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GDM-451 - Instek 4 1/2 Digits Hand-Held DMM

Instek   4 1/2 Digits Hand-Held DMM

GW Instek

Category : Multimeters

$88 (USD) Add to Cart



The GDM-300/400 Series Hand Held DMM are a compact, high precision, battery operated multimeter series designed to meet most of the daily needs for design engineers as well as service engineers. The GDM-300/400 series design is driven by mobile-oriented features, such as automatic power down to preserve battery life, a large backlight display for crisp viewing, a rotary selector switch and clear-cut push buttons to ease operation. The basic functions match the depth of bench-top multimeters: fuse-protected current input, true RMS for accurate AC measurements, Auto ranging, Duty cycle, and Relative mode. These compact, reliable, and economical devices are ideal for any engineer.

  • 4 1/2 Digits 19999 counts
  • Manual Ranging
  • Continuity Beeper/Diode Test
  • Data Hold
  • Temperature Measurement
  • Capacitance, Frequency Measurement

DC Voltage

Range 200mV, 2V, 20V, 200V, 1000V
Best Accuracy ±(0.05%rdg + 3 digits)
Input Impedance 10 MΩ

AC Voltage

Range 2V, 20V, 200V, 750V
Best Accuracy ±(0.5%rdg + 10 digits)
Input Impedance 10 MΩ

DC Current

Range 2mA, 20mA, 200mA, 20A
Best Accuracy ±(0.5%rdg + 5 digits)

AC Current

Range 20mA, 200mA, 20A
Best Accuracy ±(0.8%rdg + 10 digits)


Range 200Ω ~ 20MΩ 7 ranges
Best Accuracy ±(0.3%rdg + 1 digit)


Range 2nF, 20nF, 2μF, 20μF
Best Accuracy ±(3.0%rdg + 40 digits)


Range 1Hz ~ 20kHz
Best Accuracy ±(1.5%rdg + 5 digits)

Diode Test

Open Circuit Voltage 2.8V (Approx.)

Continuity Beeper

Buzzer sounds if conductance less than 70Ω


Range -40ºC ~ 1000ºC
Best Accuracy ±(1.0%rdg + 30 digits)

Special Function

Display Backlight

LCD Display

4 1/2 digits

Power Source

Single 9V Battery (6F22)

Dimensions & Weight

80(W) x 165(H) x 38.3(D) mm, Approx. 275g

Do you have a Instek 4 1/2 Digits Hand-Held DMM that needs to be calibrated?

We offer standard traceable calibration and ISO 17025 accredited calibration services.

Get your Instek 4 1/2 Digits Hand-Held DMM calibrated today! Click Here!