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Red handheld digital multimeter model DT-9919 with yellow LCD display and test leads

CEM

CEM DT-9919 Professional Waterproof True RMS Digital Multimeter electrician tool

SKU CH-A9HQ-NR362 MPN DT-9919

A waterproof True RMS multimeter with 50,000-count resolution, 0.03% basic DC accuracy and CAT IV 600V / CAT III 1000V safety rating

  • TypeTest Equipment
  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • True RMS accuracy of 0.03% basic DC precision
  • IP67 waterproof rating protects against dust and immersion
  • CAT IV 600V and CAT III 1000V safety compliance
  • 50,000-count resolution with analog bargraph and backlight
  • Double-molded housing with 1000V input protection on all ranges

Professional waterproof multimeter

The CEM DT-9919 is a true RMS digital multimeter built for industrial and electrical environments. Its IP67 rated double-moulded housing protects against dust and water ingress during field work. The instrument targets electricians and technicians who need reliable measurements in harsh conditions. Safety ratings meet EN 61010-1 CAT IV 600V and CAT III 1000V standards.

Thermals noise and power draw

As a battery-operated handheld meter the DT-9919 produces no audible fan noise and negligible heat during normal operation. Power is drawn from user-supplied cells which are not included in the package due to air-shipping restrictions. All input ranges are protected by 10A/1000V and 0.5A/1000V fuses. The 1000V input protection across every range limits stress on internal components.

Bundled accessories and software

The standard box contains the meter only; batteries and an English manual must be sourced separately. Manufacturer highlights reference data-logging capability and 50,000-count resolution shared with the 9949 and 9959 models. A large LCD with analogue bargraph and backlight ensures readability in low light. Basic DC accuracy is specified at 0.03% for precision tasks.

Highlights

  • True RMS accuracy of 0.03% basic DC precision
  • IP67 waterproof rating protects against dust and immersion
  • CAT IV 600V and CAT III 1000V safety compliance
  • 50,000-count resolution with analog bargraph and backlight
  • Double-molded housing with 1000V input protection on all ranges

Specifications

BrandCEM
ModelDT-9919
TypeTest Equipment
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

How do I install the batteries in the DT-9919, and what step do people often miss?

The meter ships without batteries due to air-shipping rules. Open the rear battery compartment, insert the required cells observing polarity, then reseal the cover fully so the IP67 rating stays intact.

Which parts will need replacement after extended use on the DT-9919?

The 10A/1000V and 0.5A/1000V input fuses are the primary consumables; replace them with the same ratings when they blow to maintain CAT IV 600V / CAT III 1000V protection.

What measurement limit appears first during sustained high-current work on the DT-9919?

The 10A fused current range is the first hard limit; exceeding it opens the 10A/1000V fuse and stops current measurement until the fuse is replaced.

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