$54

Jeweller Door Protect Wireless Opening Detector

$29.99

Acuity Controls Sensor Switch Dimming Switching Photocontrol Occupancy

$49.77

(case of 10) Daintree Wireless Occupancy Sensor WOS2-WM-W, Passive Infrared

$10.67

KERUI Wireless Door Window Magnetic Sensor For Security Burglar GSM Alarm System

$39.95

UTC Fire & Security T-520SW 430210001 Multi-Technology Proximity Reader Lenel

$45.25

1/2 Mile Long Range Solar Wireless Driveway Alarm Outdoor Weather Resistant

$11.42

Automatic Light Sensor Control Switch DC8-50V Photocell Light Switch Repair Part

$2.66

Adjustable Delay Embedded PIR Infrared Human Body Motion Sensor Light Switch

$59.99

New Leviton OSP20-D0 Occupancy Sensor Power Pack 20A 120/277V 60HZ OSP20-0D0

$12.93

5 Pack Surface Mounted NC Magnetic Door Contacts Switch Sensor for Alarm

$12.72

Automatic Light Sensor Control Switch DC 8V-50V Photocell Light Switch Replace

$19.99

2 Packs (4 Sensors) Defiant Wireless Security Door/Window Alarm #1001 090 328