1. When selecting the installation site, it is necessary to pay attention to whether the temperature is unstable in the site. If the environment has a sharp temperature change or the ambient temperature is too low or too high, it is not recommended to install, otherwise the life of the device will be Use has an impact.

2. Whether the installation site can put the test box and a certain distance from the wall or adjacent equipment. If the requirements are not met, then the heat dissipation of the test box and the subsequent maintenance work will be difficult.

3. Whether there is flammable, explosive, corrosive and other substances around the installation site of the test box, whether there is high temperature heat source or excessive dust around. If you have the above conditions, do not install it, or it will threaten the safety of your personal use.

Note: The constant temperature and humidity test box is connected to the electrician to find a professional electrician according to the manufacturer's requirements. Otherwise, there may be cases where it cannot be turned on. In the process of using, we must remember the maintenance or the equipment will be prone to failure with the extension of the use time.