---
name: "acpitz"
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/acpitz"
---

# acpitz(4)

ACPI thermal zone

## NAME

**acpitz** – ACPI thermal zone

## SYNOPSIS

**acpitz\* at acpi?**

## DESCRIPTION

The **acpitz** driver supports ACPI Thermal Zones. Temperature information is available through this driver as a sensor which is updated every 10 seconds or, if the implementation supports it, via an event. If the temperature exceeds the ‘critical’ temperature threshold, the system will be shut down and powered off. The sensor provided by **acpitz** can be monitored using [sysctl(8)](/sysctl/8.md) or [sensorsd(8)](/sensorsd/8.md).

## SEE ALSO

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

## HISTORY

The **acpitz** driver first appeared in OpenBSD 3.8.

## AUTHORS

The **acpitz** driver was written by Can Erkin Acar ⟨*canacar@openbsd.org*⟩.