---
name: "utrh"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/utrh"
---

# utrh(4)

USBRH temperature and humidity sensor

## NAME

**utrh** – USBRH temperature and humidity sensor

## SYNOPSIS

**utrh\* at uhidev?**

## DESCRIPTION

The **utrh** driver provides support for Strawberry Linux's USBRH device. The sensor possesses a collection of sensor values which are made available through the [sysctl(8)](/sysctl/8.md) interface. The humidity data unit is "%RH" and the temperature data unit is "degC".

## SEE ALSO

[intro(4)](/intro/4.md), [uhidev(4)](/uhidev/4.md), [sensorsd(8)](/sensorsd/8.md), [sysctl(8)](/sysctl/8.md)

## AUTHORS

The **utrh** driver was written by Yojiro UO ⟨*yuo@nui.org*⟩.