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Small rectangular USB power meter with Type-A and Type-C ports, digital LCD screen, pocket-sized dark casing

ET920 USB Power Meter USB-A USB-C Voltage Current Capacity Energy Resistance

SKU CH-HWBY-T3470

Measures USB-A and USB-C voltage, current, capacity, energy and resistance for up to 1000 hours

  • Team affiliation1 Piece
  • Key featuresUSB Digital Meter, USB-A and USB-C, Meets Relevant Industry
  • Overall height9.04 L x 1.95 W x 0.53 H inches
  • Overall width9.04 L x 1.95 W x 0.53 H inches
  • Overall length9.04 L x 1.95 W x 0.53 H inches
  • Product weight1.7 oz
  • Test 3–20 V DC and up to 5 A on USB-C for broad charger compatibility
  • Monitor voltage, current, capacity, energy and resistance continuously for 1000 hours
  • Store and recall 10 readings to compare results quickly
  • Overload detection protects devices and power sources during testing
  • Pocket-sized meter survives 6.6 ft drops for jobsite durability

USB Power Meter for Type-A and Type-C

The Klein Tools ET920 is a pocket-sized digital meter that measures voltage, current, capacity, energy and resistance on USB-A and USB-C ports. It suits technicians and engineers who need to verify charger output or cable performance in the field or on the bench. Buyers who require automated logging software or multi-channel analysis will not find those functions here.

Thermals, Noise and Power Draw

The meter draws operating power directly from the USB port under test and adds no active cooling, so it generates no audible noise and negligible heat during use. Its internal circuitry consumes only the small current required for the LCD and measurement functions, leaving the source supply unaffected.

Bundled Accessories and Software Impact

The package includes the meter itself with a 6.6 ft drop-rated housing and the ability to store ten readings for later recall. No companion application, PC software or additional probes are supplied, so all data review happens on the built-in display.

How it compares

Measured against everything we stock in Multimeters & Electrical Testers, at today’s prices. Recalculated every night.

Price $55.99
Pricier than about 79% of the 971 comparable items (median $30.99).

Specifications

Product
Brand nameaFe Power
Product typeClamp
Size & build
Overall height9.04 L x 1.95 W x 0.53 H inches
Overall width9.04 L x 1.95 W x 0.53 H inches
Overall length9.04 L x 1.95 W x 0.53 H inches
Product weight1.7 oz
More details
Team affiliation1 Piece

Questions about this item

How do I install the ET920 between my charger and device, and what orientation mistake should I avoid?

Plug the meter's USB-A or USB-C input into the power source, then connect your device to the meter's output port; reversing source and load will give no reading.

What maintenance will the ET920 need after extended use on the job site?

No calibration is required; wipe the LCD and housing with a dry cloth and verify the 6.6 ft drop protection remains intact after heavy impacts.

What measurement limit will I hit first during a long 1000-hour logging session?

The timer stops recording after 1000 hours, while voltage, current, capacity, energy and resistance continue within their 3 to 20V and 0.05 to 5A ranges.

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