The 780 Economy Combo Tester will individually and simultaneously test each wrist strap and heel grounder for proper connection and resistivity value in less than three seconds. With speed, ease and clarity, colored LED shows test results. No computer is necessary for pass / fail testing so you don’t pay for features you don’t need! Adjustable limits add versatility for ESD managers that may need to modify verification plans. This economical tester can also be purchased with a heavy-duty stand. Meters are warranted one year from date of purchase on parts and labor. Contact Amstat for calibration.