Steinberg Systems SBS-RS-40 Manual De Instrucciones página 41

g) Do not use sharp and/or metal objects (e.g. a wire brush or metal spatula) for
cleaning, as these may damage the surface of the material from which the unit
is made.
h) Do not clean the unit with acidic substances, medical products, diluent, fuel,
oil or other chemicals as this may cause damage to the unit.
i) If the sensor is positioned too far from the main station (more than 30 m) the
display will show the last received measurement instead of the current values.
In this case, remove the batteries from the main station and the sensors,
position them closer and restart.
j) After removing the batteries (switching off) the sensors, the main station will
display the last received measurement for one hour and after one hour the
display will show "-".
3.4.1. Instructions for the safe disposal of batteries.
The units are equipped with AAA 1.5V batteries.
Remove used batteries from the unit in the same way you put them in.
Return the batteries to a unit responsible for their disposal.
3.4.2. Disposal of used units.
At the end of its useful life, this product should not be disposed of with normal
household waste but should be taken to a collection point for the recycling of
electrical and electronic equipment. This is indicated by the symbol on the
product, operating instructions or packaging. The materials used in this unit are
recyclable according to their marking. You will be making an important
contribution to protecting our environment by reusing, recycling or otherwise
disposing of used units.
Your local administration will provide you with information about the
appropriate disposal point for used units.