Warning items 1. the instruments and software, in processing of data, due to the limitations of the expressed data or the number, According to the relation of rounding processing algorithm, the conclusion of calculation may be deviations with the conclusion drawn by manual calculation.In extreme cases, this deviation is related to the conclusion that the test results are qualified. When there is a little of difference between the calculation conclusion and the standard criterion value, please do carry out manual checking and take the result of manual calculation as final. 2, the instrument is not waterproof, please do not contact the instrument or immersed in water or other liquids.Please don't let water or other liquid flow into the instrument and avoid rain. If the shell is stained with water or other Liquid, please dry it immediately. If water or other liquid flows into this instrument, please turn it off immediately,shut down the power, take down the electronic storehouse, turn it over and use the hot air blower to dry it. If the instrument damaged, please contact your dealer or contact directly with customer service department of the Laoling Elasticity Tester Factory. 3, if smoke and peculiar smell emit from any parts