05e3:fd21 — 3M TL20 Temperature Logger

This is the USB identifier for a 3M TL20 Temperature Logger manufactured by Genesys Logic, Inc.. The vendor ID 05e3 is registered to Genesys Logic, Inc. with the USB Implementers Forum, and fd21 is the product ID that Genesys Logic, Inc. assigned to this particular model. When you run lsusb on Linux, this device appears as 05e3:fd21 Genesys Logic, Inc. 3M TL20 Temperature Logger.

Linux

$ lsusb
Bus 001 Device 004: ID 05e3:fd21 Genesys Logic, Inc. 3M TL20 Temperature Logger

You can filter directly with lsusb -d 05e3:fd21, or get the full descriptor dump with lsusb -v -d 05e3:fd21. Kernel messages from dmesg show the same pair as idVendor=05e3, idProduct=fd21.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_05E3&PID_FD21
USB\VID_05E3&PID_FD21&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_05E3&PID_FD21"

macOS

$ system_profiler SPUSBDataType
    3M TL20 Temperature Logger:
      Product ID: 0xfd21
      Vendor ID: 0x05e3  (Genesys Logic, Inc.)

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

The exact lines this page is generated from, in the upstream source file:

05e3  Genesys Logic, Inc.
	fd21  3M TL20 Temperature Logger

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