Once the PDU was airborne, "it comes with mounting ears for 19" racks. These can be easily taken off and replaced with the included rubber feet. I did a thorough analysis of your sample unit in addition to all the usual tests we do in production so that we have a baseline using our own instrumentation and the EM100 meter. Below is the summary. Please ask any questions. The gadget is what it is, an amateur meter that takes only half the measurements (just differential mode), has a high noise floor and doesn't really measure peaks. So treat your test results with a healthy dose of scepticism. I ordered an extra EM100 with the hope of simplifying our production test for each unit which uses an oscilloscope but it is just not up to the task. Should you want to engage in professional-grade measurements, you'd need an oscilloscope and our MSN17 adapter. Among many other places, it is used by NIST (National Institute of Standards and Technology) that sets the measures in all fields for the country just like the NPL does in the UK."