This combination wrist strap/footwear tester automatically switches internal circuitry to test at the correct range. Simply touch the metal test plate and colored LEDs display the test results. A green light notifies user of safe or "passing" test range. Red LEDs along with an audible signal warn user of "failing" test results which are either higher or lower than the specified range. Nominal pass range is 750K - 10MW for wrist straps and 750K - 100MW for footwear. Accuracy is ±10%. Tester includes 9V battery and NIST-traceable Certificate of Calibration, and can be purchased with or without footwear test stand.