The product page of 功能扩展软件 "WV-CW5HA" from the Panasonic Security System. You can download features, manuals and firmware, specification sheet and more for WV-CW5HA here.
WV-CW5HA Key Feature - Panasonic安防监控系统 - 产品
Heater Unit
This product is a heater unit exclusively designed for use with Panasonic network cameras.