100 Memories of split and lap times. This Sper Scientific Stopwatch will count up or down to 20 hours in 1/100 second resolution and offers many advanced features. The large 3 line display simultane...

Read the temperature and RH inside a humidity chamber or desiccator without opening the door. Mount the wireless thermometer hygrometer sensor in green houses, warehouses, air ducts and other hard to ...

Features the largest display available on a timer: 3 x 2-1/2". Can be easily read from across a room. Simultaneously displays either one count up channel and a clock, or two count down channels. All c...

Features the largest display available on a timer: 3 x 2-1/2". Can be easily read from across a room. Simultaneously displays either one count up channel and a clock, or two count down channels. All c...

This attractive watch automatically adjusts to the correct time based on radio signals broadcast by the NIST’s atomic clock located in Boulder, CO. Serves as a reference for exact time in the lab or...

The 2 1/2”H x 1 1/4"W bright red LED digits are easily seen from across the room in darkness as well as in light. This wall clock has a 12-hour display format and has PM and alarm indicators. Both t...

Counts up to 24 hours in 1/100th second resolution for the first 30 minutes with a 1 second resolution thereafter. Split interval function. Also has a 12/24 hour alarm clock, calendar, and an hourly c...

Loud audible alarm Bright visual alarm Large digits & off button Sturdy rubberized case Select adjustable volume audible and/or visual alarms. On full volume this is our loudest timer. Adjust th...

4 independent channels each of which counts up or down for any interval from 1 second to 100 hours. Extra large display indicates channels in use. Each one has a distinctive 1 minute alarm. Automatica...