![sewer repair](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
Warm Tips to Better Use Borescope G51-B:
1. Before using this device, please plug in the lens cable and TF card first, and then turn it on.
2. Please plug/unplug the cable by operating the switch lock button.
3. The working temperature of industrial endoscope is 14-122 °F, and of the cameras probe is 5-167 °F (DO NOT use it in extreme temperature)
4. The best imaging focal length of the front camera is 2-10CM, and of side camera is 2-5CM(Please use within a reasonable focal to achieve the best imaging effect.
5.Temperature control design: When the temperature of the endoscope reaches 75°, the endoscope will automatically stop working, and you can continue to use the endoscope after it cools down.