ECOELER Motion Sensor Light Switch, Occupancy & Vacancy Model Motion Activate...
$17.94
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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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Wireless PIR Motion Sensor Alarm, 26 Ft Detection Range, 80dB Alert or Chime, Ad
$24.99
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New Aritech AP426 AP400 Series PIR Motion Sensor/Detector
$13.95
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SALE ECOELER Motion Sensor Light Switch, Occupancy & Vacancy Model Motion Activate...
$16.01$16.76
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Honeywell Home DT8035V DUAL TEC Motion Sensor, 40' 56' Range
$44.00
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SALE Bunker Hill Security Door / Window Entry Alarm Pack of 2 Item 94983 New Sealed
$9.99$11.88
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Honeywell / Ademco 998SB Swivel Mounting Bracket
$8.00
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SALE 5pcs HC-SR501 PIR Infrared Motion Sensors for Arduino & Raspberry Pi Projects
$15.57$18.99
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SALE Smart HC-SR501 PIR Infrared Sensors Pack (3pcs) for Enhanced Automation Projects
$13.93$16.99
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1/2 Mile Long Range Wireless Driveway Alarm-Outdoor/Indoor Motion Sensor &Detect
$97.99
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Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch Replace
$12.45
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DC USB Body Infrared PIR Motion Sensor Switch Detector Switch For LED Light
$11.15
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Motion Sensor DC 5V 24V Light Switch Movement Detector Automatic PIR Sen D
$10.22
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45° Infrared Motion Sensor Home Garage Alert Security System
$19.15
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Universal USB Port Detector PIR Motion Sensor Switch For Led Light Strip
$11.15
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SALE Wired Door Contact Sensor NO NC Type Surface Mount Magnetic Reed Switch Black
$14.35$16.88
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DSC WS4904P Wireless Motion Sensor - White
$30.00
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Alarm.com ADC-S40-T Temperature - Humidity Sensor Brand New Sealed Box
$30.00
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SALE Rechargeable LED Spotlight for Indoor, Wireless RGB Spot Light
$12.45$13.25
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Yolink Water Leak Detector, 1/4 Mile World's Longest Range, Wireless Smart Water
$14.98
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Leviton OPP20-D1 Occupancy Sensor Power Pack Auto On 120-230-277V Gray
$35.00
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WATER ALARM dual-purpose Basement Sentry 148138 NEW! sump pumps, water heaters,
$8.47
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Smart Wifi Door Sensor: Wireless Window Sensor with App Notification Alert, Tuya
$23.99
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Wifi Human Presence Sensor: Smart Motion Sensor with 2.4Ghz Mmwave Radar, Zone P
$48.99
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Zigbee Contact Sensor 4 Pack, Door and Window Monitor, Home Automation,Works wit
$137.99
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Clearsky Door/Window Contact Sensor- Apple Homekit Compatible Using Clearsky Bri
$27.99
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DC 5V-24V 3A PIR Motion Sensor Light Switch IR Detector Time Delay 2/4/6PCS
$12.08
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DC 5V-24V 3A PIR Motion Sensor Light Switch IR Detector Time Delay 2/4/6PCS
$12.22
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New Solar 110 Decibels Sound & 6LEDs Light Alarm Motion Sensor Alarm Lamp
$18.32
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DC8-50V Photocell Light Sensor Switch For Automatic Switching Lights Control
$8.50
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Microwave Body Induction Module 24GHz CDM324 Radar Induction Switch Sensor
$6.85
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PATIKIL Magnetic Reed Switch 10 Pack Wired Recessed Door Window Sensor Brown
$63.99
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DC12-24V 8A Automatic Adjustable Motion Sensor IR Infrared Detector Light Switch
$8.14
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Solar Outdoor Motion Sensor Alarm - Dog Barking & Gunshot Sound 130db Motion Det
$36.99
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10 Pack Small Spotlight Battery Operated LED Lights, Warm White
$9.11
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X-Sense Smart Mailbox Alarm, Wireless Long Range Mailbox Alert, Mailbox Sensor w
$58.99
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Single Solar Sensor Incompatible with Pre-2022 Versions— 1/2 Mile Motion Sens...
$47.51
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Wireless Driveway Alarm Sensor - DCMT-4000 Long Range, Passive Infrared Motio...
$71.24
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5Pcs Water Leakage Detector Sensor with 3.5 Audio Head Water Level Sensor4244
$12.99
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Tuya WIFI Water Sensor Alarm Water Leak Detector Flood Alert Overflow5296
$12.36
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Non-APP Wireless Driveway Alarm — 1/2 Mile Solar Motion Sensor with Plug-in R...
$67.02
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Zigbee PIR Motion Sensor 120° Wireless Passive Infrared Detector Home Security
$20.36
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20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft E
$11.20
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10 x RC-33 NC Recessed Door Contact Sensor Alarm Magnet Reed Switch
$9.29
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ABS 24.125GHz Human Inductive Motion Microwave Radar Sensor For Automatic Door
$17.14
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180-240V 50/60Hz Auto On/Off Light Voice Sound Sensor Switch Time Delay Function
$3.05
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2pcs 180° PIR Motion Sensor Switch infrared wall mount switch 50/60Hz 110-240V
$12.34
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Auto On/Off Sensor Switch Motion Infrared PIR Occupancy Smart Wall Light Lamp
$11.31
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