---
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: "275151CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Saf"
url: https://www.desertcart.sn/products/335645147-aranet4-home-wireless-indoor-air-quality-monitor-for-office-school
store_origin: SN
region: Senegal
---

# Smartphone app with 90-day data history Up to 5 years battery life with e-ink display NDIR CO2 sensor for pinpoint accuracy 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:** 275151CFA
**Availability:** ✅ In Stock

## Summary

> 🌿 Breathe Smart, Live Better — Your Air Quality Guardian

## 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?** 275151CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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

- • **Data-Driven Wellness:** Access up to 90 days of historical air quality trends via the intuitive Aranet4 app—empowering smarter indoor environment decisions.
- • **Precision Air Insight:** Industry-leading NDIR sensor delivers ultra-reliable CO2, temperature, humidity, and pressure readings in real time.
- • **Sleek, Portable Design:** Compact, lightweight, and battery-powered—take your air quality monitor anywhere and join the movement for healthier indoor spaces.
- • **Instant Alerts, Zero Guesswork:** Color-coded visual indicators and optional buzzer warn you immediately when CO2 levels rise, ensuring optimal air quality at work or home.
- • **Effortless Long-Term Monitoring:** Power-efficient e-ink display and smart Bluetooth sync keep you informed for up to 5 years on just 2 AA batteries.

## Overview

The SAF Aranet4 Home is a compact, wireless indoor air quality monitor designed for professionals and families who prioritize health and productivity. Featuring a high-precision NDIR CO2 sensor, it tracks CO2, temperature, humidity, and atmospheric pressure with real-time alerts via a color-coded e-ink display and optional buzzer. Its ultra-low power consumption enables up to 5 years of battery life on 2 AA batteries. The accompanying smartphone app offers seamless Bluetooth syncing and up to 90 days of historical data, empowering users to optimize their indoor environments effortlessly. Manufactured in the EU, this portable device is ideal for offices, schools, and homes seeking data-driven air quality management.

## Description

The Aranet4 HOME sensor is easy to use battery powered CO2 level monitoring device for indoor use. Meter additionally measures temperature, humidity and atmospheric pressure. It's equipped with two types of indicators to warn about the state of the air quality.Visual CO2 indicator represents the level of the CO2 concentration in the roomSound indicator alarms if the CO2 concentration becomes too highSmall form-factor makes Aranet4 very portable. Take it with you and be aware of the indoor air quality around you!CO2 Reading LevelsGreen represents a normal level (below 1000 ppm)Yellow represents an average level (1000 to 1400 ppm)Red represents high level (above 1400 ppm)*For more information visit our web page and download the user manualProduct Key FeaturesTracks CO2, temperature, relative humidity and the atmospheric pressureManufactured in the EUPrecise data measurements ensured by the use of the best quality componentsPower efficient gadget with up to 5 years long battery lifeUltra-portable form factor and very simple to useAranet HOME app helps to follow historical air quality data and adjust device settingsUses the nondispersive infrared (NDIR) sensor to measure CO2Technical SpecificationMeasurements of CO2 (carbon dioxide), temperature, relative humidity, atmospheric pressureFor indoor use onlyMade from polycarbonatePowered by 2 AA Alkaline batteries (batteries included)Battery life up to 5 yearsData transmission after 1, 2, 5, 10 minutesData encryptionWeights 104g (3.7oz)Dimensions 70x70x24 mm/2.76x2.76x0.94 inchesOperating humidity 0% to 85% non-condensingOperating temperature 0C to 50C (32F to 122F)

Review: 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.
Review: 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.

## Features

- The perfect companion for indoor environments, allowing you to monitor CO2 levels, temperature, relative humidity, and atmospheric pressure in real-time
- Easy for anyone to use – the color coding and the optional buzzer warns you when the CO2 concentration gets too high
- Power-efficient e-ink display ensures super long battery life for this wireless device (up to 5 years)
- Smartphone app for viewing and analyzing historical data up to 90 days history
- Uses nondispersive infrared sensor (NDIR) technology for most precise 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/61EVDR3FJpL.jpg)

## Questions & Answers

**Q: Why do I need monitor CO2 concentration?**
A: High CO2 levels can negatively affect your well-being, comfort, and productivity. For example, if CO2 levels reach 1000 ppm, your cognitive abilities drop by 15%. At 1400 ppm and above, they decrease by a staggering 50%.

**Q: What is the NDIR sensor and why is it preferred over other types of sensors?**
A: Because it provides a higher precision than regular electrochemical sensors because CO2 is uniquely detectable with no interference from other gasses. Besides that the lifespan of the NDIR sensor is much longer and less recalibration is needed.

**Q: Why is Aranet4 considered the gold standard in CO2 monitoring?**
A: Aranet4 excels with multi-sensor accuracy, real-time alerts, app connectivity, and user-friendly design, highly praised by numerous satisfied customers.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*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.

### ⭐⭐⭐⭐ Review
*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.

### ⭐⭐⭐⭐⭐ Review
*by S***S on 7 June 2024*

I sleep with my wife in a small room and I've always been curious as to the amount of CO2 that accumulates if we have the door closed. We soon discovered that closing the bedroom door with only one person sleeping sent the CO2 levels quite high. Needless to say because of our new monitor we now sleep with the door open. The bluetooth app is neat and keeps a running log/graph of your CO2 levels. The batteries are supposed to last for a very long time. .. Not much to complain about functionality wise. The low/med/high level indicators along with the precise reading display are nice and easy to read. Very pricey and only splurged on it because it was recommended by a family member. Glad I purchased it but I still smart when I think how much I had to pay for it. I would recommend to anyone who is concerned about the air quality within the 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sn/products/335645147-aranet4-home-wireless-indoor-air-quality-monitor-for-office-school](https://www.desertcart.sn/products/335645147-aranet4-home-wireless-indoor-air-quality-monitor-for-office-school)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-11*