Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Changing Display From Celcius to Fahrenheit

If the battery has been discharged or disconnected, the temperature mode will reset to centigrade degrees. This is a normal condition and you can adjust the temperature mode from centigrade to fahrenheit as follows:

Press the TEMP down button 3 seconds or more with the AMB button held down. The display shows that the unit of temperature is adjusted to centigrade or fahrenheit (°C -°F or °F - °C).