Ultrasonic Presence Detector Type Sensor Material Aluminum Finish Powder Coated Depth 8 1/4 in Height 3 in Width 4 in Color Gray Rating 3A Input Voltage 12 to 24V AC/DC Output Form C Relays Operating Temp -35 Degrees to 165 Degrees F Event Audit Trail No Keypad No Cylinder No For Use With Wireless Activation Doors