| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic watthour capable of transmitting electric power data and the like and operating with compact power source even when applying no current. <P>SOLUTION: The electronic watthour, which is equipped with an electric power arithmetic section 2 measuring power consumption of the system to be measured, a controller 3 editing the measured result at the electric power arithmetic section 2 and controlling the memory and display, and a storage device 4 including transmit function by radio waves, such as RF tags, connected with the controller 3 to memorizes electric power data and the like, is capable of transmitting electric power data and the like with any external devices, such as handy terminal, containing the external radio wave sending and receiving function. <P>COPYRIGHT: (C)2007,JPO&INPIT |
