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Red handheld digital multimeter TM-86 with LCD backlit display and test leads

TENMARS ELECTRONICS

TENMARS ELECTRONICS TM-86 Digital Multimeter 600V CAT IV electrician tool

SKU CH-H75B-931XG MPN TM-86

Measures AC/DC voltage to 600 V, current to 10 A, resistance, capacitance, frequency and duty cycle with CAT IV 600 V safety rating and backlit 3999-count display

  • TypeTest Equipment
  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • CAT IV 600V safety rating protects against high-energy transients
  • Backlit 3999-count LCD ensures clear readings in low light
  • Measures AC/DC voltage up to 600V and current up to 10A
  • Duty cycle 20-80% and frequency to 99.99KHz for signal analysis
  • Auto power off after 15 minutes extends battery life

Digital multimeter for electricians

The TM-86 is a handheld digital multimeter rated CAT IV 600V and CAT III 1000V for electrical installation and maintenance work. It measures AC and DC voltage up to 600V, AC and DC current from 0.1A to 10A, resistance, capacitance, frequency and duty cycle. A backlit LCD shows 3999 counts and the meter includes continuity buzzer, diode test, data hold, range hold and REL functions.

Upgrade from basic clamp meters

Technicians moving from clamp-only tools gain full voltage, resistance, capacitance and frequency ranges plus duty-cycle measurement from 20% to 80%. The jump is worth it when a job requires verifying both voltage presence and signal quality on the same circuit without swapping instruments. Auto power off after 15 minutes preserves the battery during site visits.

Sustained measurement behaviour

Sampling runs at 2.5 readings per second, giving a steady update rate while monitoring a circuit over minutes rather than a single burst. DC voltage accuracy is specified at 0.8% plus 2 counts, AC voltage at 0.8% plus 3 counts, and current ranges at 1.2% plus 3 counts across the 0.01A to 10A span. Resistance and capacitance accuracies hold at 1.0% plus 2 counts and 3% plus 5 counts respectively during extended use.

Highlights

  • CAT IV 600V safety rating protects against high-energy transients
  • Backlit 3999-count LCD ensures clear readings in low light
  • Measures AC/DC voltage up to 600V and current up to 10A
  • Duty cycle 20-80% and frequency to 99.99KHz for signal analysis
  • Auto power off after 15 minutes extends battery life

Specifications

BrandTENMARS
ModelTM-86
TypeTest Equipment
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

What safety rating does the TM-86 multimeter carry for 600 V work?

The TM-86 is rated CAT IV 600 V and CAT III 1000 V, so it meets the overvoltage category required for service-entrance and distribution-panel measurements at 600 V.

Which step do users often miss when installing the meter for the first time?

The meter ships without a battery; you must open the rear compartment and fit a 9 V cell before any measurement can be taken.

What consumable will need replacement during the TM-86’s service life?

The 9 V battery that powers the unit will need periodic replacement; the test leads supplied in the box should also be inspected regularly for insulation damage.

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