Alarm 360° Rotatable Sensor 17 Tones Entry Alert
$21.19
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Easy-to-Install 2-in-1 Alarm and Chime for Kids & Home Protection - 3 Pack
$24.99
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Seco-Larm Enforcer Twin Photobeam Detector, 90-190 Ft. Range (E-960-D90)
$84.87
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Seco-Larm Enforcer Twin Photobeam Detector, 90-190 Ft. Range (E-960-D90)
$84.87
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MC-31 Surface-Mounted Magnetic Door Switch Alarm, White, NC Contact - 5 Pack
$10.99
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918FT Long Range Wireless Door Chime Entry Motion Sensor Alarm LED Flash
$21.19
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SALE Amhey Wireless Motion Sensor Alarm Indoor Motion Detector Alarm For Business
$32.09$33.78
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OUDAER Solar Outdoor Motion Sensor Alarm - Dog Barking & Gunshot Green&Red
$43.43
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X-Sense Smart Thermometer Hygrometer WiFi Temperature Humidity Monitor App Alert
$17.99
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Amhey Wireless Motion Sensor Alarm Indoor Motion Detector Alarm For Business
$42.73
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5-24V USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip dd
$11.51
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Freetim Driveway Alarm Motion Sensor - Driveway Alarms Wireless Outside
$59.19
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Solar Outdoor Motion Sensor Alarm, Dog Barking&Gunshot Red + Brown
$42.99
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Solar Wireless Motion Sensor Alarm,Driveway Alarm Outdoor Waterproof Alert 12...
$28.38
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TECKNET Water Leak Detectors for Home, 120dB Water Sensor Alarm Leak Detector...
$26.32
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Wireless Motion Sensor LED Spotlight - Battery Operated, Waterproof Security Lig
$41.99
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129dB Solar Motion Sensor Alarm 4 Modes Red Blue Flashing Lights For Outdoor
$25.64
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SALE SimpliSafe Home Security System Keypad SSKP3 *POWERS ON*
$21.85$23.00
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Water Leak Starter Kit: Hub + 4 Leak Sensor 1 (Silent), Lora Long-Range, App/Sms
$103.77
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SALE HOMSECUR Wireless PIR Motion Sensor For 433MHz Frequency Alarm System
$19.12$22.49
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Lithonia Lighting 2x4 LED Troffer 2 Feet by 4 Feet, 4000-6000 Lumens, White
$69.77
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SALE Goveelife Upgraded Smart Water Leak Detector 1s With 1080ft
$14.54$17.10
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