home-assistant.io/source/_components/sensor.temper.markdown
Alok Saboo 1aca7b08cf Misc fixes: e.g. -> e.g., and proper case for Home Assistant (#4942)
* e.g. to e.g., and proper case for Home Assistant

* Instructions how to -> Instructions on how to
2018-03-17 20:20:37 +01:00

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---
layout: page
title: "TEMPer Sensor"
description: "Instructions on how to integrate TEMPer sensors into Home Assistant."
date: 2015-08-06 19:00
sidebar: true
comments: false
sharing: true
footer: true
ha_category: Sensor
ha_iot_class: "Local Push"
ha_release: pre 0.7
---
This `temper` sensor platform allows you to get the current temperature from a TEMPer device.
To use your TEMPer sensor in your installation, add the following to your `configuration.yaml` file:
```yaml
# Example configuration.yaml entry
sensor:
- platform: temper
```
{% configuration %}
offset:
description: The offset to fix reported vales.
required: false
type: int
default: o
scale:
description: The scale for the sensor.
required: false
type: int
default: 1
name:
description: The name to use when displaying this switch.
required: false
type: string
default: myStrom Switch
{% endconfiguration %}
Since some of these sensors consistently show higher temperatures the scale and offset values can be used to fine-tune your sensor.
The calculation follows the formula `scale * sensor value + offset`.
The TEMPer sensors can only be accessed as root by default. To fix the USB permissions on your system create the file `/etc/udev/rules.d/99-tempsensor.rules` and add the following line to it:
```text
SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="0c45", ATTRS{idProduct}=="7401", MODE="666"
```
After that re-plug the device and restart Home Assistant.