NEW SimpliSafe Original Generation Panic Button (Sealed)
$10.99
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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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GoveeLife Water Leak Detector 1S - 3+1 Pack w Smart Gateway H5059 Ships Free!!
$37.00
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Water Level Alarm WiFi Monitor Float Sensor 10ft
$139.66
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1 Pack LED Motion Sensor Control Switch Energy Saving For Home Popular
$13.70
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AC 85-265V Replacement Motion Infrared Sensor Switch For Outdoor 180° Detection
$12.36
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New Linear HONDWA01 Wireless Slim Door/Window Sensor For Honeywell 2 PACK
$39.99
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Auto ON OFF Detector Infrared PIR Motion Sensor Switch For Led Light Strip
$11.15
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Bosch DS938Z Ceiling Mount Passive Infared W/ Motion Analyzer ll Processing (G-D
$21.00
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$30.00
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SALE 2pcs NC Recessed Wired Security Contact Sensor Alarm RC-33 Magnetic Door Switch
$13.76$16.19
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SALE 2PCS NC Recessed Wired Security Sensor Alarm RC-33 Magnetic Reed Switch Brown
$13.94$16.02
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WiFi Water Level Monitor Alarm Float Sensor Battery
$154.00
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Honeywell Ademco 5815 Wireless Door/Windows Sensor
$7.50
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X-10 PR511 Powerhouse Outdoor MOTION MONITOR Dual Expandable Floodlight - New
$54.99
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Winland Waterbug/EnviroAlert Water Detection Sensor
$35.00
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New DSC WS4904P Wireless Pet Immune PIR Motion Sensor, WS4904
$50.00
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Pair of ReX-10 DM10A Motion Detectors Barking Dog Alarm - New
$44.99
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DSC PowerG Wireless Curtain PIR Motion Detector
$40.00
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Nest Detect Door and Window Sensor H1100WES
$19.99
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DEAL! TWO NIB Honeywell Home C7189R1004 Wireless Indoor Sensor
$80.00
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WiFi Water Level Monitor Alarm Float Sensor Battery
$154.00
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SALE BOSCH ISC-BPR2-WP12 Blue Line Gen 2 PetFriendly PIR Motion Detector 40ft New E55
$42.49$49.99
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SALE Honeywell 958 Hardwired Overhead Garage Door Contact Ademco Magnetic Sealed
$22.45$24.95
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SALE 3PCS Wireless PIR Motion Detector For 433MHz Home Security Burglar Alarm System
$40.74$46.29
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10ft-23ft Infrared Motion Sensor Home Garage Alert Security System
$18.94
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12V 360° Security PIR Motion Movement Sensor Detector Switch Ceiling Mo
$15.96
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Home Water Leak Detectors Compact Water Early Detection for Safety
$14.87
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SALE Body Infrared PIR Motion Sensor Switch For LED Light Strip Automatic DC 12V E
$7.67$8.16
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Easebloom Water Leak Detector for Home - 4 Mini Water Leak Sensor & Hub
$42.99
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SALE 5V-24V PIR Infrared Ray Motion Sensor Switch USB/DC LED Detector Switching j
$7.75$8.24
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SALE Type-C Charging Thermometer Hygrometer Wi-Fi Temperature Humidity Sensor Monitor
$17.44$18.55
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SALE IR Infrared Body Motion Sensor Automatic Auto Light Lamp Control Switch AC220V
$6.39$6.80
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SALE 100 MA 10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch
$8.84$9.41
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SALE PIR Infrared Motion Sensor Detector Smart Switch Light Lamp Switch Auto DC4-12V
$4.78$5.09
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SALE Infrared Motion Sensor Home Garage Alert Security System DIY Your Home
$17.44$18.55
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SALE High Sensitivity 24.125GHz Human Inductive Motion Microwave Radar Sensor
$15.98$17.00
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SALE Easy To Remove Water Leak Alarm Flood Level Overflow Detector Sensor New
$5.81$6.18
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SALE DC 12V-48V Dusk To Dawn Photocell Light Switch 8-50V Light Sensor Control Switch
$8.00$8.51
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Adjustable Millimeter Wave Presence Sensor For Intelligent Light Control
$21.94
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Adjustable Infrared Sensor Energy Saving Light Switch For Home
$19.82
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Solar Outdoor Motion Sensor Alarm - Dog Barking&Gunshot Sound, 13 Kinds of So...
$55.05
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Solar Outdoor Motion Sensor Alarm-Dog Barking and Gunshot Sound,Support Recor...
$39.97
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Solar Outdoor Motion Sensor Alarm - Dog Barking & Gunshot Sound 130db Motion ...
$39.97
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Solar Outdoor Motion Sensor Alarm - 360° Motion Detector Security Alarm, Supp...
$53.55
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Solar Outdoor Motion Sensor Alarm with 3Volume Control & Voice Recording, 129...
$46.01
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Solar Indoor&Outdoor Motion Sensor Alarm-129dB Loud Siren Noise Maker, 4 Mode...
$120.78
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Solar Indoor&Outdoor Motion Sensor Alarm -129dB Loud Siren Noise Maker, 4 Mod...
$63.80
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Solar Outdoor Motion Sensor Alarm 3 Working Mode Motion Activated Alarm 120dB...
$35.22
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