Reduce uncertainty in your life—own our friendliest timer. Counts down, alarms, times up, and tells time-of-day with uncompromising precision. But it’s also very user-friendly. Innovative 100-Hour Timer fulfills virtually every lab timing requirement. Multi-channels time down, time up, and tell time-of-day. It’s the workhorse of the lab. Timer operates on all channels simultaneously. It has five countdown channels, a stopwatch channel, and a time-of-day channel. Counts both up and down to 99 hours, 59 minutes, 59 seconds. Accuracy is 0.01%. Unique thru-zero feature allows counting down, alarming, and counting up. A time-out mode stops the timer for off periods in both up and down timing. T1 through T4 may be started simultaneously or individually. Extra-large, 1/3-inch-high display and vivid LCD digits continuously show the time remaining and are readable from 6 feet. Pleasant- sounding alarm may be turned off manually or is automatically silenced after 1 minute. A TIME IS UP message is flashed on the display. 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). Magnetic back permits the timer to be placed on lab oven or anywhere. Contains a flip-open stand, a spring fastener, and a lanyard opening. Supplied with a 2-year, replaceable, silver-oxide battery. Measures 2-3/4 x 2-3/8 x 5/8 inches. Weight is 1-1/2 ounces. Replacement battery Cat. No. CON1039.