Set this ruggedly-built, mechanical compact timer from 1 to 120 minutes. A loud, 5-second ring signals elapsed time for all lab tests. Moving pointer always shows time remaining to zero. The modern design and compact size is only 2-3/4 x 2-3/4 x 2 inches. Weight is just 3-3/8 ounces. Made from high- impact ABS plastic construction makes it resistant to lab chemicals and virtually indestructible. The speed-read dial is graduated with oversized markings for easy reading. Selecting the time automatically winds the timer. May be viewed from above or stands upright on the lab bench. Powerful spring ensures 99% accuracy.