Easy-to-use timer has a repeat memory function for repetitive tests. Three-key operation can be learned in less than 10 seconds. Everyone in the lab will enjoy using this always-at-your-fingertips timer. May be placed on incubators, refrigerators, and ovens with the magnet on the back. Also supplied with hook & loop mounting strips to place the unit on cabinets or walls. Counts down from 99 minutes, 59 seconds in 1-second increments. Accuracy is 0.01%. Dedicate this unit to a specific test. Memory retains last programmed time, eliminating the need to re-enter test times. Alarm may be silenced manually or turns off automatically after 30 seconds. Handy size (1-13/16 x 3-1/2 x 1/2 inches) is ideal for use everywhere in the lab. Weight is only 1-1/4 ounces. 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). Supplied with silver-oxide battery, Traceable Certificate, magnet, and hook & loop. Replacement battery Cat. No. 1039.