Radio teleswitch
（重定向自Teleswitch）
![Economy 7 Meter and radio teleswitch, right](/Images/godic/202502/15/Economy_7_Meter_and_Teleswitcher2804.JPG")
A radio teleswitch is a device used in the United Kingdom to allow electricity suppliers to switch large numbers of electricity meters between different tariffs, by broadcasting an embedded signal in broadcast radio signals. Radio teleswitches are also used to switch on/off consumer appliances to make use of cheaper baseload tariffs, such as economy 7.