The Traceable® Bench Timer has a range of 0.001 second to 999 hours. Precise timing and an eight-digit, 1/2-inch-high, bright-intensity LED display make it the choice for all industrial and biomedical tests. Reads in four different formats: 99 hours, 59 minutes, 59 seconds, 99 hundredths; 99999.999 seconds; 9999.9999 minutes; and 999.99999 hours. Ultra-high stability and sealed quartz-crystal provide precision timing immune to AC line fluctuations. If the power fails, a 9-volt backup battery continues timing until power is restored. To assure accuracy an individually serial-numbered Traceable® Certificate is provided from the manufacturer’s ISO 17025 calibration laboratory accredited by A2LA. It indicates traceability to standards provided by NIST (National Institute of Standards and Technology). Fulfills ISO 9000 requirements. Reads to 0.001 second and is accurate to 0.001%. The Bench Timer features four timing modes: single-action, time-in/-out, cumulative-split, and interval-split. Up to 12 different events may be timed simultaneously. An audible up-alarm may be set to signal on each channel. Space-station feel and sound are produced by a keystroke of just 3/8-inch and an audible click. The Bench Timer is housed in an attractive, high-impact ABS plastic case designed for hard laboratory use. Supplied with Traceable® Certificate and 9-volt battery. For use with 120 VAC. Size is 6-5/8 x 4-3/4 x 3-1/2 inches. Weight is 1-1/4 pounds. Replacement battery Cat. No. CON1112.