2 Description of the instrument
7
5 Type K thermocouple connection 6 Back
7 Navigation 8 Instrument ON/OFF
9 Micro USB port for data
transfers or connection to
external power supply
10 Connections for differential
pressure measurements
(+ / - labelling on rear of
instrument, only testo 440 dP)
2.3 Display overview
Element Element
1 Zero pressure sensor 2 Probe identification
3 Measuring values 4 Measuring Application
5 Status bar
Symbol Meaning
Start measurement
Stop measurement
Carry out multi-point measurement
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