Led Status; First Steps; Switching On/Off; Switching On - TESTO 905i Instruction Manual

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5 First steps

1 Measuring unit
2 LED
3 Key
4 Battery compartment (at the back)
5 Direction of flow testo 405i / testo 410i (not shown)
(An arrow on the top of the housing displays the direction of
flow in which the measuring instrument has been calibrated and
which achieves the best measurement results. Please note the
direction of flow during usage.)
4.2.

LED status

LED status Meaning
Flashing red Low battery status
• Smart Probe is switched on.
Flashing yellow
• Smart Probe is searching for a BT connection, but is
not connected.
• Smart Probe is switched on.
Flashing green
• Bluetooth is connected.
5 First steps
5.1.

Switching on/off

5.1.1.

Switching on

1. Pull the film out of the battery compartment.
2. Press the button on your Smart Probe.
- The Smart Probe switches on.
8
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