Ventilation and indoor climate.
Measure indoor climate easily.
With testo 400, testo 440 dP and a wide range of sensors, you can measure faster, document more efficiently and maintain full control over the indoor environment - fully compliant with EN12599.

testo 400
It couldn't be simpler.
testo 400 is a universal indoor climate instrument that allows you to measure air flows in ducts and at diffusers with the greatest efficiency and precision. Developedfor ventilation professionals -the more demanding the measurement, the more support you get from the help functions.Manage all relevant customer data, including measurement points, directly in the instrument.
- Interactive menus for guided measurements
- Analysis software to create professional reports
- Flexible and expandable with a wide range of compatible transducers
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with a request body that specifies how to map the columns of your import file to the associated CRM properties in HubSpot.... In the request JSON, define the import file details, including mapping the spreadsheet's columns to HubSpot data. Your request JSON should include the following fields:... entry for each column.
One instrument for all measurements.
With testo 400, the possibilities are many. In addition to air flow, you can also measure other climate parameters, perform high-accuracy temperature measurement and more.
testo 440 dP
Versatility that delivers.
testo 440 dP: for reliable air flow measurement at inlets and in ducts.Enter the dimensions and shape of the duct and the air flow is quickly calculated and displayed in l/s.
- Clearly structured measurement menus for intuitive use
- Wide range of sensors for many applications
- Large graphic display with parallel display of three measurement values
- Integrated differential pressure sensor
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with a request body that specifies how to map the columns of your import file to the associated CRM properties in HubSpot.... In the request JSON, define the import file details, including mapping the spreadsheet's columns to HubSpot data. Your request JSON should include the following fields:... entry for each column.
For all key climate parameters.
The testo 440 dP multi-instrument is compatible with sensors for all important climate parameters and enables accurate assessments of indoor climate quality.
Professional measurement kits for all climate tasks
High performance in a compact format
Air flow
testo 417 - measuring set with wing wheel anemometer and two probes
Simple, fast and precise measurement of air flow, air velocity and temperature at supply and exhaust air outlets.
Efficient adjustment of ventilation systems with the testo Smart app.
Temperature
testo 922 - differential temperature meter type K
Simple differential temperature measurement with dual thermocouple sensors type K
(2 x TC type K sensors class 1 included).
Quick configuration, history in diagrams and easy documentation in the testo Smart app.
Temperature
testo 925 - temperature meter type K
Reliable temperature measurement for many applications (1 TE type K sensor included).
Use your mobile as a second screen and manage settings and measurement data with the testo Smart app.
Pressure
testo 512-1 - differential pressure gauge - 200 hPa
Compact and fast differential pressure gauge for gas flow and gas pressure. Up to 200 hPa.
Document measurement data easily in the testo Smart app.
CO2
testo 535 - CO2 meter
Simple, fast and accurate determination of carbon dioxide levels - to ensure a comfortable and healthy indoor climate.
Connect to the testo Smart app to send reports directly from the measurement site.
testo Smart App
One app. Lots of instruments. Total control.
Say goodbye to paperwork and scattered measurements. With the testo Smart App, all your measurements for refrigeration systems and heat pumps are stored in one place - to increase productivity and minimize downtime.
- Flexible - works with all Testo instruments with Bluetooth®
- Intuitive - guided measurement processes
- Efficient - quick and easy documentation
- Always up to date - regular updates included
- Smart and free - free to download and use
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with a request body that specifies how to map the columns of your import file to the associated CRM properties in HubSpot.... In the request JSON, define the import file details, including mapping the spreadsheet's columns to HubSpot data. Your request JSON should include the following fields:... entry for each column.
We help you ensure efficient and accurate measurements.
Maria Almestål
Lab manager calibration
Maria Almestål
Lab manager calibration