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Largest stopwatch digits ever developed (1/2-inch-high) provides ease in reading. Times to 24 hours. Unit features single-action, time-out, cumulative-split, and continuous timing. Timing resolution is 1/100 of a second for the first 30 minutes, continues timing to 23 hours, 59 minutes, 59 seconds with a 1-second resolution. Accuracy is 0.001 percent. To assure accuracy an individually serial-numbered Traceable Certificate is provided from our ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). Water-resistant, O-ring-sealed, and shock-resistant ABS plastic case has non-slip rubber sides-ideal for lab and plant use. Supplied with a detachable clip for clipping onto notebooks or clipboards. Also comes with Velcro™ for vertical mounting anywhere. As a chronograph, the unit displays time-of-day in hours, minutes, and seconds, AM/PM, date, and day of the week. It also has a time-of-day alarm. Measures 3" length by 2-1/2" width by 7/8" thick and weight is 2-1/2 ounces. Supplied complete with Traceable Certificate, 2-year, always-on battery, lanyard, and clip.

Thomas 1051 ABS Plastic Jumbo Digit Stopwatch with 1 2" High LCD Display 0.001 Percent Accuracy 3" Length x 2-1 2" Width x 7 8" Height - BB1EL8RS5