The general business items are: technology development and sales of electronic thermostats, electronic thermometers, temperature controllers, small household appliance control panels, electronic and electrical digital products: development and sales of computer software technology and other domestic trade. (Except for projects that require approval before registration according to laws, administrative regulations, and decisions of the State Council, projects restricted by laws and administrative regulations must obtain a license before they can be operated). The licensed business items are: the production of electronic thermostats, electronic thermometers, temperature controllers, and control panels for small household appliances.