TESTO 440, Instruction Manual

Page: 29 / 54

3 Operation
27


is displayed.


is shown top left on the display, as soon as the probe and testo
440 are connected to each other.
A connection to compatible Bluetooth
®
probes is automatically
searched for and established. Only one probe can be connected to the
testo 440 by Bluetooth
®
.
Please observe the relevant instructions for the probe when
commissioning it.
2 Press the button on the probe handle.


The LED on the handle flashes yellow. The LED flashes green while
the connection is being established.
3
Press the button on the probe handle a minimum of 3 seconds to
switch the probe off.
LED status
LED status Description
Flashing red Low battery status
Flashing yellow Probe is switched on and searching
for the Bluetooth
®
connection.
Flashing green The probe is switched on and
connected via Bluetooth
®
to the testo
440.
3.5.3 Basic View
In the Basic View [Basic View] , both current and minimum and maximum
measuring values can be read and saved. All compatible probes can be used.
For a list of all compatible probes see Section 2.6.
The maximum of following probes can be connected at the same time:

1x TC

1x Bluetooth
®
probe

1x cable probe