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Red handheld digital multimeter with LCD backlit display and test leads in carrying case

TENMARS ELECTRONICS

TENMARS ELECTRONICS TM-88 Digital Multimeter electrician tool

SKU CH-3S81-QXSMB MPN TM-88

Measures AC and DC voltage to 1000 V, current to 10 A, resistance, capacitance, frequency and temperature with true-RMS accuracy, CAT IV 600 V safety and a backlit 3999-count display

  • TypeTest Equipment
  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • CAT IV 600V safety rating for high-voltage work
  • True RMS measurement gives accurate AC readings
  • Backlit 3999-count LCD with analog bargraph
  • Measures voltage, current, resistance, capacitance, frequency, temperature
  • Auto power off after 15 minutes saves battery

Digital multimeter for electrical testing

The TENMARS TM-88 is a True RMS digital multimeter built for electricians and technicians who need reliable measurements on live circuits. It carries a CAT IV 600V safety rating and a CAT III 1000V rating for industrial environments. The LCD backlit display shows up to 3999 counts alongside an analog bargraph for trend observation. Auto power off activates after 15 minutes to conserve battery life.

Suits field work with safety-rated leads

This meter fits professionals performing voltage, current, resistance, capacitance, frequency, duty cycle, diode and temperature checks up to 800 °C. The included carrying case and test leads support mobile use. Buyers who need built-in data logging, wireless connectivity or a higher count display should look at something else. The single-pack format also means teams needing multiple units must order separately.

CAT IV 600V overvoltage category decides fit

The overvoltage category is the specification that determines whether this multimeter matches the installation you are testing. CAT IV 600V covers measurements at the service entrance and main panels, while CAT III 1000V applies to fixed equipment downstream. If your work requires a higher CAT rating or a different voltage class, this model will not meet the safety standard.

Highlights

  • CAT IV 600V safety rating for high-voltage work
  • True RMS measurement gives accurate AC readings
  • Backlit 3999-count LCD with analog bargraph
  • Measures voltage, current, resistance, capacitance, frequency, temperature
  • Auto power off after 15 minutes saves battery

Specifications

BrandTENMARS
ModelTM-88
TypeTest Equipment
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

How much power does the TM-88 draw when the backlit LCD and analog bargraph run all day?

The TM-88 includes an auto power-off function that activates after 15 minutes of inactivity to conserve battery life during extended use.

What battery must I already own to operate the TM-88 out of the box?

The TM-88 requires a standard 9 V battery, which is not included in the package.

Will the TM-88 CAT IV 600 V rating protect my older 600 V test leads during high-energy measurements?

The TM-88 is rated CAT IV 600 V and CAT III 1000 V with 1000 Vrms protection; use only leads rated for the same or higher category.

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