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Testo 905i Bluetooth Air Temperature Thermometer

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  • Type K air temperature thermometer takes measurements between -50℃ and +60℃
  • Suitable for measuring ambient air temperature as well as inside air ducts and outlets
  • Connects via Bluetooth to free Testo Smart Probes App on iOS/Android
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"A Bluetooth-enabled thermometer for ambient air temperature, ducts, and air vents"

  • Description

    Testo 905i Bluetooth Air Temperature Thermometer

    Suitable for measuring ambient air temperature or the air temperature in ducts or ventilation outlets, the Testo 905i Bluetooth Air Temperature Thermometer is part of the Testo Smart Probes range which means it can communicate its findings to the user’s iOS or Android smartphone where readings are displayed using the free Testo Smart Probes App.

    The Testo 905i measures air temperature using a Type K sensor on a 100mm probe shaft. Readings are shown in Fahrenheit or Celsius from -50 to +60℃ within ±1℃ accuracy and 0.1℃/℉ precision. The results are then sent via Bluetooth to the user’s smartphone/tablet where they are collated and presented in table or diagram form. Furthermore, results can be analysed and saved into Excel or PDF formats for onward distribution.

    Further practical features for the user include the 250h battery life, the lightweight design and the 2 year warranty. Overall, The Testo 905i is a very practical instrument for accurately measuring temperature and the Bluetooth connectivity allows it to link with other Smart Probes devices to provide a really comprehensive measurement picture.

    Testo part number: 05601905

    Testo Smart Probes App

    The Testo Smart Probes App can be downloaded for free from the App Store or Google Play and works with all instruments in the Testo Smart Probes range. The App displays real-time readings on screen for a whole range of variables. Up to six Smart Probes can work in tandem and information can be saved in Excel or as a .pdf report (including pictures). Advanced analysis is available and the Testo Smart Probes range represents a major advance in system inspection and evaluation.

    Testo 905i Key Features

    • Type K sensor measures air temperature in Fahrenheit and Celsius
    • Measurement range from -50 to +60℃
    • ±1℃ basic accuracy / 0.1℃ resolution
    • Connects with smartphones/tablets via Bluetooth
    • Readings displayed on device screen via Testo Smart Probes App
    • Advanced data analysis through Testo smart Probes App
    • Results saved in PDF and Excel formats for onward distribution
    • Small and lightweight
    • 250h battery life
    • 3 x AAA batteries
    • 2 year warranty
  • Specification

    • Measuring range: -50 to 150℃ / -58 to 302℉
    • Accuracy ± 1 digit: ±1℃ / ±1.8℉
    • Resolution: 0.1℃ / 0.1℉
    • Measurement range: 1/sec
    • Available units: ℃, ℉
    • Storage temperature: -20 to +50℃ / -4 to 122℉
    • Battery type: 3 micro batteries AAA
    • Battery life: 250 hours
    • Dimensions: 222mm x 30mm x 24mm
    • Probe shaft dimensions: 100mm (length) x 4mm (diameter)
    • Compatibility: iOS 8.3 or newer / Android 4.3 or newer + Bluetooth 4.0
    • Directives, standards and tests: EU guideline: 2014/30/EU
    • Warranty: 2 years
  • Supplied Accessories

    • Testo 905i Bluetooth Thermometer
    • Testo 905i Bluetooth Thermometer instructions
    • 3 x AAA batteries
    • Calibration protocol
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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.