Technical Maintenance 
and Storage
Maintenance should be carried out no less frequently than twice a year, and 
should consist of the following measures:
Wipe external plastic and metal surfaces with a cotton cloth to remove 
dust and dirt. To avoid damage to the paint coating, do not use 
chemically active substances, solvents, etc.
Clean the electric contacts of the Battery Pack and the device's battery 
slot using a non-greasy organic solvent.
Check the objective and eyepiece lenses and if required, remove dust 
and dirt (preferably using a non-contact method). Cleaning of the 
exterior surfaces of the optics should only be done with products 
specifically designed for this purpose.
Store the device in a carrying case. Remove the Battery Pack for long-
term storage.