Power Measurement

AF-2690

This USB In-Line Voltage and Current Meter with OLED Display is a lot like the Charger Doctor we carry - if the doctor was a talented surgeon who just lost her medical license and has nothing to lose.  Just like the charger doctor, you can use this meter to find out if your vo...

AF-705

Put a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but we thought it would be great on a breadboard or enclosure. This is the 3-wire version of the volt meter, two wires are used to power it and the th...

AF-1852

Help! This patient is heating up! Is the voltage too low? Is the current draw too high? Is there a doctor in the house? Oh, thank goodness, the Charger Doctor is here! Right on time...Doctor, can you tell us what the current draw is? What about the voltage? Thanks to the Docto...

AF-574

Put a current meter anywhere with this very handy display. This panel meter requires a DC voltage to run, and then has two thick gauge wires to measure current draw. A shunt is already on board so its very easy to hook up!

AF-575

Put a voltage meter anywhere with this very handy display. This panel meter simply connects to whatever DC supply you are trying to track, easy to wire up!Simply connect the red wire to the positive supply, and black to negative ground. The display has a microcontroller that w...

AF-1164

This breakout board will solve all your current-monitoring problems.

AF-460

Put a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but we thought it would be great on a breadboard or enclosure. This is the 2-wire version of the volt meter, two wires are used to power it and measur...

AF-3989

Analog panel meters are arguably not as blingy or flashy as LEDs, but their simplicity adds a touch of elegance and makes them easier to read quickly.

AF-3990

Analog panel meters are arguably not as blingy or flashy as LEDs, but their simplicity adds a touch of elegance and makes them easier to read quickly.

AF-3624

This Mini Power Meter with Voltage, Current, Watts, mAh & mWh Display (whew that is a mouth-full) is a lot like the USB In-Line Voltage and Current Meter we carry but can  be used with a wide range of voltages (not just USB connections). Measure the working voltage and current...

AF-3626

What do you do when you need a variety of measurements on your current project? (pun intended!) You could buy a slew of test equipment tools OR you could use this very nice panel-mount multi-function power meter! This power meter comes with a nice, big (and backlit!) LCD scree...

DF-FIT0517

qualMeter is an easy and cost-efficient DIY device, which can help you to simply diagnose the quality of your USB charging cable and charger in a glance.

DF-FIT0518

qualMeter miniLoad is specially designed for extending the qualMeter Basic's charger output testing range. When plugging miniLoad into qualMeter Basic it provides the ability to allow qualMeter Basic to test 2.1/2.4/3A output of the regular USB charger. Simply use the switch t...

DF-FIT0519

qualMeter is an easy and cost-efficient DIY device, which can help you to simply diagnose the quality of your USB charging cable and charger in a glance.

AF-1549

This little USB port go-between is like a speed gauge for your USB devices.

AF-904

This breakout board will solve all your power-monitoring problems.