Timer signals drying and incubating times, helps catch all test results, and even alarms for appointments. The ideal bench-mate for quality-control and experimental requirements. Simple operation. Accuracy is 0.001%. Individually serial-numbered Traceable® Certificate indicates the timer's traceability to standards provided by NIST. Program three different activities from 9 hours, 59 minutes, 59 seconds to 1 second on this portable timer. Each channel has a distinct electronic alarm and display indicator. Alarm "off" operates manually or is silenced automatically after 1 minute. Large 1/4"-high LCD digits are easy to read. Mini-size and light weight make it the ideal portable. Chemical-resistant ABS case is 3 x 3 x 1-3/8". Weight is 4 ounces. Supplied with Traceable® Certificate and two AA alkaline batteries for 2 years of normal usage.