AX-500 Plus - The AX-500 PLUS receiver only

Safety Photocell Infrared Beam Sensor Photoelectric Motion Detector for Black

OPTEX WONDEREX RX-35 PASSIVE INFRARED DETECTOR

Optex AX-70TN Outdoor Dual Beam Photoelectric Detector

Optex 40'X40' Pet Immune Passive Infrared Motion Detector PIR RX-40PI

Optex SL-650QDP SmartLine Advanced Outdoor Photoelectric Quad-Beam Detector

Optex RX40pi Pet Immune Passive Infrared Motion Detector PIR RX-40PI

Optex 40'X40' W/PET Immunity Passive Infrared Motion Detector PIR RX-40PI