10 x RC-33 NC Wired Door Contact Sensor Alarm Magnet Reed Switch 100V
$13.06
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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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PIR Motion Sensor Switch Auto-Sensing On/Off AC100-240V for Schools & Buildings
$12.49
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20M Single Beam Detector Alarm Photoelectric Infrared Laser Sensor Anti Theft D
$15.41
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Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch Parts
$12.59
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3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light F
$10.33
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1Pc USB Port Detector Infrared PIR Motion Sensor Switch For Led Light Strip bb
$11.27
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SENSOR SWITCH CMRB-6 HIGH BAY 360 SENSOR PIR 208/240 VAC
$25.98
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Honeywell Home Wireless PIR Motion Sensor Detector 2 Way SIXPIRA Genuine OEM
$34.77
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Smith & Wesson Home Security Products Window Alarm 105 db Alarm NIP Batteries in
$4.95
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Abode Mini Door Window Sensor Wireless Smart Home Security HomeKit Alexa White
$21.00
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ChunHee Solar Outdoor Motion Sensor Alarm with Dog Barking Gunshot Sound, Suppor
$38.87
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Dakota Alert Long Range Wireless Driveway Motion Detector - DCMA-4000 White
$97.82
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eMACROS Non-APP Wireless Driveway Alarm — 1/2 Normal, 1 receiver and 1 sensor
$70.05
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50Pcs Security Tags Lanyards Wire Loop (8", White), Steel Wire Cable Loop
$14.57
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SALE Solar Driveway Alarm Wireless Outside 1800ft Range Motion Sensor & Detector
$66.44$67.26
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HONWELL Wireless LED Spotlights 2 Pack Accent Light Puck Lights with 2 White
$40.99
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SALE Smart Home Presence Sensor FP2 - Indoor Wired Radar Sensor with Light Automation
$114.31$142.89
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MC-31 Wired NC Magnetic Door Window Contact Sensor Alarm Reed Switch, 5 Pack
$13.99
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hykolity 10 inch Flush Mount LED Ceiling Light 10-inch, Oil-Rubbed Bronze
$52.99
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W-2000A WattStopper 360 Degree Ultrasonic Motion Ceiling Occupancy White
$355.99
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12 Inch LED Flush Mount Ceiling Light Fixture, 5000K 12 Inch, Daylight White
$28.35
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New Honeywell DT-6360STC DUAL TEC Motion Sensor
$157.01
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NEW Monnit Alta Enterprise Wireless Water Rope Sensor AA battery MNS2-9-W2-WS-WR
$180.00
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VIOLOEMI Crystal Gold Semi Flush Mount Ceiling Light Modern 27CM,
$84.93
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VOLISUN 5CCT LED Flush Mount Ceiling Light, 7 inch Dimmable 7IN-1 Pack, Black
$14.29
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ECOELER 5/6" LED Disc Light, 16.5W 5000K 1 - Pack, Daylight
$14.29
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SALE Wired Door Contact Sensor SHOPS NO NC Surface Mount Magnetic Reed Switch Black
$14.89$17.52
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SALE 3pcs MC38 Surface Mount Wired NO Door Sensor Alarm Magnetic Reed Switch White
$20.51$22.79
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SALE Wireless Driveway Alarm 1800ft Solar Motion Sensor, Weatherproof, Rechargeabl...
$99.89$110.99
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Motion Sensor Light Switch PIR Occupancy Vacancy HeavyDuty 200W Incandescent 15
$55.81
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Flume 2 Wireless Smart Home F2200 Water Monitor & F2100 Water Leak Detector VGUC
$74.99
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PATIKIL 125mm (4.9") Universal Light Fixture Mounting 125mm, Silver Tone
$13.17
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Slochi 2Pack Motion Sensor Ceiling Light Wired, 2packs-7Inch, White
$44.05
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Sunco 10 Pack LED Shop Lights for Workshop 4FT, Linkable 10 Pack, 6000K White
$129.43
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SALE Home Security System - Glassbreak Sensor#
$83.99$139.99
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3 Pack Zigbee Motion Sensor P1 Pet Friendly Smart Detector Requires Hub
$66.74
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Wireless Motion Sensor and Battery-Operated Chime Kit
$30.68
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SALE Solar Motion Sensor Alarm emits loud dog barking & gunshot sounds up to 130db
$35.12$38.59
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New 5800PIR Wireless Motion PIR, Motion Sensor For Honeywell Wireless System
$39.99
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Honeywell Sixpira LMD500 Wireless PIR Motion Sensor - White
$35.99
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Modified Sine Wave Inverter, 5000W, DC 12V to AC 120V Power Inverter with 6 AC O
$344.61
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Qolsys IQ Shock-S QS1138-840 Wireless S-Line Indoor Glass Break Detector 2 PACK
$29.99
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Microwave Motion Sensor 10.525GHz for Raspberry Pi Arduino Industrial Smart D...
$27.97
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Ring Jobsite Security Motion Sensor Wireless Indoor/Outdoor Orange
$40.00
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Wireless Solar Infrared Sensor Doorbell & Driveway Alarm, Motion Sensor & Receiv
$51.99
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SALE Smart Thermometer Hygrometer Wi-Fi LCD Temperature Humidity Sensor Home Digital
$19.13$21.49
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SALE 3-5m Automatic Body Infrared PIR Motion Sensor Detector Switch For LED light F
$9.87$11.09
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LED Outdoor 110-220V Infrared PIR Motion Sensor Detector Wall Light Switch 18...
$16.56
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