Digital DC Amp meter, Watt Meter, Amp Hour & Watt Hour Meter

More than just a digital panel DC Amp meter or Watt meter, "Watt's Up" also

Watt's Up DC ammeter

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See Watt's Up Data Queue™
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* Review the user's manual *

measures eight DC values:

  • Amps: (0-100 peak)
  • Peak Amps & peak Watts
  • Amp-Hours (Ah): (0 - 65)
  • Watt-hours (Wh): (0 - 6554)
  • Watts: (0 - 6554)
  • Minimum voltage ("sags")
  • Voltage: (0 - 60)

Better than the dc ammeter of a digital multimeter (DMM) because of much higher current, lower insertion resistance and eight total measurements.

"Watt's Up" is precision made in the USA to ISO 9001 standards. It's ruggedly built and low cost.

See how to use our meters.

Try our meter simulator and see how it works.


It's useful in many DC Ammeter, Amp Hour & Watt Hour Meter & Wattmeter Applications.

Industrial users: try applying our AX7-C connector protectant to your installation's electrical connections to maximize performance and prevent corrosion and failure.

Easy To Use

Connect like jumper cables between a battery or DC power source and a load to measure all eight electrical parameters.

The "Watt's Up" low 0.001 Ohm insertion resistance means it doesn't interfere with the components you connect it to. Current is measured in the "negative" or "ground" lead.

"Watt's Up" comes with unterminated 14 gage, 3.8" long, hi-flex, high temperature, silicone insulated wires.

Summary of Features

  • Small size and lightweight - 2.8" L x 1.7" W x 0.83" D, 2.3 oz.
  • Built-in current shunt resistor
  • Low cost
  • Easily reset accumulated readings using external pushbutton switch.
  • Self powered (~ 0.007 Amps) or use an auxiliary battery
  • No computer needed
  • Full manual with electrical tutorial
  • 1% Accuracy
  • Precision and ruggedly made in USA to ISO 9001 (like Hewlett Packard uses) standards
  • One Year Warranty


See more detailed Amp meter specifications.

Example Connections

See Amp Meter connection diagrams.

Power Options

Self powered (draws ~ 7 mA) by your circuit so no batteries are needed. Or, you can power it (using our auxiliary power connector cable) with an external 4 to 60 Volt DC power source.



Check out the...

Amp Hour Meter Applications.

Just wanted to let you know I LOVE this meter! I'm playing around building CD ROM motors and the meter makes it so easy to objectively evaluate the performance of each motor. I am also very pleased with the size, construction and ease of use.

Thanks for a great product! - T.S.

Watt's Up Meter