MCM Electronics

4,000 Count 3-3/4 Digit Multimeter DMM w/RS-232MCM Part #: 72-7735  |  Tenma Part #: 72-7735

4,000 Count 3-3/4 Digit Multimeter DMM w/RS-232 4.8 stars from 2 reviews.
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Full function multimeter offers a variety of ranges for every service application, plus provides an optically isolated RS-232 interface. Rugged overmolded housing stands up to the daily rigors of field service use, and large LCD display is easily read from several feet away.

Measures AC/DC voltage, AC/DC current, resistance, capacitance, frequency and duty cycle. 3-3/4 digit, 3999 count display features 3/4" digits and numerous on–screen icons, for easy at–a–glance reading. Includes standard 9V battery and owners manual.

Product Description

  • Switchable auto/manual range
  • Diode check
  • Continuity buzzer
  • Data hold
  • Relative mold
  • Low battery display
  • Standard test leads included
  • Short test leads also included for accurate capacitance checking
  • 4' opto–coupled RS-232 cable with female DB9 connector
  • Datalogging software
  • Meets 600V CATIII, and 1000V CATII standards


  • DC Voltage: 400mV, 4V, 40V, 400V, 1000V
  • AC Voltage: 4V, 40V, 400V, 750V
  • DC Current: 400µA, 4000µA, 40mA, 400mA, 4A, 10A
  • AC Current: 400µA, 4000µA, 40mA, 400mA, 4A, 10A
  • Resistance : 400Ω, 4KΩ, 40KΩ, 400KΩ, 4MΩ, 40MΩ
  • Capacitance: 40nF, 400nF, 4µF, 40µF, 100µF
  • Frequency: 10Hz~10MHz
  • Duty Cycle: 0.1%~99.9%
  • Input Impedance: 10MΩ
  • Dimensions: 6-3/4" (H) x 3-3/8" (W) x 1-1/2" (D)

  • DC Voltage: ±(0.8%+1)
  • AC Voltage: ±(1% +5)
  • DC Current: ±(1%+2)
  • AC Current: ±(1.5%+5)
  • Resistance: ±(1%+2)
  • Capacitance: ±(3%+5)
  • Frequency: ±(0.1%+3)

    Device software can be downloaded here: 72-7735 Software (.zip, 2.1Mb)

  • Product Reviews

    • "tv" by aaaatv3037706321 on 12/26/2011
      Overall: 5 out of 5

      have a few of these items, this time though the leads were different on the tips.otherwise the meter is excellent.

    • "Good small multimeter that measures capacitance! RS232 Interface Silly" by jonkoon on 7/9/2009
      Overall: 4.5 out of 5

      This is a great, small, affordable multimeter that measures voltage, current, resistance, and capacitance well (within the ranges specified). The only complaint that we have is the RS232 serial interface. The serial protocol is not well documented although we did discover the protocol via internet searches. The protocol does not return simple data as one would expect. It only transmits 14 bytes where certain bits within those bytes indicate the segments on the display that are currently lit up. No measurement values are returned, just screen display data. We did use this data to create lookup tables to measure data, but it just seems silly!

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    Package Specifications & Dimensions
    Weight:1.36 lbs.
    Warranty:365 days
    Need to Return?
    Length:8 in.
    Width:6 in.
    Height:2.25 in.
    Shipping Information
    Extra Shipping Charge:No
    Drop Ship:No
    Catalog Pages

    MCM Cat 57, Page 1221

    MCM Cat 56, Page 1062

    PDF Reference

    Requires Adobe Acrobat Reader.

    Mfr. Info

    Tenma Logo
    Mfr. Name:Tenma
    Mfr. Part Number:72-7735
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