Abstract: A measuring rod for an electric meter and an electric meter assembly using the same are disclosed, wherein the device to be detected disposed around the front end of at least one of the test probes allows the electric meter to determine the type of currently inserted test probes and whether the test probes are suitable for use under a current operation mode of the electric meter in a situation when the device to be detected is inserted into the electric meter; and the measuring socket corresponding to the device to be detected is disposed with a determination mechanism for allowing the electric meter to determine whether the abovementioned test probes or test probes of different types are suitable for use under a current operation mode of the electric meter.

Abstract: A separation-type avometer includes a manipulation device and a measurement main body. The manipulation device includes a selection module, a first wireless module, and a window module. The measurement main body includes a measurement module, a second wireless module, and an automatic determining and switching module. The first wireless module transmits a measurement mode selected through the selection module to the second wireless module of the measurement main body. The automatic determining and switching module switches the measurement mode of the measurement module according to the selected measurement mode. After the measurement is completed, the second wireless module transmits signal data measured by the measurement main body to the first wireless module of the manipulation device, so as to use the window module to display the signal data measured by the measurement main body.

Abstract: An auto-measuring universal meter is disclosed. The auto-measuring universal meter includes a main unit having a display and a single button. A pair of test probes is electrically connected to the main unit in a removable manner to detect a first input signal; an inductive clamp is formed on and electrically connected to the main unit for gripping a current-carrying conductor to detect a second input signal indicative of an alternating/direct current flowing through the current-carrying conductor. The main unit is designed so as to take measurement of the input signals in a self-judging mode based on the presence of and/or the differences between the input signals so that the alternating/direct current can also be measured.

Abstract: A hooking-type fully automatic electric meter with a function of fully automatic detecting and choosing a measuring mode among the electric current, voltage and resistance measuring modes. A user only needs to turn on the electric power of the electric meter without performing any other procedures; he can get an accurate reading of the volume of electricity on the display screen. The meter is different from the manually selected clamping type meters with different functional positions for measuring the values of electric current, voltage and resistance. With the meter, damage to the main body of the electric meter in operating electric measuring and to the safety of the user himself can be avoided. This can significantly raise the industrial safety in measuring large volume of electric current, and can save actions and time for operating the electric meter, and convenience and efficiency in operating can be increased.