Commercial Access Control Receiver Product Type Receiver Includes Antenna Mounting Bracket with (2) Screws Receiver For Use With Door Operators Operating Voltage 9V to 30V AC 9V to 42V DC Overall Length 2 in Overall Height 6 in Overall Width 4 in Material Polycarbonate Color Black Compatible with Grainger Part Number 45GF96 Compatible with Manufacturer Model Number 811LM PPK3M PPLK1 PPLK1PH Maximum Operating Temperature 149 Degrees F Minimum Operating Temperature -40 Degrees F