To use this MSM - 2 add - on panel, first make sure you have the MS - 200 Master Station (which is not included with this panel). Connect the panel to the master station following the standard connection procedures. When using, keep it in a dry and clean environment. Avoid exposing it to extreme temperatures or moisture. For maintenance, you can gently wipe the surface with a soft, dry cloth regularly. If there are any issues, don't try to open it yourself, and contact customer support instead.