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CAT III 500V Autoranging Pocket Size Digital Multimeter M320

This Pocket Size Digital Multimeter is designed to measure AC and DC voltages, DC current, resistance, diode and to perform audible continuity checks with accuracy. Small and lightweight, with a carrying case and test leads wound on its body, this instrument will provide you years of satisfactory service.
This Pocket Size Digital Multimeter has been designed according to IEC 1010 concerning electronic measuring instruments with an overvoltage category (CATⅡ) and pollution 2.
Measurement category II is for the measurements performed on circuits directly connected to the low voltage installation.

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    Product Features:


    • Hold Key
      Data Hold mode makes the meter stop updating the display. Enabling Data Hold function in auto range mode makes the meter switch to Manual ranging mode, but the full-scale range remains the same. Data Hold function can be cancelled by changing the measurement mode, pressing RANGE key, or push HOLD key again.
    • To enter and exit the Data Hold mode
      1. Press HOLD key (short press). Fixes the display on the current value, DH is displayed.
      2. A second short press returns the meter to normal mode.
    • Select Key
      1. Switches between dc and ac voltage or current.
      2. Disables automatic power-off feature.
    • Battery Saver
      The Meter enters the “sleep mode” and blanks the display if the Meter is on but not used for 30 minutes. Press the HOLD key or rotate the rotary switch to wake the meter up. To disable the Sleep mode, hold down the SELECT function key while turning the meter on.
    • Beeper indication
      When press the function key and if it is valid, a beep will be emitted. The buzzer will sound five times one minute before auto power off. And a long sound to show the auto power off. In the continuity measuring status, if the resistance is smaller than 50Ω,the buzzer will sound.
    • Data Hold;
    • Diode Test;
    • Continuity Buzzer;
    • Auto Power Off.

    Product Parameters:

    M300 M320
    Range Manual Auto
    DC Voltage 2V±0.5%,20/200/500V±0.8% 4V/40V/400V/500V ± (0.5%+3)
    AC Voltage 200/50V±1.2% 4V/40V/400V/500V ± (1.0%+3)
    DC Current 200mA±1.5% 40mA/400mA ± (1.5%+3)
    Resistance 2K/20K/200K/2MΩ±1.0% 400Ω/4KΩ/40KΩ/400KΩ/4MΩ  ± 0.5%, 40MΩ ± 1.5%

    Application and After-Sales Service:

    With Functions of Voltage measurement, Current measurement, Capacitance measurement, Resistance measurement, Diode test, Audible Continuity Test, this digital multimeter is ideal for use in the fields, workshop, school, hobby and home applications.


    Battery 1.5V (SR44) 2
    Carrying Case 1
    Operating manual 1


    Before opening the case, always disconnect test leads from all energized circuits.
    For continue protection against fire; replace fuse only with the specified voltage and current ratings:
    F 200mA/250V(Quick Acting)
    Never use the meter unless the back cover is in place and fastened completely.
    Do not use abrasives or solvents on the meter. To clean it using a damp cloth and mild detergent only.

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