Times up from 0.01 second to 9 hours, 59 minutes, 59 seconds, and 99 hundredths of a second. Switchable between cumulative and interval-split, the unit also allows an infinite number of time-outs. Oversize keys make it easy to use. Digital display is 3/4-inch-high and is readable from 10 feet.

Unit features precise, quartz-crystal Traceable timing for enzyme tests, viscosity measurements, animal studies, and all timed lab tests. Accurate to 0.001% with resolution to 0.01 second. Engineered for ease of operation, accuracy, and reliability.

An individually-numbered Traceable Certificate provided with each unit, assures accuracy from our ISO/IEC 17025:2005 (1750.01) calibration laboratory accredited by A2LA. It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement. Fulfills ISO 9000 needs, lab certification requirements, and governmental demands. Portable design permits the unit to be moved easily. Attractive, high-impact ABS plastic case is designed for hard laboratory use. Supplied with a battery (2-year continuous). Size is 4 x 4-1/4 x 1-3/4 inches. Weight is 7 ounces. Replacement battery Cat. No. 1111.

Warranty: 1-year