Aeon labs heavy duty smart switch is a control and monitor device for heavy duty appliance and utilities. It can fully control your high powered appliances and services wirelessly or with an automatic Schedule. You can save money immediately with both its scheduling and energy monitoring features. You'll receive real-time reports of just how much electricity you are paying for. Youll then be able to using scheduling and automatic controls to reduce the money you spend on the appliances that need up to 40 amps of power.