Timers and Stopwatches
Stopwatches are used to time the flow of liquid through the U-tube of a Blaine Air Apparatus to determine the fineness of Portland cement and time of flow when testing mortar, concrete and cements.
LA-4360 has LCD digital display registering 1/100 second up to 30 minutes, 1 second up to 24 hours, split time, water resistant, six-digit readout.
LA-4365 displays time, calendar, hours, minutes and seconds.
