---
title: "Rehlko"
description: "Rehlko is a built-in integration for Home Assistant. It has 164 installs sharing analytics and needs the vendor's cloud."
canonical: "https://vulpo.app/integrations/core/rehlko"
url: "https://vulpo.app/integrations/core/rehlko.md"
last-updated: "2026-10-22"
version: "1.4"
---

# Rehlko

> Rehlko is a built-in integration for Home Assistant. It has 164 installs sharing analytics and needs the vendor's cloud.

Rehlko is a built-in Home Assistant integration that connects to the Rehlko cloud service for generator monitoring. It adds sensors and binary sensors for the generator, such as battery voltage, controller temperature, engine coolant temperature, engine speed, engine state, and generator load. The binary sensors cover auto run and oil pressure. Setup happens in the UI with the email and password used for the Rehlko application. Home Assistant can also discover it on the network and offer to add it.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=rehlko)

## Supports

- **Uses the vendor's cloud**: Needs an internet connection and an account with the vendor.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Found by itself**: Home Assistant spots it on the network and offers to add it.
- **Silver quality**: Home Assistant's own rating of its code and setup experience.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

Home Assistant usually finds it on the network and offers to add it. It can also be added by hand under Settings, Devices and services.

### Connect

- **Email**: The email used to log in to the Rehlko application.
- **Password**: The password used to log in to the Rehlko application.

### Sign in again

- **Password**: The password used to log in to the Rehlko application.

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## Entities

- **Binary sensors**: Auto run, Oil pressure
- **Sensors**: Battery voltage, Controller temperature, Device IP address, Engine compartment temperature, Engine coolant temperature, Engine frequency, Engine oil pressure, Engine speed, Engine state, Generator load, Generator load percentage, Generator status, and 13 more

## At a glance

- Kind: Built-in integration
- Category: [Energy](https://vulpo.app/integrations/category/energy.md), Backup power
- Number: 164 installs sharing analytics
- Connection: Needs the vendor's cloud
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Quality scale: Silver quality scale
- Domain: `rehlko`
- Source: <https://www.home-assistant.io/integrations/rehlko/>

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Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-22. Source: https://vulpo.app/integrations/core/rehlko

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