The control unit is the operating and display unit of the testo 350. It can be removed and equipped as standard with a Li-ion rechareable battery. All settings are carried out using the cursor button. The presentation of the measurement values takes place via the colour graphic display. Thanks to the internal memory, measurement data can be transferred from the analyzer box to the control unit. If required by the measurement, several analyzer boxes can conveniently be operated and controlled using one control unit

• Operation of the analyzer box and transfer of the measurement data even when the flue gas pipe and the adjustment site are separated, especiall helpful for industrial burners, for example.
• Measurement data can be transferred from the analyzer box to the control unit. This means the analyzer box can remain at the measurement site for further measurements, and the control unit taken away in order to process the measurement data.
• In order to protect the display in measurements over a longer period or during transport to different measurement sites in a system, the control unit can be attached to the analyzer box face-down.

Operating temperature                           -5 … +45 °C

Storage temperature                               -20 … +50 °C

Battery life                                               58 h (without wireless connection)

Battery type                                             Li-Ionen

Warranty                                                  2 years

Dimensions                                              88 x 38 x 220 mm

Weight                                                     440 g

Memory                                                   2 MB (250,000 measurement values)

Protection class                                       IP 40