Maintenance should be carried out at least twice a year and include the following steps:
Wipe the exterior metal and plastic 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 electrical contacts of the rechargeable battery on the device using a non-greasy organic solvent.
Check lenses of objective, eyepiece and rangefinder. If necessary, remove the particles of dust and sand (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.