Code
Cause
Solution
261
Outside of the
measurement range
Observe the
measuring range.
500
Hardware error
Turn the device off
and then on again.
If after several
attempts the error
message still
appears, contact
your retailer.
27. Care and cleaning
Never use aggressive detergents, rubbing alcohol
or other chemical solutions, as these may damage
the casing or cause the product to malfunction.
Do not immerse the product in water or other
liquids.
• The product is maintenance-free. Only clean the exterior
with a soft, dry cloth or a brush.
In case of stronger soiling, you can use a damp cloth.
• Use a small brush or a cotton bud to clean the measuring
sensor.
• Store and transport the measuring device only in the
included pouch.
29
