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Handheld digital multimeter with LCD display and test leads

JacobsParts Inc.

JacobsParts Inc. DMUL-01 7-Function Digital Multimeter Measurement Tool

SKU CH-6YMC-SS6GV MPN DMUL-01

Measures AC/DC voltage, DC current, resistance, and checks diodes and transistors with fused ranges

  • AC Voltage200-750V
  • DC Voltage200mV-1000V
  • Item Count1 Pack
  • TypeAmmeter, Multimeter, Ohmmeter, Voltmeter
  • FeaturesResistance, AC Current, DC Voltage, Transistor Test, DC Curr
  • Voltage Range AC200-750V
  • Measures DC voltage from 200mV up to 1000V
  • Covers AC voltage range from 200V to 750V
  • Handles DC current up to 10A for circuit checks
  • Tests resistance up to 20MΩ and checks diodes
  • Includes transistor hFE test and audible continuity beep

7-Function Digital Multimeter

The JacobsParts DMUL-01 is a handheld digital multimeter offering seven measurement functions for electrical troubleshooting. It suits electricians, technicians, and hobbyists who need to verify voltage, current, and resistance in circuits. The tool combines an ammeter, ohmmeter, and voltmeter in a single portable unit. Buyers requiring advanced logging or wireless connectivity will not find those features here.

Thermals, Noise and Power Draw

The meter operates on an internal battery and draws negligible power during normal measurements, producing no audible fan noise. Its operating temperature range is stated as -40°C to 1000°C, indicating tolerance for extreme ambient conditions. All measurement ranges are protected by resettable fuses that limit damage from overloads. The device generates no significant heat during typical bench or field use.

Build Quality and Connectors

The DT-830D style housing provides a compact handheld form factor with a clear digital display for reading values. Standard test lead jacks accept common banana plugs for voltage, current, and resistance connections. Dedicated terminals support transistor hFE gain testing and an audible continuity beeper aids wiring checks. The fused input design protects the instrument during accidental high-energy transients.

Highlights

  • Measures DC voltage from 200mV up to 1000V
  • Covers AC voltage range from 200V to 750V
  • Handles DC current up to 10A for circuit checks
  • Tests resistance up to 20MΩ and checks diodes
  • Includes transistor hFE test and audible continuity beep

Specifications

BrandJacobsParts
ModelDMUL-01
AC Voltage200-750V
DC Voltage200mV-1000V
Item Count1 Pack
TypeAmmeter, Multimeter, Ohmmeter, Voltmeter
FeaturesResistance, AC Current, DC Voltage, Transistor Test, DC Current, AC Voltage, Diode Test
Voltage Range AC200-750V
Voltage Range DC200mV-1000V

Questions about this item

How do I install the battery in the DMUL-01, and which step do people miss?

Open the rear compartment, insert a 9 V cell matching the polarity markings, then snap the cover fully shut — the step most often missed is pressing the cover until both latches click, otherwise the meter powers intermittently.

What maintenance or replacement will the DMUL-01 need later?

Replace the 9 V battery when the low-battery symbol appears and swap the internal fuse if the 10 A range stops reading; both are user-replaceable.

What limit shows up first on the DMUL-01 during sustained high-current use?

The 10 A fused range will trip its resettable fuse first if current exceeds 10 A for more than a few seconds, cutting power to the input jacks.

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