Traceable® Plus Clock Digital Alarm Countdown/up 1 Channel Timer, which counts up to 100 Hours with a NIST Traceable® Calibration Certificate (each)

Costs so little, everyone deserves one
The handiest timer ever designed clips to your lab coat, belt, notebook, clipboard, or anywhere. You’ll never lose your own personal timer.

Six-digit LCD always shows the time remaining in hours, minutes, and seconds
Program it in the countdown mode, in 1 second increments, from 100 hours to 1 second. At zero, a loud-beeping alarm sounds for 60 seconds or may be silenced manually. In the stopwatch mode, it times from 1 second to 99 hours and then repeats. Accuracy is 0.005% quartz crystal. Also has a time-out feature in both up and down counting.

Digital Timer Plus is the perfect reminder when you have to be away from the lab
Notifies you when to read a color change, remove a sample from an oven, or go to a meeting. Big-digit, 1/3-inch-high display is easy to read. Five-button operation is quick and intuitive (no need to ever read the directions). Stopwatch operation takes just the press of a single button.

Quartz-crystal accuracy
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). Timer has a rugged, chemical-resistant ABS plastic case, key-chain, lanyard, magnet for placing on metal, and a 1-1/2-year, continuous-use, replaceable silver-oxide battery. Dimensions are 2 x 1-1/2 x 3/4 inches. Weight is just 1/2 ounce. Replacement battery Cat. No. 1039.