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Smartphone-controllable thermometer BT22WP
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Thermometer BT22WP

Bluetooth® digital thermometer with a smartphone app for temperature control in air ducts

BT22WP – applied in ventilation systems
BT22WP – determining the temperature of liquids
BT22WP – applied in air conditioning systems

Temperature measurement with app control and smartphone connectivity

The digital thermometer BT22WP is equipped with an ultra-thin probe which makes it an ideal device for measuring the ambient temperature of non-aggressive gases in places that are difficult to access; e.g. air ducts, ventilation shafts, and for measuring the temperature of non-aggressive liquids.

Universal temperature measurement in the room air and in liquid

Thanks to its ultra-fine temperature probe with a length of 93 mm, the BT22WP measures the temperature of air as well as non-aggressive gases and non-aggressive liquids in the temperature range between -50° C to +150 °C, when it is impossible to use conventional digital thermometers due to their design. The temperature probe made of high-quality stainless steel is stable and easy to clean. With its compact dimensions and the rod-shaped measuring probe (∅ 4 mm, L = 93 mm) the BT22WP also has the edge over conventional thermometers because of its Bluetooth 4.0 compatibility and the MultiMeasure Mobile app (Android and iOS) supplied.

Evaluation and documentation all included – thanks to the MultiMeasure Mobile app

As a Trotec measuring device of the latest generation, the digital thermometer BT22WP is prepared to meet all requirements of a professional measuring data evaluation and documentation. Via the integrated Bluetooth® interface, the measurement data recorded are transferred easily and conveniently to a smartphone or tablet, where they can be evaluated and recorded professionally using the free MultiMeasure Mobile app (Android and iOS).

In addition to the professional temperature measurement, the beneficial combination of hand-held measuring device and MultiMeasure Mobile evaluation software allows for comprehensive evaluation and documentation of the measuring data – including a variety of analysis options like for example a logging function for long-term measurements, graphic evaluations, report function and data synchronisation with our professional MultiMeasure Studio Professional software via cloud.

Trotec appSensors

Quick measurement of the ambient temperature in places that are difficult to access

Whether you’re a plant mechanic for heating, ventilation and air-conditioning technology, an expert or a caretaker: With the Bluetooth® digital thermometer BT22WP you’re ideally prepared for all temperature measurements in air ducts and vents, in order to provide for a detection of malfunctions and undesired temperature deviations in a way that is smarter than ever. The BT22WP is equally suitable for inspecting and servicing car air-conditioning systems.

Practical, handy, simply good: Beneficial features

The lightweight 90 g BT22WP combines innovative measurement technology in its most compact form with an ease of use. When performing an individual value measurement, the measured value can be updated either via the MultiMeasure Mobile app or directly at the device simply by pushing a button. Apart from the measured value hold function, the smart hand-held measuring device can indicate minimum, maximum and average values and carry out series measurements.

The combination with the professional Multimeasure Mobile app opens up totally new possibilities in the fields of data collection, evaluation as well as reporting. One touch of a button suffices to start the measurement. With its magnetic holder integrated into the housing, the BT22WP allows for hands-free working and a secure grip on magnetic surfaces.

The scope of delivery includes:

  • Bluetooth® thermometer BT22WP
  • Free MultiMeasure app
  • 3 x Batteries AAA 1.5 V
  • Practical hand strap
  • 1 x Operating manual

Why use appSensors? Aren't there a lot of measuring apps already?

Of course there are numerous apps using the electronic components integrated in smartphones, e.g. microphone, gyroscope or camera, for measurements and derived calculations. But these components haven't been designed for precise metrological inspections, instead mainly for an optimized application on a mobile device.

Hence, the obtained results are not in the least comparable with the results achieved by sensors specifically designed for measuring applications. Besides, your smartphone may not be equipped with the suitable electronic component for every measurement task, e.g. for contact moisture measurements or non-contact temperature measurements.

Trotec appSensors on the other hand house professional sensors for precise measuring results –which is just what they were made for. So, be smart and use the clever combination of appSensor and MultiMeasure Mobile – our free app available for both iOS and Android – to carry out professional measurements.

The appSensor BT22WP is automatically identified by MultiMeasure Mobile.
Simple Bluetooth connection to MultiMeasure Mobile
A value measured by the BT22WP can be read clearly when displayed by the MultiMeasure Mobile app.
Numeric display of measured values
By tapping on the screen you can switch between graphic and numeric display.
Chart representation of measured values
By means of the logging function you can record measurement series and generate reports while still on site.
Versatile thermometer as appSensor controlled via smartphone
By means of the logging function you can record measurement series and generate reports while still on site.
Versatile thermometer as appSensor controlled via smartphone

MultiMeasure Mobile app – smart measuring data acquisition and evaluation of measuring data

With the free MultiMeasure Mobile app the captured measurement data becomes even more transparent. Just like the analysis software MultiMeasure Studio Professional 2.0developed by Trotec for administration, analysis and report generation of measurement data on your PC, the free MultiMeasure Mobile app for Android and iOS devices also allows for professional measurement data management with a multitude of useful functions. The digital thermometer BT22WP and numerous other measuring devices with Bluetooth® interface are automatically identified by the app and can be connected to the mobile terminal device quickly, easily and wirelessly.

The functionality of the MultiMeasure Mobile app is way beyond the simple indication of the captured measurement values. All recorded data can be displayed either numerically or in form of a chart and, by means of the logging function, can also be recorded as a series of measurements for long-term evaluation. Assigning measurement data to different projects (e.g. departments, rooms, buildings, etc.) with the app is a child's play – including text and report templates for professional measurement data reports.

MultiMeasure Mobile – all of the app's advantages at one glance:

  • Automatic identification of the BT22WP and other measuring devices with Bluetooth® interface
  • Quick and intuitive navigation
  • Numerical measured value indication or else in form of a chart / matrix
  • Integrated report function for the documentation directly on site
  • PDA function for the organization of measurement data and documents
  • Customer management already integrated
  • Manifold analysis options directly in the app
  • Storage of measured values linked to photos
  • Matrix measurements, also linked to photos
  • Complete data synchronization with MultiMeasure Professional via cloud

Info video on appSensors and MultiMeasure Mobile

In our video you can get a quick overview of the measurement options of the Trotec appSensors and get first insights into the functionality of the MultiMeasure mobile app. Watch it now!

Watch the video now!

Direct link to MultiMeasure Mobile in the app store:

MultiMeasure Mobile for Android
MultiMeasure Mobile for iOS

BT22WP digital thermometer as appSensor controlled via smartphone

BT22WP – A few practical benefits:

  • Compact digital thermometer for measuring the ambient temperature (measuring range -50 to 150 °C, measurement accuracy ±1 °C) in air ducts and ventilation shafts
  • Min/Max and data hold function
  • Integrated magnetic holder to allow for hands-free working
  • Bluetooth® connectivity for use of the free MultiMeasure Mobile app
BT22WP – dimensions, battery/batteries and magnetic holder
Smartphone-controllable thermometer BT22WP


BT22WP -appSensoren- Thermometer mit Smartphone-Bedienung show in Trotec online shop

Technical data

Technical data
General information
  Article number 3.510.205.009
Air temperature [°C]
  Min. measuring range | Air temperature [°C] -50
  Max. measuring range | Air temperature [°C] 150
  Resolution [°C] 0.1
  Accuracy ±2°C (3.6°F) @ <0°C
±1°C (1.8°F) @ ≥ 0°C
Air temperature [°F]
  Min. measuring range | Air temperature [°F] -58
  Max. measuring range | Air temperature [°F] 302
  Resolution [°F] 0.1
  Accuracy ± | Air temperature [°F] 3.6
Temperature liquids [°C]
  Min. measuring range  | Liquids [°C] -50
  Max. measuring range  | Liquids [°C] 150
  Resolution  | Liquids [°C] 0.1
  Accuracy ±2°C (3.6°F) @ <0°C
±1°C (1.8°F) @ ≤ 0°C
Housing design
  4.0 (BLE)
  Max. transmission range 10 m in open terrain
Power supply
  3 x 1.5 V, AAA
Ambient conditions
  Operation - min. temperature [°C] -20
  Operation - max. temperature [°C] 50
  Storage - min. temperature [°C] -20
  Storage - max. temperature [°C] 60
  Operation - max. relative humidity [% r.F.] 80
  Relative humidity during storage [%] 10 -90% RH
  Length (packaging excluded) [mm] 23
  Width (packaging excluded) [mm] 38
  Height (packaging excluded) [mm] 220
  (packaging excluded) [kg] 0.09
Standard scope of delivery
Standard scope of delivery
  Measuring device
  Wrist strap
  Operating manual
Ascertainable measured values and functions
Internal sensors
  Temperature [°C]
  Temperature [°F]
Functions and features
  Battery status indication
  Minimum value display
  Maximum value display
  Average value display
  Measured value hold function
  Automatic switch-off
  Alarm function
  Representation of measurement data as chart or table
  Data export
  Report generation function

 standard equipment

 optionally available

 not available



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