The Transforming Technologies PDT800K Ohm Metrics™ Deluxe "Near-Fail" Wrist Strap/Footwear Combo ESD Tester is a comprehensive, accurate tool to fully meet your daily ESD checking needs. Independently tests the left and right foot and wrist band and an innovative LCD screen will instantly display the test result and the measured resistances. The proactive "Near-Fail" indicator alerts the user that the ESD grounding device under test is nearing failure levels. Meets or exceeds the requirements of international standards such as ANSI/ESD S20.20-2007 or IEC61340-2007. The PDT800K is comparable to 3M 747 Wrist & Foot Strap Tester.