У вашего броузера проблема в совместимости с HTML5
How does Joulescope's static current measurement capability stack up against mulitmeters? This video compares Joulescope against the BK Precision 391A and the eevblog 121GW.
Links:
Joulescope: https://www.joulescope.com
BK Precision 391A: http://www.bkprecision.com/products/multimeters/391A-test-bench-true-rms-dmm-with-protective-rubberized-case.html
eevblog 121GW: https://www.eevblog.com/product/121gw/