Everyone in your lab will enjoy using the Traceable® fingertip timer. Repeat memory function for repetitive tests. It counts down from 99 minutes, 59 seconds in 1 second increments. Memory retains last programmed time automatically and eliminates the need to re-enter repetitive test times. Alarm can be silenced manually or turns off automatically after 30 seconds. The handy-sized timer (13⁄16 x 3½ x ½ in.) weighs only 1.2 oz. Supplied with a two-year silver oxide battery, magnet, hook-and-loop fastener and an ISO/IEC 17025 individually-serial-numbered Traceable® certificate to indicate instrument traceability to standards provided by N.I.S.T.