Measuring device

Noob here!
Migrated from RC and brought something with that I find neat!

http://www.rc-electronics-usa.com/ammeters/dc-amp-meter.html

It measures and stores Volts (current and min.), Amps (current and max.) Watts (current and max.) along with Amp/hours and Watt/hours. As long as a source of min. 4 Volts is applied.

Just some RC batteries and a 12V Halogen bulb for show.

I remember finding those when I was searching for something to put in line from my vehicle battery to my car audio amplifiers to show me how many amps it was pulling and how many watts it was putting out under load. The company that makes them has a few neat little items.

Yepp, it´s a nice tool ... I´m using it mostly together with a DIY-electonic-load to measure battery capacity. But there are plenty of other applications for it ...

If you connected a voltage source to the three pin (servo) connector, such as a 9V battery, you can use the Watt´s Up with voltages lower than 4V and almost more important it keeps its data when you disconnect the main voltage source. A "reset" can be done too via the three pin conn.

Only thing what bothers me a bit is that it "counts" only in one direction ...