Instructions
![Non-Magnetic Photoelectric Optical Edge](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Notice:
1.To ensure measurement accuracy, please do not touch the probe directly with your hand.
2.If it is not used for a long time, please remove the battery to extend the life of the battery.
3.If it turns out that the battery power is insufficient, please replace the battery of the same model.