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Klein Tools MM325, MM420, MM450, & MM720 Digital Multimeters

Klein Tools MM325, MM420, MM450, and MM720 Digital Multimeters feature 10A DC current, AC/DC voltage, resistance, continuity, and diode testing measure functions. The MM420, MM450, and MM720 auto-ranging units include additional measuring features, such as true root mean square (TRMS), AC current, frequency, duty cycle, capacitance, and temperature. The MM720 multimeter also offers a low-impedance mode and ruggedized construction. Klein Tools MM325, MM420, MM450, and MM720 all provide CAT III 600V safety ratings and drop protection up to 6.6' (2m).

Features

  • MM420, MM450, and MM720
    • Auto-ranging
    • TRMS
    • Frequency
    • Duty cycle
    • Capacitance
    • Temperature
  • MM720 only
    • Low impedance (LoZ) mode
  • All models
    • AC/DC voltage
    • Resistance
    • Continuity
    • Diode testing

Specifications

  • 6.6' (2m) drop protection
  • 600VAC/DC or 1000VAC/DC voltage
  • 10A DC current
  • MM420, MM450, and MM720
    • 10A AC current
    • -40°C to +1000°C temperature range

Kit Contents

  • MM325
    • Instruction manual
    • Test leads with CAT III/CAT IV safety caps
    • 2 x AAA batteries
  • MM420
    • Instruction manual
    • Test leads with CAT III/CAT IV safety caps
    • Thermocouple
    • 2 x AAA batteries
  • MM450 and MM720
    • Instruction manual
    • Test leads with CAT III/CAT IV safety caps
    • Thermocouple
    • 2 x AAA batteries
    • Carrying case

Videos

Feature Comparison

Infographic - Klein Tools MM325, MM420, MM450, & MM720 Digital Multimeters
Published: 2022-07-22 | Updated: 2024-05-23