I recently used the Sensor Screen to debug and evaluate multiple types of sensors on both work and home projects and it did exactly what I needed.
Awesome! Would highly recommend!

This comes as a kit. But, the capabilities for being able to test sensors without the control system are important.

'I got a chance to use one of these, with the help of AM, at the championships a couple of weeks ago. We had a CIMcoder that didn't seem to be working quite right. I spoke with AM about it, and they came over to our pit with the tester. We connected it, and discovered that one of the 2 cimcoders wasn't putting any counts out until it was rev'ed up to about 1500-2000 RPM.
It was really handy in that it powers the sensor, gives a direct readout of the RPM and direction. We still have to figure out what's up with the cimcoder once the robot is shipped back, but this tool is really handy and we are going to get one!
Mike
2846 FireBears'

Good documentation Needs and SD card for updating Small device with a lot of features Expandable so never worrying about obsolences.