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    AC Analog Frequency Meter

    Frequency meter with electroplated screw and printing scale for sale. The overload ratio of this small analog frequency meter can be reach 100%. Clear scale markings allow for more accurate readings, enabling precise measurement and reducing potential reading errors.
    SKU: ATO-AFM-100
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    An analog frequency meter, also known as an analog frequency counter or simply a frequency meter, is a type of measurement instrument used to determine the frequency of an alternating current (AC) signal. Frequency refers to the number of cycles or oscillations that occur in a unit of time and is usually measured in Hertz (Hz).


    • Needle and Scale Display. The most prominent feature of an analog frequency meter is its needle or pointer that moves across a calibrated scale. The position of the needle indicates the voltage being measured.
    • Analog Technology. Analog frequency meters use analog components such as moving coils, magnets, and springs to create the mechanism that translates voltage into needle movement.
    • Range Selection. Analog frequency meters often come with multiple voltage measurement ranges. Users can select the appropriate range based on the expected hertz to achieve better accuracy and resolution.


    • Model: 42L6
    • Measuring Range: 100-1000 Hz (other range, contact us)
    • Accuracy Class: 2.5
    • Display Type: analog only
    • Overload Ratio: 100%
    • Damping Time: ≤4s
    • Operating Temperature: 0-55 ℃
    • Mode of Installation: mounted perpendicular to horiaaontal
    • Weight: 1 kg

    Wiring Diagram:

    AC analog frequency meter wiring diagram


    AC analog frequency meter dimension

    Tips: How Does Analog Frequency Meter Work?

    An analog frequency meter, often known as an analog frequency counter, measures the frequency of an input signal by converting it into a proportional mechanical motion. It utilizes a resonant circuit or oscillator that generates a signal whose frequency matches the input. This generated signal is then used to drive a mechanical movement, typically a pointer on a circular scale. As the input frequency changes, the mechanical system resonates, causing the pointer to move along the scale. The position of the pointer indicates the frequency of the input signal. The scale is calibrated such that the pointer's position corresponds directly to the input frequency. Analog frequency meters are simple and intuitive but are less precise than digital counterparts. They work well for visualizing frequency trends and can be found in various applications like audio equipment and power systems.

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