Extech MM570A
MultiMaster High-Accuracy Multimeter
True RMS, 50,000/500,000 Count + Temperature

  • Full range multimeter functions with 0.02% basic DCV accuracy and up to 100kHz True RMS ACV bandwidth
  • 50,000 count (500,000 for DCV and Hz) backlit LCD display with bargraph
  • Special True RMS combination AC+DC function for measurements of rectified AC (non-symmetrical) voltage & current waveforms
  • Filtered frequency function with adjustable trigger levels for variable speed motor drives and high voltage applications
  • AC/DC current to 10A with 0.01µA resolution
  • 4 to 20mA, displayed as 0-100% for process current measurements
  • Capacitance, Frequency, Resistance, Continuity, Duty cycle and Diode tests with 100V input protection on all functions
  • Dual input Temperature function -58 to 1832°F (-50 to 1000°C ) with T1, T2 and T1-T2 display in °F or °C
  • High resolution to 1µV, 0.0001Hz, 0.01Ohm, 0.01µA and 0.1°
  • Max/Min recording with autoranging, Auto Power off, Relative & Hold, Peak function captures transient pulses
  • Optional Windows® compatible PC communication software and optically isolated cable
  • Complete with test leads, Type K thermocouple probe, protective holster with stand and 9V battery
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Extech MM570A Shown
Product Information
Datasheet 238 KB PDF
Manual 1.1 MB PDF
Selection Guide HTML
Click here for Information Regarding PDF'sPDF Help
Specification Extech MM570A
Function Range Max. Resolution Basic Accuracy
DC Voltage 500mV, 5V, 50V, 500V, 1000V 0.001mV ±(0.02% + 2d)
AC Voltage 500mV, 5V, 50V, 500V, 1000V 0.01mV ±(0.4% + 40d)
DC Current 500μA, 5000μA, 50mA, 500mA, 5A, 10A 0.01μA ±(0.1% + 20d)
AC Current 500μA, 5000μA, 50mA, 500mA, 5A, 10A 0.01μA ±(0.7% + 50d)
Resistance (Ω) 500, 5k, 50k, 500k, 5M, 50M 0.01Ω ±(0.07% + 2d)
Capacitance 50nF to 9999μF 0.01nF ±(0.8% + 3d)
Line Frequency 5Hz to 200kHz 0.0001Hz ±(0.002% + 4d)
Logic Frequency 5Hz to 2MHz 0.0001Hz ±(0.002% + 4d)
Temperature -58 to 1832°F (-50 to 1000°C ) 0.1° ±(0.3% +1°C/2°F)
Duty Cycle 0.1% to 99.99% 0.01% ±(3d/kHz + 2d)
Dimensions/ Wt 7.32 x 3.42 x 1.39" (186 x 87x 35.5mm) / 0.75lb (340g)
Ordering Information
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Included Accessories
  • 1 Holster
  • 1 Type K bead wire probe
  • 1 Set test leads
  • 1 9 V Battery
  • 1 Manual
Optional Accessories
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*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.