Best Handset Available: Zenoy plastic handle is stronger than traditional Lexan type. Armored cord assembled with a steel lanyard providing 1200+ lbs. pull strength and a heavy 14 gauge steel retainer to prevent handset removal.
Power: 24 to 48 VDC
Mounting: Mounts directly to wall, TM-4000 Backboard, or TM-4500-BB Backboard with conduit fittings
Relative Humidity: 0% to 95% condensing
Operating Temperature: -40 to 140 degrees Fahrenheit