The product page of Function Extension Kits "WV-CW4H" from the Panasonic Security System. You can download features, manuals and firmware, specification sheet and more for WV-CW4H here.
WV-CW4H Key Feature - Panasonic security system - Products
WV-CW4H - Function Extension Kits
WV-CW4H
Heater Unit
This product is a heater unit exclusively designed for use with Panasonic network cameras.