Equipment Interface Module Compatible Brand and Series RedLINK TrueZONE Compatible Grainger Part Number 3RCL7 3RCL8 Compatible Manufacturer Model Number HZ322 HZ432 THM6000R7001 THX9321R1008 THX9321R5000 Function C-Wire Adapter Includes - Key Features Communicates with Wireless Outdoor Sensor Overall Depth 1 1/4 in Overall Height 5 9/16 in Overall Length 4 3/8 in Wireless System Compatibility RedLink Gray Terminal Designations A B C D 18 to 30V AC Wireless Yes