---
product_id: 335645147
title: "Aranet4 Home: Wireless Indoor Air Quality Monitor for Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History"
brand: "saf"
price: "€ 446.04"
currency: EUR
in_stock: true
reviews_count: 5
category: "Saf"
url: https://www.desertcart.hr/products/335645147-aranet4-home-wireless-indoor-air-quality-monitor-for-office-school
store_origin: HR
region: Croatia
---

# 14-day app data history with real-time monitoring Up to 4 years battery life with energy-saving e-ink NDIR CO2 sensor for ultra-precise air quality Aranet4 Home: Wireless Indoor Air Quality Monitor for Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History

**Brand:** saf
**Price:** € 446.04
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your air game—because your productivity deserves the freshest breath!

## Quick Answers

- **What is this?** Aranet4 Home: Wireless Indoor Air Quality Monitor for Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History by saf
- **How much does it cost?** € 446.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/335645147-aranet4-home-wireless-indoor-air-quality-monitor-for-office-school)

## Best For

- saf enthusiasts

## Why This Product

- Trusted saf brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Alerts:** Color-coded display and customizable buzzer warn you before air quality dips, keeping you ahead of discomfort.
- • **Data-Driven Decisions:** Intuitive smartphone app with 14-day history lets you analyze trends and fine-tune your space for peak productivity.
- • **Unmatched Battery Life:** Energy-efficient e-ink screen powers up to 4 years on a single battery—set it and forget it.
- • **Portable & Wireless Freedom:** Compact, lightweight design with Bluetooth connectivity lets you monitor air quality anywhere—office, home, or school.
- • **Breathe Smarter, Work Better:** Real-time CO2, temperature, humidity & pressure tracking to optimize your indoor environment.

## Overview

The SAF Aranet4 Home is a compact, wireless indoor air quality monitor featuring a highly accurate NDIR CO2 sensor, temperature, humidity, and atmospheric pressure tracking. Its energy-efficient e-ink display offers up to 4 years of battery life, while the Bluetooth-enabled smartphone app provides real-time data and 14-day historical insights to help professionals optimize their indoor environments for health and productivity.

## Description

Product description Improve your well-being! What we breathe affects how we feel. Aranet4 tracks air quality, helping you make smart decisions about ventilation and healthier spaces. Take care of your air! Carbon Dioxide This odorless gas is harmless in small quantities. However, increased concentrations negatively impact productivity, health, and indoor air quality. Temperature Humans operate best under specific conditions. Studies show that maintaining a range of 68-76 °F (21-22 °C) is ideal within homes, offices, etc. Relative Humidity Finding the correct balance of moisture (30-60%) in an indoor environment is key to ensuring human comfort. Atmospheric Pressure Atmospheric pressure affects human well-being, impacting breathing, blood pressure, and ear pressure, especially during altitude changes. Free app It allows you to see the measurement history going back 90 days or see CO2 measurement in real-time. Allows you to see the readings you had during the night or while you were away from home. Makes it easy to track progress, when implementing changes in your home ventilation, so you can find the best solutions for your home and make smarter decisions. Makes it easy to change various settings for your Aranet device. You can turn on the buzzer and change the warning thresholds to custom settings. Wireless and portable – take your Aranet4 wherever you go!

Review: excellent produit - Excellent produit. Les mesures son fiables l'appareil est compact et utilise la technologie NDIR. Il est possible de le recalibrer. L'application pour téléphone mobile est très intuitive elle offre une foule de paramètres et permet une visualisation sous forme de courbes des différentes mesures (CO2, température, hygrométrie, pression atmosphérique) sur une journée, une semaine ou une période au choix. La connexion utilisée dans mon cas est le Bluetooth, elle est extrêmement réactive et économe en batterie. Hormis sont prix élevé il s'agit d'un excellent produit.
Review: Handlicher CO2 Sensor mit sehr guter App - Der CO2 Sensor ist gut und sicher verpackt. Macht einen wertigen Eindruck und sieht gut aus. Dank der Verwendung normaler Batterien und seiner geringen Größe kann man ihn einfach mal in ein anderes Zimmer stellen oder mitnehmen. Viele andere vergleichbare Geräte haben einen kurzzeitigen Akkubetrieb oder erfordern einen Netzanschluss. Die Bluetooth-Verbindung mit der zugehörigen App ging schnell und einfach. Die Verbindung ist stabil. Kein Re-Connect erforderlich wenn man zB außer Reichweite war. Die Anzeige am Gerät ist gut ablesbar. Meist schaue ich aber über die App, da hier auch der zeitliche Verlauf angezeigt wird. In der c‘t 27/2023 war ein Bericht über CO2 Messgeräte und der Aranet4 hat mich trotz des hohen Preises mein Interesse gefunden. Das hat sich im Betrieb bestätigt. Mit dem Gerät und der App bin ich sehr zufrieden. Was negativ zu erwähnen ist, ist die starke Preiserhöhung um €30 wohl zum Februar 2024. Ende Januar hab ich noch €179 bezahlt, aktuell kostet er €209. Versand kommt schnell aus Lettland (EU) mit €10 VK.

## Features

- The perfect companion for indoor use, allows you to monitor CO2 levels, temperature, relative humidity, and air pressure in real time
- Easy to use for everyone – the colour coding and the optional buzzer warns you when the CO2 concentration becomes too high
- The energy-efficient e-ink display ensures a particularly long battery life of the radio (up to 4 years)
- Smartphone app to view and analyze historical data up to 14 days history (supports iPhone and iPad with iOS 12 or above, Android devices with Oreo 8.0 or above, compatible with Bluetooth 4.1 or above)
- Uses non-dispersive infrared sensor technology (NDIR) for the most accurate and reliable CO2 measurements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07YY7BH2W |
| Item model number | TDSPC003.001 |
| Language | English, Spanish |
| Manufacturer | SAF |
| Product Dimensions | 7.01 x 7.01 x 2.39 cm; 104 g |

## Product Details

- **Battery description:** Alkaline
- **Brand:** SAF
- **Colour:** white
- **Item weight:** 104 Grams
- **Product dimensions:** 7W x 2.4H centimeters

## Images

![Aranet4 Home: Wireless Indoor Air Quality Monitor for Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History - Image 1](https://m.media-amazon.com/images/I/71neVF9YJvL.jpg)

## Questions & Answers

**Q: Is this product easy to use anywhere?**
A: The Aranet4 HOME is wireless and portable, running on batteries for up to 4 years. Its compact size lets you carry it anywhere — home, office, or school — with no cables needed.

**Q: What sensor technology is used to measure CO2?**
A: The Aranet4 HOME uses NDIR (nondispersive infrared) sensor technology to deliver precise, reliable CO2 readings — one of the most accurate methods available for indoor air quality monitoring.

**Q: Is there an app to go along with the monitor?**
A: Yes! Download the free smartphone app to view real-time readings, adjust monitor settings, and access up to 90 days of data history — all in one convenient, user-friendly interface.

**Q: How much data history does the app store?**
A: The free smartphone app stores up to 90 days of data history, so you can review trends and track air quality changes over time with easy-to-read graphs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ excellent produit
*by B***D on 24 February 2026*

Excellent produit. Les mesures son fiables l'appareil est compact et utilise la technologie NDIR. Il est possible de le recalibrer. L'application pour téléphone mobile est très intuitive elle offre une foule de paramètres et permet une visualisation sous forme de courbes des différentes mesures (CO2, température, hygrométrie, pression atmosphérique) sur une journée, une semaine ou une période au choix. La connexion utilisée dans mon cas est le Bluetooth, elle est extrêmement réactive et économe en batterie. Hormis sont prix élevé il s'agit d'un excellent produit.

### ⭐⭐⭐⭐⭐ Handlicher CO2 Sensor mit sehr guter App
*by P***L on 11 February 2024*

Der CO2 Sensor ist gut und sicher verpackt. Macht einen wertigen Eindruck und sieht gut aus. Dank der Verwendung normaler Batterien und seiner geringen Größe kann man ihn einfach mal in ein anderes Zimmer stellen oder mitnehmen. Viele andere vergleichbare Geräte haben einen kurzzeitigen Akkubetrieb oder erfordern einen Netzanschluss. Die Bluetooth-Verbindung mit der zugehörigen App ging schnell und einfach. Die Verbindung ist stabil. Kein Re-Connect erforderlich wenn man zB außer Reichweite war. Die Anzeige am Gerät ist gut ablesbar. Meist schaue ich aber über die App, da hier auch der zeitliche Verlauf angezeigt wird. In der c‘t 27/2023 war ein Bericht über CO2 Messgeräte und der Aranet4 hat mich trotz des hohen Preises mein Interesse gefunden. Das hat sich im Betrieb bestätigt. Mit dem Gerät und der App bin ich sehr zufrieden. Was negativ zu erwähnen ist, ist die starke Preiserhöhung um €30 wohl zum Februar 2024. Ende Januar hab ich noch €179 bezahlt, aktuell kostet er €209. Versand kommt schnell aus Lettland (EU) mit €10 VK.

### ⭐⭐⭐⭐ Attractive CO2 temperature and humidity monitor. However, app needs some improvement.
*by J***I on 25 May 2024*

Living in a closed space with generally poor ventilation in an apartment, is the reason why I purchase this product. However , after been using it for over 2 weeks now, I have come into conclusion that most of us may not even need it because the CO2 in a closed space in my apartment rarely goes above 800ppm throughout the day. The only situation where it can go above 800ppm is when gas stove is used. However, carbon dioxide monitor or reader can be useful if you live in a rather tight space whereby there are three or more occupants as CO2 is mainly produced by respiration or breathing other than from burning gas. As you can see in the picture here, the screen on the aranet 4 is quite a bit sharper and contrasty than the inkbird and the design is more attractive due to semi transparent plastic case and the underlying board design is partially visible whereas inkbird has a bit of off-white coloration. The measurement is very similar to one another due to similar NDIR sensor used. As mentioned, the main deciding factor whether you need this or not is how many occupants in a space or how crowded the space is. More people occupying same space at same time, the higher the CO2 produced. For the app, I like how you can just drag along the chart to see the reading. However, aranet app only allows 7 days of data to be kept on the device before it gets overwritten where as the inkbird can keep data on the device for up to 30 days. Basically, aranet app is more polished , however, data storage is only limited to 7 days when set to 5 minutes measurement interval instead of 30 days (on device) to 1 year on inkbird (only when is synced to the phone). Addendum : Aranet has released a firmware in Dec 2023 that allows you set how long the data can be stored on the device and this depends the measurement interval, i.e. 2 minutes interval equivalent to 7 days of storage; 5 minutes for 15 days ; and 10 minutes for 30 days of storage . Besides CO2 readings, you will also get ambient temperature, humidity and atmospheric pressure readings. However, this device is not equipped with complete suite of air quality sensors, what is missing out here are quite substantial and these include volatile organic gas (VOC) , radon, particulate matters , carbon monoxide which are important parameters to determine the air that you breath is safe. And of course to have all these sensors included in an air quality monitor will costs a fortune for regular consumer. The Bluetooth range on the Aranet 4 is slightly shorter than inkbird from the distance I tested. 7-8 meters on inkbird vs 6 metres on aranet4. aranet 4 has a hidden feature of boosting it's Bluetooth range at presumably small cost of battery life by a toggle under Bluetooth setting of the app to about the same range as inkbird. One important thing when placing the double AA battery in, is quite different from other device, make sure you place the positive side first then only negative due to there is a plastic lip at the positive side. Battery is super long lasting due to energy efficient E ink display and low energy Bluetooth and especially interval measurement is set to 5 or 10 minutes. Downside to this is that you can only get Bluetooth connection to sync the data to phone rather than wifi and can't assess the data if not in the Bluetooth range or if away from home. Aranet claims there is a smart home integration app called homey but I guess it can be complicated to setup due to the integration is not mainstream like homekit or google home.

## Frequently Bought Together

- SAF Aranet4 Home: Wireless Indoor Air Quality Monitor for Office or School (CO2, Temperature, Humidity and More) Portable, Battery Powered, E-Ink Screen, App for Configuration & Data History
- SAF Aranet Radon Detector for Home: 10-Min Measurement, Temperature, Relative Humidity, Pressure, E-Ink Display, 7-Year Battery, Portable with Free App, Bq/m3 & pCi/L Selectable

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-07*