Linear DR 1-Channel Receiver, 310 MHZ, 5.5" Width, 4" Height

Linear DNT00002A 1-Channel Visor Transmitter, 310 MHz, 9V Power, 2.16" Weight x 3.75" Height

Linear Delta-3 Visor Transmitter, 2-Channel (DNT00017A)

LINEAR DT Linear Delta Remote DNT00002A DTC DTA Transmitter Gate Garage Door Opener,Black

Linear DNT00026 1-Channel Key Ring Transmitter, 310 MHz, 12 V Power, 2.2" Width, 1.42" Height

Linear Mini-T (Ladybug) Compatible Mini Keychain Opener

Seco-Larm E-931-S35RRQ Enforcer Indoor/Outdoor Wall Mounted Photoelectric Beam Sensor with 35 Foot Range

Commercial Garage Door Opener PBS-3 Three Button Station

First Alert BRK SC9120B-12 Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 12 Pack