In order to use the USB-only temperature or humidity environment sensor, the Virtual COM port (VCP) drivers need to be installed on the host on which the sensor is to be connected. The VCP driver emulates a standard PC serial port such that the USB device may be communicated with as a standard RS232 device.
The EventSentry management console will attempt to automatically install this driver for you when you configure the sensor in the "Environment" settings, which can be found in the toolbar under Home > Environment. In the "General Settings" section of the Environment settings, when you change the "Scale & Type" from "Serial" to "USB" it will launch the automatic driver installation. Follow the installer menus to finish installing the driver.
If the driver cannot be automatically installed, or if you are trying to install the sensor on an agent-only machine, follow the manual driver installation instructions below.
The latest drivers can also be downloaded from the FTDI web site at https://www.ftdichip.com/Drivers/VCP.htm.