Home 9 Gas Type: Carbon Dioxide CO2
Calmo – USB CO2 Monitor

Calmo – USB CO2 Monitor

Introducing the Calmo – USB Air Quality Monitor.

This NDIR CO2, Temperature, and Humidity Monitor revolutionises air quality monitoring with its comprehensive data, customisable alarm levels and user-friendly interface. With 8-hour and 24-hour peak and average readings, traffic light display, and buzzer alerts, you can confidently manage and optimise your indoor environment.

Choose between 230V or USB C power options for seamless integration into your existing setup. Experience enhanced air quality monitoring and make informed decisions for a healthier, more comfortable space with our advanced NDIR CO2, Temperature, and Humidity Monitor. The Calmo can be powered with either 230V or USB C power.

Meets the requirements for:

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CO2MC 230V & Free Remote – CO2, Temp & RH Monitor

CO2MC 230V & Free Remote – CO2, Temp & RH Monitor

The Duomo CO2MC has been developed to monitor levels of Carbon Dioxide in offices, schools, kitchens or labs. This is the 230V version, also available in 24V. The monitor has a backlit traffic light display and relay output. As CO2 levels increase the backlight will change from green to Yellow. If the levels continue to rise the backlight will change to red. This accurate NDIR sensor with a permanent power source and is compliant with Building Regulations Document F Vol 2 CO2 & Ventilation.

FREE CO2MC Remote with every order while stocks last

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CO2MC 24V & Free Remote – CO2, Temp & RH Monitor

CO2MC 24V & Free Remote – CO2, Temp & RH Monitor

The Duomo CO2MC 24V has been developed to monitor levels of Carbon Dioxide in offices, schools, kitchens or labs. This is the 24V version, also available in 230V. The monitor has a backlit traffic light display. As CO2 levels increase the backlight will change from green to Yellow. If the levels continue to rise the backlight will change to red.

FREE CO2MC Remote with every order while stocks last

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Cellair – Pub Cellar CO2 Remote Display Monitor

Cellair – Pub Cellar CO2 Remote Display Monitor

The Duomo Cellair is a Carbon Dioxide alarm unit for use in Pub Cellars. It monitors levels of Carbon Dioxide and when levels exceed alarm thresholds the alarm sounds and provides a 230V output to either an extractor fan or a gas isolating valve.

Plug and play unit can be setup within 5 minutes. Remote Display Unit included and up to 3 RDUs can be connected if required.

For more information on the CellAir along with its benefits check out our article Safeguarding the Pub Experience with CO2 monitoring.

 

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Aranet4 PRO No Display & Free Anti Theft Wall Bracket

Aranet4 PRO No Display & Free Anti Theft Wall Bracket

Aranet4 sensor is an innovative, stand-alone device for effortless monitoring of indoor air quality – CO2, relative humidity, temperature and atmospheric pressure. The Aranet4 PRO sensor is compatible with Aranet Cloud. This service is an industrial grade solution for IoT ecosystems & remote management. Personalise your data with custom dashboards, graphs and user management. Learn more

The Aranet4 HOME is here. A wireless AA battery operated CO2 monitor. App enabled, custom reporting.

Want to know the Aranet4 HOME & PRO features and differences?

Includes FREE Anti Theft Wall Bracket with every Aranet! (Not included as standard by other companies)

FREE SHIPPING ON ALL ARANET4 PRODUCTS. 

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Welcome to the Duomo Knowledge Centre

This is the UK’s Go-To resource for Gas Detection & Safety Equipment and is updated regularly. If we haven’t already written about a particular aspect that you’re interested in, then please submit your enquiry here and one of our qualified team of engineers will take a look.

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Frequently Asked Questions

Can I buy products online at Duomo.co.uk

Yes – you can browse our products, see prices and purchase online. Not all prices are available online so we would ask that you contact us for more information on those products on +44 (0)1905 797989

Do your prices include VAT?

All prices at Net prices shown in GBP (£) & exclude Value Added Tax.

VAT is added at checkout when purchasing online to all orders dispatched within the UK.

Can I have my order delivered to a different delivery address?

Yes. When you place your order you can add a different delivery address. If the billing address is different to your delivery address the invoice will always be sent to your billing address. Please remember your billing address is the address at which your payment card is registered.

Are all the products on your website in stock?

We make every effort to ensure that products listed on our website are currently in stock & available for despatch. However, if an item is out of stock due to high demand, we will contact you as soon as possible to either suggest a carefully selected alternative, or to advise you of a delivery date.

Can I order over the telephone?

Yes. You can place an order with us over the telephone by calling us on +44 (0)1905 797989 between 9.00am & 16:45pm Monday to Friday.

Do you offer any discounts?

Discounts may be available for large quantity purchases. The item price is calculated when you increase / decrease the number of units required on any product page. Please ask our sales team about multiple quantity purchases on the products that are not available to purchase online.  Call +44 1905 797989  or email [email protected] with your details and the product(s) you are interested in and we will provide you with a quotation.

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Support & Service

If you require technical assistance or an annual service on this product please contact us and we will be happy to help. Our qualified team of engineers are available Nationwide.

Duomo (UK) Ltd

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