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Product information "testo 440 Humidity Kit with Bluetooth®"

Climate Measuring Instrument testo 440 Humidity Set with Bluetooth®

The testo 400 and testo 440 air quality measuring instruments measure air velocity, temperature, humidity, CO₂, light and thermal comfort with a single instrument. With suitable probes, they cover all measurement tasks in HVAC systems.

Key Benefits at a Glance

  • One instrument for all indoor climate parameters
  • Intuitive: clearly structured measurement menu for long-term measurements and simultaneous determination of air humidity and air temperature in storage rooms, cold rooms, workspaces and ventilation ducts
  • Precise: calculation of dew point, wet-bulb temperature and absolute humidity
  • Expandable with a wide range of probes
  • Wireless measurement with Bluetooth probes

Scope of delivery

  • testo 440 air quality measuring instrument, 3 x AA batteries, USB cable and calibration report (0560 4401)
  • Humidity and temperature probe (Ø 12 mm) with Bluetooth®* (consisting of humidity and temperature probe head and Bluetooth®handle); 4 x AA batteries and adjustment protocol (0636 9731)
  • Basic case for testo 440 and 1 probe
*Please do not use the probe in condensing atmospheres. For continuous use in high-humidity areas > 80 %rF at ≤ 30 °C for > 12 h > 60 %rF at > 30 °C for > 12 h please contact Testo Service or get in touch with us via the Testo website.

Operating conditions

Battery-powered handheld instrument for measurements in buildings and ventilation systems.

  • For construction sites
  • For production environments
  • For temporary use
  • Not suitable for potentially explosive atmospheres (no ATEX certification)

Typical applications

Building management & facilities management · Skilled trades · Engineering & technical services · Healthcare

Product information

  • Manufacturer: Testo SE & Co. KGaA, Celsiusstraße 2, 79822 Titisee-Neustadt, Germany
  • Manufacturer's part number: 0563 4404

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Volume discounts for bulk orders
We offer additional discounts for larger order quantities. Let us know the quantity required and we will prepare a tailored quotation.
Request a bulk quotation

Technical Details

Operating Conditions: For construction sites, For production environments, For temporary use
Primary Function: Measuring & Testing
Sectors/Industry: Building & Facility Management, Healthcare & Medical Technology, Maintenance & Technical Services, Trades & Workshops

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Our mission is to make industrial procurement for our partners in Germany and Northern Europe as efficient and reliable as possible. We deliver not just products, but engineering expertise and dependable, personal support.

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We aim to be the agile partner for MRO solutions for companies in Scandinavia and Germany – with technical know-how, deep market understanding and a clear focus on industrial safety.

Frequently Asked Questions

Unless stated otherwise on the product, delivery takes 14 working days within Germany and 21 working days to all other delivery countries. For custom-made products we agree the delivery date with you individually.

Many products are available on request in special sizes or colours or with custom printing. Get in touch – we will check the options for your requirements.

We deliver to Germany as well as Denmark, Norway, Sweden and Finland. Deliveries to Austria and Switzerland are available on request.

We supply products from renowned manufacturers. Technical data sheets and safety data sheets are available directly on the product pages; certificates and declarations of conformity are available per product on request.

Use our contact form or call us directly – we usually get back to you within 24 hours on working days.

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