--- title: AQ7 BOARD description: test1 image: https://check-up.it/hubfs/Products_Images/checkup_AQ7.jpg --- - [home](https://check-up.it/homepage?hsLang=en) - products - company - partners - [case studies](https://check-up.it/case-history?hsLang=en) - [news](https://check-up.it/news?hsLang=en) - [contacts](https://check-up.it/contacts?hsLang=en) menu - [Products](https://check-up.it/products?hsLang=en) - [OEM modules & Solutions](https://check-up.it/products?filter=oem-modules-and-solutions&hsLang=en) - [Software Solutions](https://check-up.it/products?filter=software-solutions&hsLang=en) - [Aircub](https://www.puricraft.com/pages/aircub) - [![menu-chisiamo-thumb](https://check-up.it/hubfs/layout/menu-chisiamo-thumb.jpg) about us](https://check-up.it/about-us?hsLang=en) - [![menu-metodo-thumb](https://check-up.it/hubfs/layout/menu-metodo-thumb.jpg) method](https://check-up.it/method?hsLang=en) - [![menu-tecnologie-thumb](https://check-up.it/hubfs/layout/menu-tecnologie-thumb.jpg) technologies](https://check-up.it/technologies?hsLang=en) - [![menu-careers-thumb](https://check-up.it/hubfs/layout/menu-careers-thumb.jpg) careers](https://check-up.it/careers?hsLang=en) - [Technological](https://check-up.it/technological-partners?hsLang=en) - [Strategic](https://check-up.it/strategic-partnership?hsLang=en) - [home](https://check-up.it/homepage?hsLang=en) - products - [Products](https://check-up.it/products?hsLang=en) - [OEM modules & Solutions](https://check-up.it/products?filter=oem-modules-and-solutions&hsLang=en) - [Software Solutions](https://check-up.it/products?filter=software-solutions&hsLang=en) - [Aircub](https://www.puricraft.com/pages/aircub) - company - [about us](https://check-up.it/about-us?hsLang=en) - [method](https://check-up.it/method?hsLang=en) - [technologies](https://check-up.it/technologies?hsLang=en) - [careers](https://check-up.it/careers?hsLang=en) - partners - [Technological](https://check-up.it/technological-partners?hsLang=en) - [Strategic](https://check-up.it/strategic-partnership?hsLang=en) - [case studies](https://check-up.it/case-history?hsLang=en) - [news](https://check-up.it/news?hsLang=en) - [contacts](https://check-up.it/contacts?hsLang=en) ![](https://check-up.it/hs-fs/hubfs/Products_Images/checkup_AQ7.jpg?width=700&name=checkup_AQ7.jpg) OEM modules and solutions # AQ7 BOARD - AQ7 SENSOR BASED - DIGITAL OUTPUT - COMPENSATED - ANALOG CONNECTION - FACTORY CALIBRATED   [vertical\_align\_bottom Product datasheet ENG](https://check-up.it/hubfs/Products_Datasheet/ENG/checkup_AQ7%20board_datasheet_ENG.pdf?hsLang=en) [vertical\_align\_bottom Product datasheet ITA](https://check-up.it/hubfs/Products_Datasheet/ITA/checkup_AQ7%20board_datasheet_ITA.pdf?hsLang=en) The AQ7 board is designed to maximize the performance of their sensors, offering high precision and signal stability, even with fluctuations in temperature and humidity. Its form factor ensures compatibility with existing market solutions, integrating digital communication and a compensation algorithm to deliver directly usable PPB measurement data. The AQ7 board provides a digitally calibrated output in RS485 or I2C (depending on the version), facilitating easy integration with control and transmission units. The integrated compensation algorithm adjusts for the sensor's specific characteristics, temperature, and other sensor signals (for the SO2 version). Additionally, two analog outputs are available: a raw output for easy interchange with competing solutions, and a factory calibrated, compensated output, ensuring accuracy at a competitive price. ## Key features **AQ7 BASED** Based on AQ7 sensors which guarantee high precision and stability of the signal over time even with variations in temperature and humidity. **DIGITAL OUTPUT** The board provides a digital calibrated output in RS485 or I2C (depending on the versions) for an easy integration with control and transmission units. **COMPENSATED** Each board has an integrated compensation algorithm dedicated to the mounted sensor that processes the specific characteristics of the sensor itself, the temperature monitored on board the card, the signal of the other sensors (valid for the SO2 version). **ANALOG CONNECTION** The board also provides two analog outputs: a raw output comes directly from the amplification stages and is similar (even in the connector) to the competition solutions for an immediate exchange. The second output is calibrated and compensated. **FACTORY CALIBRATED** The solution comes with factory calibration which guarantees a high level of accuracy ## Product applications - Smart City Environmental monitoring - Industrial Environmental monitoring - Indoor Air Quality monitoring ## Technical specifications ## AQ7 sensors | **SENSOR** | **RANGE** | **LOW DET. LIMIT** | **RESOLUTION** | | --- | --- | --- | --- | | AQ7 - CO | 0-20 ppm | 40 ppb\* | 10 ppb\* | | AQ7 - NO2 | 0-1 ppm | 5 ppb\* | 5 ppb\* | | AQ7 - O3 | 0-1 ppm | 5 ppb\* | 5 ppb\* | | Q7 - SO2 | 0-1 ppm | 5 ppb\* | 2 ppb\* | \* Specifications are based on measurements made with cylinder gases using a flow rate of 500 ml/min and are valid at 20°C, 50 %RH and 1013 mBar. Performance characteristics outline the performance of sensors supplied within the first three months.   ## Environmental sensor | **Temperature** | Range: -40°C to +85°C Accuracy: ±0.2°C | | --- | --- | | **Humidity** | Range: 0-100 RH Accuracy: ±1.8% RH |   ## Board specifications | **Power supply** | 5V DC | | --- | --- | | **Operating temperature** | -30°C to +50°C | | **Temperature sensors** | Range: -40°C to +85°C Accuracy: ±0.2°C | | **Analog output 1** | Raw signal, not calibrated | | **Analog output 2** | 0V to 3V, calibrated and compensated | | **Digital output** | RS485 or I2C | | **Dimensions** | 39.1 x 44.6 x 29 mm with sensor included | | **Weight** | 8.5 gr without sensor | | **Certifications** | CE, RoHS | [< view all products](https://check-up.it/case-history?hsLang=en) ![logo checkup](https://check-up.it/hs-fs/hubfs/logo%20checkup.png?width=1500&name=logo%20checkup.png) Fill out the form to contact us and ask how **checkup** can help you realize your projects. --- **Check Up S.r.l.** Share capital 119.000 i.v. VAT n° IT03036150260 - Tax Code and Companies Register of Treviso 01201610936 Company with a legal rating, AGCM procedure RT 5340 Digital Agency: Alea.pro --- [Privacy Policy](https://143575071.hs-sites-eu1.com/privacy-policy?hsLang=en) [Cookie Policy](https://143575071.hs-sites-eu1.com/cookie-policy?hsLang=en) [Terms & Conditions](https://check-up.it/hubfs/Check%20Up%20srl_terms%20and%20conditions_ITA%20and%20ENG_2025.pdf?hsLang=en) [Quality Policy](https://check-up.it/hubfs/layout/politica-qualita-02.pdf?hsLang=en) [Certification ISO 9001-2015](https://check-up.it/hubfs/Certificato%20ISO9001.pdf?hsLang=en) [![logo-fesr](https://143575071.fs1.hubspotusercontent-eu1.net/hub/143575071/hubfs/layout/logo-fesr.png?width=200&name=logo-fesr.png)](https://check-up.it/hubfs/layout/por_fesr_checkup.pdf?hsLang=en) [![simest-logo](https://143575071.fs1.hubspotusercontent-eu1.net/hub/143575071/hubfs/layout/simest-logo.png?width=129&name=simest-logo.png)](https://check-up.it/hubfs/documents/bando-simest.pdf?hsLang=en) [![iNEST](https://143575071.fs1.hubspotusercontent-eu1.net/hub/143575071/hubfs/iNEST.png?width=200&name=iNEST.png)](https://check-up.it/blog/inest?hsLang=en) [![logo-PR-Veneto-FESR_](https://143575071.fs1.hubspotusercontent-eu1.net/hub/143575071/hubfs/logo-PR-Veneto-FESR_.png?width=200&name=logo-PR-Veneto-FESR_.png)](https://check-up.it/blog/urbinfo?hsLang=en) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Checkup", "url" : "https://check-up.it/blog/author/checkup" }, "dateModified" : "2026-05-15T09:16:49.097Z", "datePublished" : "2025-02-20T09:58:24.000Z", "headline" : "AQ7 BOARD", "image" : [ "https://check-up.it/hubfs/Products_Images/checkup_AQ7.jpg" ], "mainEntityOfPage" : { "@id" : "https://check-up.it/blog/aq7-board", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://check-up.it/hubfs/logo%20checkup.png" }, "name" : "Check Up Srl" } } ```