TSI Airflow IAQ-Calc 7515 Indoor Air Quality Meter

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  • Measures CO2 levels up to 5000ppm with an accuracy of 3.0%
  • Ideal for conducting IAQ evaluations and verifying HVAC system performance.
  • Supplied with NIST Certificate of Calibration.

rrp £435.00

now £389.00 (Ex. VAT) £466.80 (Inc. VAT)

rrp £435.00


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"High quality CO2 sensor for IAQ evaluations"

  • Description

    TSI Airflow IAQ-Calc 7515 Indoor Air Quality Meter

    The TSI Airflow IAQ-Calc 7515 Indoor Air Quality Meter offers highly accurate carbon dioxide measurements for monitoring indoor air quality. The TSI IAQ 7515 is the perfect carbon dioxide tester for verifying HVAC system performance, conducting indoor air quality evaluations, testing carbon dioxide concentration levels and evaluating ventilations systems, ensuring compliance with IAQ guidelines. The IAQ-Calc CO2 meter uses a low-drift NDIR CO2 sensor for stable and accurate readings up to 5000 ppm. Businesses are becoming increasingly interested in monitoring conditions that maximise worker productivity with indoor air quality and CO2 levels being a major factor in this.

    TSI Airflow IAQ Calc7515 Features:

    • Low-drift NDIR CO2 sensor for stable, accurate readings
    • Measure carbon dioxide levels from 0 to 5000ppm, accurate to ±3.0%/±50ppm
    • Sampling function records multiple point measurements
    • Track average, max and min values
    • Simple to use, handheld IAQ tester
    • Supplied with NIST Certificate of Calibration
  • Specification

    • CO2 sensor: Dual wavelength non-dispersive infrared (NDIR)
    • Range: 0 - 5000ppm
    • Accuracy: ±3.0% or ±50ppm (whichever is greater)
    • Resolution: 1ppm
    • Response Time: 20 secs
    • Power: 4 x AA batteries
    • Dimensions: 84 x 178 x 44mm
    • Probe Length: 70mm
    • Probe Diameter: 19mm
    • Weight: 270g
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  • Delivery Information

    At we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met. We aim to process all orders we receive within 1 to 3 working days, however from time to time we do have an increased demand for certain products or there might be delays from the manufacturer. In such cases delivery of your equipment may be subject to a minor delay.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK: exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail with your name, address and the items you would like to order for an accurate shipping quote or go to for more information.

    For more information on delivery, please see our terms and conditions.