We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Red handheld digital multimeter with backlit LCD and analog bargraph display

TENMARS ELECTRONICS

TENMARS ELECTRONICS TM-87 Digital Multimeter 3999 counts CAT IV 600V

SKU CH-BM3N-S8J06 MPN TM-87

Measures AC/DC voltage to 1000V and current to 10A with True RMS, 3999-count backlit LCD, analog bargraph, and CAT IV 600V safety rating

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • CAT IV 600V rating protects against high-energy transients
  • True RMS gives accurate AC readings on non-sinusoidal waveforms
  • 3999-count LCD with backlight and analog bargraph for clear visibility
  • Measures AC/DC voltage to 1000V and current to 10A
  • Auto power-off after 15 minutes extends battery life

Digital Multimeter with True RMS

The Tenmars TM-87 is a digital multimeter designed for electrical testing up to 1000V. It provides True RMS measurement for accurate AC readings. The meter carries a CAT IV 600V and CAT III 1000V safety rating. An LCD with 3999 counts and an analog bargraph display the values.

Suited for electricians and high-energy panels

This meter suits electricians and technicians working on mains supply or distribution panels where CAT IV 600V protection is required. True RMS supports non-linear loads such as variable speed drives. It is not suited for buyers who need temperature measurement or higher resolution than 3999 counts.

CAT IV 600V safety rating

The decisive specification is the CAT IV 600V overvoltage category combined with 1000V input protection. This rating permits measurement at the service entrance and on primary supply circuits. Verify that your working environment demands this category before purchase.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $123.99
Pricier than about 60% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameTENMARS
Model nameTM-87
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What test leads and power source are required before using the TM-87?

The meter ships with test leads and a carrying case; a 9V battery is not included and must be supplied separately.

Will the TM-87 measure voltage safely on a legacy CAT III 1000V panel?

Yes, the TM-87 is rated CAT IV 600V and CAT III 1000V, so it is approved for measurements on that older panel.

How can I confirm the TM-87 is operating correctly after power-up?

Select a known voltage source within the 1000V DC range, verify the LCD shows a stable reading with the backlit display active, and check that the analog bargraph responds smoothly.

More in Electrical Trade Tools & Kits

Similar items