Displaying Temperature Values; Establishing A Bluetooth® Connection - TESTO 552 Instruction Manual

4 Operation

4.5 Displaying temperature values

- Press
1
measurement parameter.

The temperature measurement
parameter switches between TH2O,
Tamb and t.
t is displayed in K for °C, and
in °F for °F.
4.6 Establishing a Bluetooth® connection
You need a tablet or smartphone with the Testo Smart Probes App
already installed on it to be able to establish a Bluetooth connection.
You can get the App for iOS instruments in the App Store or for
Android instruments in the Play Store.
Compatibility:
Requires iOS 8.3 or later / Android 4.3 or later
Requires Bluetooth 4.0
- Press
1

- When the Bluetooth icon is shown on the display, Bluetooth is
switched on.
- Once the APP is opened, the instrument will be connected
automatically if it is within range. The instrument does not have to
be connected to the smartphone / tablet beforehand via settings.
- Press
2

- When the Bluetooth icon is no longer shown on the display,
Bluetooth is switched off.
18
to change the temperature
and simultaneously and hold down for 3 seconds.
and simultaneously and hold down for 3 seconds.