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Red CEM DT-9979 digital multimeter with LCD display

CEM

CEM DT-9979 True RMS Digital Multimeter 50000 counts IP67 CAT IV 600V CAT III 1000V electrician tool

SKU CH-BYFW-YHF61 MPN DT-9979

A True RMS digital multimeter with 50000 counts, IP67 rating and CAT IV 600V / CAT III 1000V safety for industrial electrical work

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • True RMS accuracy for reliable readings
  • 50000-count display shows fine detail
  • IP67 rating resists water and dust
  • CAT IV 600V and CAT III 1000V safety rating
  • EN 61010-1 compliant for industrial use

Industrial multimeter for electricians

The CEM DT-9979 is a professional True RMS digital multimeter built for industrial electrical work. It provides 50000 count resolution on a full graphics LCD with white backlight for clear readings in varied lighting. The meter carries EN61010-1 safety ratings of CAT IV 600V and CAT III 1000V with 1000V input protection across all ranges. An IP67 rated double-moulded housing adds waterproof durability for harsh job-site conditions.

Check power and documentation needs

The standard package ships without batteries due to air transport restrictions on hazardous materials. You must source suitable cells locally before the meter can be used. An English user manual is not included in the box; the supplier directs buyers to request a copy from customer service after purchase. Verify that your test leads and probes are rated for the same CAT IV 600V and CAT III 1000V environment the meter is certified for.

Bluetooth logging changes workflow

Built-in Bluetooth connectivity lets the meter transmit measurement data to a paired device for remote monitoring and Trend Capture analysis. This allows unattended logging of equipment performance over time, helping technicians spot intermittent faults without staying at the panel. Onboard datalogging stores readings internally when a wireless link is not practical. These features shift the tool from spot-checking to continuous diagnostic recording.

How it compares

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

Price $246.99
Pricier than about 83% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameCEM
Model nameDT-9979
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What comes in the box with the DT-9979 and what must I supply?

The standard package includes the multimeter unit; you must purchase batteries locally because air-shipping rules prevent them from being included.

Which measurement category matches the 600 V and 1000 V ratings on the DT-9979?

The meter is rated CAT IV 600 V and CAT III 1000 V per EN 61010-1, so choose the category that fits the installation you are testing.

What does the 50000-count display mean for daily readings on the DT-9979?

It provides high-resolution True RMS measurements with fast A/D conversion, datalogging and Trend Capture for spotting intermittent faults.

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