# Aranet4 Home

Use Aranet4 Home for a room CO2 trend dashboard. The route is Aranet Bluetooth integration.

Model: Aranet4 Home

Maker: SAF Tehnika

Category: cameras-sensors

Display type: Not applicable

Collections: None

Evidence: Published documentation / community project (not independent hands-on testing)

Sources reviewed: 2026-11-04

Added to directory: 2026-11-04

Development route: Aranet Bluetooth integration

Setup: Configuration required

## Overview

Aranet4 Home gives your software a physical input. Your computer or Home Assistant reads the monitor and runs your rules. The linked documentation establishes a control route; the project ideas below are suggestions, not projects we have personally built or tested.

Best for: A room CO2 trend dashboard.

Not for: A guaranteed plug-and-play result without the listed setup or accessories.

Where code runs: Your computer or Home Assistant reads the monitor and runs your rules.

## Editorial popularity estimate

60/100. This is a subjective editorial estimate, NOT measured sales, traffic, quality, testing or customer reviews.

Conservative editorial midpoint for a newly researched entry; not measured demand, sales or quality.

Inputs on a 1–5 scale: ecosystem 3 (50%), tutorial visibility 3 (30%), retail familiarity 3 (20%). Assessed 2026-11-04.

## Project ideas

- A room CO2 trend dashboard

- A desk-light reminder to ventilate

## What you need

- Aranet4, Bluetooth host, Aranet app and Smart Home integration enabled.

- A laptop and coding agent for writing and reviewing your project

## Compatibility and cautions

- The documented integration requires firmware 1.2.0 or later. CO2 readings can inform ventilation reminders, not certify health or safety.

- Documentation reviewed, not hands-on tested by Atoms for Agents. Generated code needs review before it controls real hardware.

## Buy

[View on Amazon](https://www.amazon.com/Wireless-Detector-temperature-humidity-pressure/dp/B07YY7BH2W) — Example listing; confirm exact variant and compatibility

Amazon US checked 2026-11-04. Amazon displayed stock at the time checked. Price, stock and sellers can change. Confirm the exact model, revision and included accessories.

[View checked Amazon listing](https://www.amazon.com/Wireless-Detector-temperature-humidity-pressure/dp/B07YY7BH2W)

The linked US listing was inspected on 2026-11-04. Selected variant: Aranet4 Home. Check seller, bundle contents and return policy before ordering.

Affiliate link: no

## Creator projects and demos (source-reviewed; not independently hardware-tested)

- [Using The Aranet 4 CO2 Sensor and Home Assistant to Control my TV Room Lights!](https://www.youtube.com/watch?v=jRjBWGodg9c) — Simon Says Home Assistant; Creator video
  Simon uses CO₂ readings as a presence signal for his TV-room lights. The video covers pairing the monitor with Home Assistant and setting up the automation.
  Compatibility (exact): Uses Aranet4 Home, a Home Assistant host, Bluetooth coverage, and controllable lights. CO₂ changes slowly and depends on ventilation; this is experimental occupancy logic, not a safety system. Creator received the sensor free and discloses affiliate links.

## Setup and technical references

- [Aranet](https://www.home-assistant.io/integrations/aranet) — Home Assistant contributors; Documentation

## Planning notes (not a replacement for the original technical instructions)

1. **Confirm the exact model**: Match the hardware label and bundle to the linked documentation. Aranet4, Bluetooth host, Aranet app and Smart Home integration enabled.

2. **Prove the documented connection**: Follow the original guide and run its smallest supported example before asking an agent to extend it. The documented integration requires firmware 1.2.0 or later. CO2 readings can inform ventilation reminders, not certify health or safety.

3. **Build one useful behavior**: Start with a room CO2 trend dashboard. Add logging, sensible timeouts and a manual off switch. Your computer or Home Assistant reads the monitor and runs your rules.

## Coding-agent project brief

Help me plan a room co2 trend dashboard using Aranet4 Home. Read https://www.home-assistant.io/integrations/aranet first. Confirm my operating system, exact model, firmware and required accessories. Use only documented capabilities. Start with the smallest reversible test and ask before moving hardware, flashing firmware or changing credentials. The documented integration requires firmware 1.2.0 or later. CO2 readings can inform ventilation reminders, not certify health or safety. Keep secrets out of public code.

## Common questions

### Where does my software run?

Your computer or Home Assistant reads the monitor and runs your rules.

### What do I need before starting?

Aranet4, Bluetooth host, Aranet app and Smart Home integration enabled.

### What should I check before buying?

The documented integration requires firmware 1.2.0 or later. CO2 readings can inform ventilation reminders, not certify health or safety.