® Establishing a Bluetooth connection ............. 8 6.3.1 ® Establishing a Bluetooth connection to the testo Smart App ....9 Using the product ................10 Controls on the measuring instrument ..........10 7.1.1 Implementing settings ................11 7.1.2 Opening configuration mode ..............12 7.1.3...
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PDF Export ..................29 Perform Firmware update ..............30 Maintaining the product ..............31 Inserting / changing batteries ............... 31 Cleaning the instrument ............... 31 Technical data for testo 925.............. 32 Tips and assistance ................33 11.1 Questions and answers ............... 33 11.2 Accessories and spare parts..............
Only perform maintenance and repair work on this instrument that is described in this documentation. Follow the prescribed steps exactly when doing the work. • Use only original spare parts from Testo. Batteries • Improper use of batteries may cause the batteries to be destroyed, or lead to injury due to current surges, fire or escaping chemicals.
• At the end of its useful life, deliver the product to the separate collection point for electric and electronic devices (observe local regulations) or return the product to Testo for disposal. • WEEE Reg. No. DE 75334352 3 Product-specific information •...
Only open the measuring instrument if this is expressly described in the documentation for the purposes of maintenance or servicing. 4 Intended use The testo 925 is a compact measuring instrument for measuring temperatures. It is intended for indoor use only. The product is designed for the following tasks/areas: •...
Close the battery compartment. When not in use for a long period: Take out the batteries. Symbol explanation Do not allow children under 6 years of age to play with batteries. Do not throw batteries in the trash. Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...
The display turns off. 6.2.3 Switching the display illumination on and The measuring instrument is switched on. Press and hold down (2 sec) the MENU/ENTER key. The display illumination is switched on or off. Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...
6 First steps ® Establishing a Bluetooth connection The instrument can be connected to the testo Smart App via ® Bluetooth connection The measuring instrument is switched on. ® To enable the Bluetooth connection for the first time, press and hold ◄...
If necessary, switch the instrument to be connected off and on again to restart the connection module. When the testo Smart App is connected to the measuring instrument, icon appears on the measuring instrument display. The measuring instrument automatically synchronizes its date and time settings with the testo Smart App.
7 Using the product 7 Using the product Controls on the measuring instrument The instrument is switched on. The testo Smart App is installed on the smartphone and connected ® to the instrument via Bluetooth Settings and controls are implemented either on the instrument or via the app.
Decrease value, select option On/Off (long press) Switches the instrument on or off MODE/END Select or end multi-point or continuous mean calculation. Display illumination (long press) OFF (display illumination not active) or ON (display illumination active) Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...
► Press to choose between metric (“METR”) and imperial (“IMPER”) units of measurement and confirm with MENU/ENTER. The currently set unit flashes. ◄ ► Press to set the required unit and confirm with MENU/ENTER. Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...
MENU/ENTER: NO: Do not carry out reset. YES: Carry out reset. All concealed menus that were hidden via the testo Smart App are displayed again. The instrument returns to measurement view. 7.1.7...
The maximum/minimum values of all channels can be reset to the current reading. ◄ Press several times until Max or Min is shown. ◄ Hold down (approx. 2 s). All maximum and minimum values are reset to the current reading. Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...
(several times). To end measurement and calculate the mean value: Press MODE/END. flash. The number of measured values and the calculated multi-point mean value are displayed. To switch back to the measuring view: Press MODE/END. Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...
MENU/ENTER each time. To end measurement and calculate the mean value: Press MODE/END. flash. The measurement period and the calculated continuous mean value are displayed. To switch back to the measuring view: Press MODE/END. Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...
A testo Bluetooth /IRDA printer (order no. 0554 0621) is connected via Bluetooth and switched on. When first setting up a connection between the testo measuring ® instrument and the testo Bluetooth /IRDA printer, the initialization phase can last up to 30 seconds.
8 Controls via testo Smart App 8 Controls via testo Smart App If the measuring instrument is connected to the testo Smart App, it is primarily operated via the app. The measuring instrument remains in the measurement view and settings menus cannot be opened on the measuring instrument.
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8 Controls via testo Smart App Additional symbols on the user interface of the app (not numbered) One level back Exit view Share measurement data/report Searching Favourite Deleting Further information Display report Multiple selection Main menu can be accessed via the icon at top left.
Select Instrument information. The version number of the app and the ID are displayed. 8.2.3 Displaying the tutorial The tutorial guides you through the first steps in operating the testo Smart App. Click on Select Help and Information. ...
8 Controls via testo Smart App Application menus 8.3.1 Selecting an application menu Click on A selection of menus for various applications is displayed. Select the required application. Your selected application is displayed. 8.3.2 Setting favourites Click on ...
8 Controls via testo Smart App Making measuring instrument settings The measuring instrument is connected to the testo Smart App. Click on The main menu opens. Click on Sensors. Sensors menu opens. Click on the required measuring instrument.
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8 Controls via testo Smart App Click on the blue text under a settings heading to activate or disable settings or to open an input window to enter a specific value or select a unit. For details on the settings options, see the following sub-sections.
8 Controls via testo Smart App 8.4.1 Configuring the measuring instrument menu The testo Smart App can be used to set which settings menus should be available or hidden on the measuring instrument itself. Settings tab in the Sensors menu is open.
8 Controls via testo Smart App Deactivate the checkboxes for the measuring instrument menus that are no longer to be displayed on the measuring instrument itself. The menus belonging to the deactivated entries will no longer be displayed in the measuring instrument menu after the next synchronization.
8 Controls via testo Smart App Click on Average of the measured values. The window for Average of the measured values opens. Enter a value between 2 and 20 measured values. Changes to the measuring instrument settings in the app are transferred directly to the measuring instrument.
8 Controls via testo Smart App Activate Surface increment using the slider. Enter the value for the surface increment and confirm with The changes are transferred to the measuring instrument and synchronization with the app is confirmed on the measuring instrument via “SYNC DONE”.
Create PDF with all readings is only possible up to 30 pages, due to the resulting file size and number of pages. In the testo DataControl software, however, PDF reports can be created for all measurements without any restrictions. ...
8 Controls via testo Smart App Perform Firmware update Ensure that the option for Enable update for connected instruments Instrument Information is always enabled. If a new firmware is available for your measurement instrument, an update notification is shown after connecting the instrument with the testo Smart App.
9 Maintaining the product After the update the measuring instrument is restarting. The firmware can be checked in the instrument menu or via the app. A restart of the testo Smart App is recommended after the instrument update. 9 Maintaining the product...
10 Technical data for testo 925 10 Technical data for testo 925 Feature Value Measurement parameters °C, °F Accuracy ±(0.5 °C + 0.3% of measuring value) Resolution 0.1 °C (-50 to +499.9 °C) 1 °C (other ranges) Measuring range -50 to +1000 °C Operating temperature -20 to +50 °C (measuring instrument)
Probe damage Please contact your dealer or Customer Service. Display: OTA Fail The update process "over Restart the measuring the air" of the measuring instrument and testo Smart instrument could not be App and check the ® completed successfully. Bluetooth connection.
Order no. Temperature probe TC type K For a complete list of all compatible temperature probes, please refer to the product catalogues and brochures ® Bluetooth /IRDA printer 0554 0621 Topsafe protective case 0516 0224 Testo-Direct sales@GlobalTestSupply.com 1.888.610.7664 www. .com...