• Patented (US patents 6,052,053 and 6,205,408) Dual Wire Wrist Strap provides redundancy
  Even if one dual wire wrist strap conductor is severed, operator has reliable path-to-ground with other wire
• Use with resistive loop technology continuous monitor
  Continuously verifies the proper resistance to ground of the operator
• 7mm sockets are stamped
• 304 stainless steel back plate
• Woven Silveron™ fabric infused with silver monofilament conductive fiber
  Comfortable and hypo-allergenic
• Superior warranty
• UL listed
• Made in the United States of America

What the ESD Association says about testing wrist straps:

Per ESD Handbook TR20.20 section 5.3.9.1 Wrist Strap Checkers - “Wrist strap checkers have historically been the primary tool for testing the operation of the wrist strap system including, the wristband, grounding cord and most importantly, the electrical integrity of the contact between the wristband and the wearer. Wrist strap checkers measure the resistance of the entire system.”

ANSI/ESD S20.20 Paragraph 6.2.2.1 Personnel Grounding Requirement "All personnel shall be bonded or electrically connected to ground or contrived ground when handling ESD sensitive items. When personnel are seated at ESD protective workstations, they shall be connected to the common point via a wrist strap system."