--- product_id: 359295406 title: "Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable" brand: "saf" price: "€ 390.46" currency: EUR in_stock: true reviews_count: 13 category: "Saf" url: https://www.desertcart.sk/products/359295406-aranet4-home-wireless-indoor-air-quality-sensor-for-home-office store_origin: SK region: Slovakia --- # Bluetooth Data Sync Long-lasting Battery Life Real-time Temp & Humidity Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable **Brand:** saf **Price:** € 390.46 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe Better, Live Smarter — Your Air Quality Guardian ## Quick Answers - **What is this?** Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable by saf - **How much does it cost?** € 390.46 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/359295406-aranet4-home-wireless-indoor-air-quality-sensor-for-home-office) ## 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:** Empower your workspace or home with actionable insights to breathe smarter and feel sharper. - • **Effortless Monitoring:** Color-coded E-Ink display + buzzer alerts keep you instantly informed without screen glare. - • **Precision CO2 Sensing:** NDIR sensor tech delivers ultra-accurate air quality readings you can trust. - • **Seamless App Integration:** Track and analyze 90 days of indoor air trends via a sleek, privacy-first smartphone app. - • **Portable & Power-Efficient:** Compact, battery-powered design with months of use on just 2 AA batteries—freedom to move it anywhere. ## Overview The SAF Aranet4 Home is a portable, battery-powered indoor air quality monitor featuring a high-precision NDIR CO2 sensor, real-time temperature and humidity tracking, and an energy-efficient E-Ink display. It syncs seamlessly via Bluetooth to a free app that stores up to 90 days of historical data, empowering users to optimize their indoor environment with ease and confidence. ## 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 home CO2 monitor - I picked this up on somewhat of a whim, I read a number of online reviews and it was credited as a very good device but pricy. I have to say it's worth it though. The Bluetooth linking and data storing works really well, I can leave it in-situ for a day or two and then come back and pick up the data to show the trends. Battery life seems excellent (can't comment yet given it's designed to be months to a year) and the unit is ideal sized. I'll admit that it feels somewhat fragile, but then again do you really want to be slinging something like this around. No hesitation, glad I picked it up. Review: Its good - Was looking for a CO2 monitor for some time and this does the job nicely. Being portable means I can have it in my study while I work or move it to the bedroom while I sleep, readings correlate pretty well with when I'm feeling groggy from being in the same room too long without opening a window and it has helped me feel clearer headed. The eink display is pretty easy to read and should mean the battery doesnt drain too fast, It transmits its updates over BLE meaning homeassistant picked it up immediately without needing to be paired. App is straightforward and allows you to adjust a couple of settings as well as update the firmware. And it works locally so no accounts needed for the device or app. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07YY7BH2W | | Batteries | 2 AA batteries required. (included) | | Best Sellers Rank | 8,061 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 9 in Airflow & Air Quality | | Customer Reviews | 4.6 4.6 out of 5 stars (1,768) | | Date First Available | 18 July 2019 | | Item model number | TDSPC003.001 | | Language | English, Spanish | | Manufacturer | SAF Tehnika | | Part number | TDSPC0H3.002 | | Power source type | Battery Powered | | Product Dimensions | 7.01 x 7.01 x 2.39 cm; 104 g | ## Product Details - **Colour:** white - **Brand:** SAF - **Product dimensions:** 7W x 2.4H centimetres - **Item weight:** 104 Grams - **Battery description:** Alkaline ## Images ![Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable - Image 1](https://m.media-amazon.com/images/I/71neVF9YJvL.jpg) ![Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable - Image 2](https://m.media-amazon.com/images/I/7108u2PCJrL.jpg) ![Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable - Image 3](https://m.media-amazon.com/images/I/81A0FNyISDL.jpg) ![Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable - Image 4](https://m.media-amazon.com/images/I/71VaRer+SOL.jpg) ![Aranet4 Home Wireless Indoor Air Quality Sensor for Home, Office or School [CO2, Temperature, Humidity and More] Portable - Image 5](https://m.media-amazon.com/images/I/71jgWFULUaL.jpg) ## Questions & Answers **Q: Can the metrics be changed, for example Fahrenheit to Celcius?** A: Yes, there is a dedicated switch to change between Fahrenheit and Celcius. **Q: Is there a warranty? Mine broke after 5 months** A: Hello, the Warranty shall apply to Aranet 24 months after it is shipped to the customer. Please use the Returns Support Centre to claim for a repair or replacement. **Q: This says it has a battery life of ~4 years but I can't see anywhere that says how many hours it lasts between recharging. Can anyone advise, please?** A: I think that literally means the batteries will last 4 years. It's an e-ink display like a kindle so it should only consume energy when updating the display and the electronics must be minimal energy. The exception might be if you use the bluetooth connectivity frequently, I guess. I've had it running constantly on the 2 AA batteries it came with for ~4 months without a problem so far. **Q: Can a single app show the data from multiple devices?** A: There are 2 Android apps available, Aranet4 and Aranet4 Display. Either app allows you to scan for additional sensors. I don't have multiple sensors to test this but from the app screens, I think the former allows you to show multiple sensor readings on the same screen (small for personal viewing) whereas the latter shows the selected sensor in big characters (for public viewing from a distance as a possible use scenario). ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent home CO2 monitor *by A***C on 24 September 2023* I picked this up on somewhat of a whim, I read a number of online reviews and it was credited as a very good device but pricy. I have to say it's worth it though. The Bluetooth linking and data storing works really well, I can leave it in-situ for a day or two and then come back and pick up the data to show the trends. Battery life seems excellent (can't comment yet given it's designed to be months to a year) and the unit is ideal sized. I'll admit that it feels somewhat fragile, but then again do you really want to be slinging something like this around. No hesitation, glad I picked it up. ### ⭐⭐⭐⭐⭐ Its good *by J***N on 29 August 2024* Was looking for a CO2 monitor for some time and this does the job nicely. Being portable means I can have it in my study while I work or move it to the bedroom while I sleep, readings correlate pretty well with when I'm feeling groggy from being in the same room too long without opening a window and it has helped me feel clearer headed. The eink display is pretty easy to read and should mean the battery doesnt drain too fast, It transmits its updates over BLE meaning homeassistant picked it up immediately without needing to be paired. App is straightforward and allows you to adjust a couple of settings as well as update the firmware. And it works locally so no accounts needed for the device or app. ### ⭐⭐⭐⭐⭐ Great product *by K***R on 20 January 2026* Let's me see how much I need to open my window! ## 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.sk/products/359295406-aranet4-home-wireless-indoor-air-quality-sensor-for-home-office](https://www.desertcart.sk/products/359295406-aranet4-home-wireless-indoor-air-quality-sensor-for-home-office) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-06-21*