Built-In Heater In The Tvb-2405/4405 Camera - Interlogix TruVision TVB-2402 Installation Manual

b) TVB-2405/TVB-4405 has a motorized lens.
Please adjust its zoom and focus by using
the zoom and focus buttons on the PTZ
panel of a connected recorder or controllor.
Built-in heater in the TVB-
2405/4405 camera
The TVB-2405/4405 camera has a built-in heater
that works within the temperature range of -40 and
+60 °C (-40 to +140 °F). The heater only works at
24 VAC.
12 Installation Guide