Testo 417 Vane Anemometer 0560 4170 Data Sheet

3. Production description

22

Important displays

Battery capacity (bottom right in display): 

· 4 segments in the battery symbol are lit: Instrument battery is fully 

charged  

· No segments in the battery symbol are lit: Battery is almost spent

3.2 Voltage supply

Voltage is supplied by means of a 9V monobloc battery
(included in delivery) or rechargeable battery. It is not
possible to run the instrument from the mains supply or
charge a rechargeable battery in the instrument.