6
Maintenance
32
4
- Insert new battery and slide upwards
until it clicks into place.
5
- Close the battery compartment.
6.3
Cleaning the instrument
Cleaning the instrument housing
- The interface terminal is closed.
- The battery compartment is closed.
1
- Rub down the surface of the instrument with a damp cloth. Use mild
household cleaning agents or soapy water for this.
Cleaning the lens and display
1
- If the lens is dirty, clean it with a cotton bud.
2
- If the display is dirty, clean it with a cleaning cloth (e.g. microfibre
cloth).
6.4
Firmware update
The current firmware version is available at www.testo.com.
