1.The thickness gauge is a precision measuring tool, and it should be prevented from being hit or dropped during use to avoid loss of accuracy.<br> 2.It should be clean to prevent water and other liquid substances from penetrating into the thickness gauge, so as not to affect the normal use.<br> 3.Do voltage to any part of the thickness gauge, and do not use a pen to characters, so as not to damage the electronic circuit.<br> 4.When not in use for a long time, the battery should be taken out.<br> Name: MINI Digital Thickness Gauge<br> Specification:0-20mm/1inch<br> Accuracy:0.01mm/0.0005inch<br> Storage And Transportation Temperature:-20-70<br> Relative Humidity:less than equal80%<br> Style:Pointed Head Style<br> Colour:Gray<br> Material:plastic<br> Package Contents:<br> 1 * Thickness Gauge<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.