Technical Inspection

It is recommended to carry out a technical inspection before each use of the device. Check the following:

• The state of the objective and eyepiece lenses (there should be no cracks, grease spots, dust, deposits).
• The device appearance (there should be no cracks on the housing).
• The state of the rechargeable battery (should be charged) and the electric contacts (should be no signs of salts, oxidation or debris).
• The controls should be in working order.