YES AIR - 8 Channel IAQ Monitor

Available on order
Tax excluded Delivery in 2-4 weeks

If you need a customized offer, or you can't find the configuration you need, do not hesitate to contact us.

We also offer the post sale services

  • Ordinary and extraordinary maintenance
  • Installation
  • Workers training
  • Spare parts
  • Calibration

8 Channel IAQ Monitor

The YES AIR is a battery powered, portable air quality detection and data logging instrument designed for intermittent or continuous indoor air quality monitoring.

Available in two models (Pump or Di fusion), each offers multi-channel operation, a selection of more than 30 different plug and play sensors (including a particulate sensor) and a huge capacity data logging SD memory card. Both models come with one temperature sensor, one relative humidity (RH) sensor, the capacity for 5 internal gas sensors consisting of a maximum of three electrochemical toxic gas or oxygen sensors plus two high current draw sensors such as an infrared, PID or catalytic, plus an auxiliary port for connection to the YES DUST, a general purpose particulate sensor.

Sensor readings, battery level and data logging status can be viewed live on the multi-line, backlit, LCD display. The optional YES Viewer Logger package consists of a 2 GB SD memory card with card reader, a USB cable and YES Viewer software. The card reader can be used to store or transfer data. Alternatively, data can be downloaded to a computer using the mini USB connection. The YES Viewer PC software allows users to analyze and graph data.

An optional sampling probe is available with the Pump model. The probe has a 10 inch wand and 30 inches of tubing that fits onto the nozzle and allows you to reach into areas that are di cult to access.


  • YES-AIR pump model: internal sampling pump that automatically takes samples from the surrounding environment.
  • YES-AIR-D diffusion model: the air sample is spontaneously diffused to the sensors.

The indicated price refers to the purchase of the instrument only: contact us to define the sensors to be implemented and to know the final price.

Key features

  • Capacity for 1 temperature, 1 RH sensor and 5 internal gas sensors, plus 1 external particulate sensor
  • More than 30 plug & play sensors available to choose from, including electrochemical, catalytic, infrared & PID
  • Multi-function, easy to use menu
  • Light weight, contoured & comfortable to hold
  • LCD displays readings for all sensors, battery level and logging status » Sampling with an internal sample draw pump or by di fusion
  • High capacity data logging with 2GB SD memory card
  • Data logging software for collecting, analyzing and graphing data
  • RoHS compliant circuit boards
  • CE certified


  • Residential buildings
  • Commercial buildings
  • Hospitals
  • Schools
  • Airports
  • Research facilities

What’s included

  • Yes Air
  • Case


Ammonia (NH3) electrochemical 0 - 50 ppm
Arsine (AsH3) electrochemical 0 - 2 ppm
Carbon dioxide (CO2) infrared 0 - 5,000 ppm
Carbon dioxide (CO2) infrared 0 - 10,000 ppm
Carbon dioxide (CO2) infrared 0 - 20% volume
Carbon dioxide (CO2) infrared 0 - 5% volume
Carbon dioxide (CO2) infrared 0 - 100% volume
Carbon monoxide (CO) electrochemical 0 - 50 ppm
Carbon monoxide (CO) electrochemical (H2 compensated for use in H2 background) 0 - 50 ppm
Chlorine (Cl2) electrochemical 0 - 5 ppm*
Chlorine dioxide (ClO2), electrochemical 0 - 1 ppm
Combustibles (catalytic) 0 - 100% LEL
Ethylene (C2H4) 0 - 200 ppm
Ethylene oxide (C2H4O) 0 - 20 ppm
Fluorine (F2) electrochemical 0 - 2 ppm*
Formaldehyde (CH2O) electrochemical 0 - 10 ppm
Hydrogen (H2) electrochemical 0 - 1,000 ppm
Hydrogen chloride (HCl) electrochemical 0 - 30 ppm*
Hydrogen cyanide (HCN) electrochemical 0 - 100 ppm
Hydrogen fluoride (HF) electrochemical 0 - 10 ppm*
Hydrogen sulphide (H2S) electrochemical 0 - 50 ppm
Methane (CH4) infrared 0 - 5% volume
Nitric oxide (NO) electrochemical 0 - 100 ppm
Nitrogen dioxide (NO2) electrochemical 0 - 5 ppm
Oxygen (O2) electrochemical 0 - 25% volume
Ozone (O3) electrochemical 0 - 1 ppm*
Phosphine (PH3) electrochemical 0 - 1 ppm
Silane (SiH4) electrochemical 0 - 50 ppm
Sulphur dioxide (SO2) electrochemical 0 - 20 ppm
TVOCs (PID) 0 - 300 ppm
TVOCs (PID) 0 - 30 ppm
*Sensors only available with YES-AIR-D diffusion model


It is possible to configure the instrument (already supplied with temperature sensor and humidity sensor) by implementing the desired sensors listed above, but respecting the following limits::

  • up to 3 different electrochemical sensors;
  • 1 PID sensor;
  • 1 IR sensor;
  • 1 powder sensor.
Battery life
Rechargable 3.6 V NiMH battery pack (8 hours continuous operation time)
From 10°C to 50°C
H:197 mm L:78 mm P:98 mm
0,6 kg
Standard CE I.S. EN61010 - 1:2001 (ed.2)
USB 2.0
Caricabatterie 100-240V, 50-60Hz
>1 million data points data logging to SD flash card (optional)
0-99% RH without condensation

Specific References

    I do not have an account yet. How can I create an account? ...

    To register on the site and create your account:

    1. Click on the register button in the main menu

    2. Enter the required and possibly optional data

    3. Enter a password that contains at least one uppercase character, one lowercase character and one digit, and is at least 8 characters long

    4. Accept the privacy terms

    5. Click the save button

    If everything was successful, you will have created your account.

    On the other hand, if registration is not successful from your device, please contact us

    We will be happy to help you Contact us >

    How does Comastri Distribution's product delivery service work? ...

    Shipping is paid for by us and free of charge for orders over €200 by contracted express courier for shipments throughout Italy and Europe. For shipments to non-EU countries, the service will be charged on the invoice and must be agreed upon in advance with our sales department.  Find out more >

    How long does it take to deliver? ...

    We use an express courier company for shipments throughout Italy and EU countries with the following delivery times, which vary depending on the product. Within each product sheet, you will be able to see the delivery time (days or weeks). On dispatch, the tracking of the order will be shared, in order to follow the tracking of the product until the moment of delivery.

    I need the documentation, the instruction manual, the catalogue of a product or a company. Who can I contact? ...

    A customised catalogue for each product can be downloaded from the shop.

    For any other documentation, instruction manuals or product and company catalogues not available through the site, please contact us. We will be happy to send you the material you are looking for.

    Request material >


    I have a question or problem relating to the installation/service of a product, who can I contact? ...

    The Comastri Distribution technical team is on hand to provide support

    Contact us for assistance >

    How does the technical assistance service work to repair faulty or defective goods?  ...

    In the event of faulty or defective goods, you can take the following steps:

    1.    Download the RMA Form

    2.    Send the form by email to

    Comastri Distribution staff will take over your case, assess your specific situation and get back to you as soon as possible.

    Once you have received authorisation for sending from the personnel in charge, you can send the equipment. All shipping information will be forwarded by Comastri Distribution personnel.

    If the material is found to be under warranty, Comastri Distribution will take care of the necessary technical assistance.

    If the material is not under warranty, a quotation for service will be sent.


    Contact us >

    I would like to return an item. What are Comastri Distribution's return and refund policies? ...

    We do not accept returns and/or claims unless agreed in advance with our sales department. You will have to send us an email to within 8 days of receipt of the goods, after which they will be considered accepted.

    Further information >

    What is operational leasing?  ...

    Operational leasing provides the benefit of deferred payment over time, allowing the client to adapt the equipment according to its needs. It also guarantees shortened depreciation of assets, no risk of becoming obsolete at its own expense and, of course, more precise business cost planning. 

    How can I request a quote for operational leasing?  ...

    To request a quote for operational leasing, simply fill in our forum, and you will be emailed immediately

    Download the free quotation tool >

    Which payment methods are accepted?

    The shop accepts the following payment methods: bank transfer, credit card, Paypal.

    In the event of a bank transfer, the order will be processed as soon as the payment is received by the bank. The time taken to receive the transfer may vary from 1 to 3 days.

    Using a credit card or Paypal will result in immediate confirmation of the order.

    The shop accepts the most popular credit card types: Visa, Mastercard, American Express and Discover. Go to the dedicated section for more information on payment methods

    Find out more >

    Is it possible to send a business order with a reference number, under the same conditions, after purchasing from the ecommerce site? ...

    First, register with your company data; you can then send us the same order on your company letterhead, which includes your order number.

    If you wish, you can contact us to agree on a different payment for orders over €1000.

    On receipt of your order in the e-shop, you will be notified of the order confirmation by email, then the payment arrangements will be processed in the client account.

    Find out more >