SPER SCIENTIFIC® Water-Resistant Stopwatches

Water-Resistant Stopwatches Keep Moisture Out in Perfect Time

Water-Resistant Stopwatches ensure excellent water resistance with sonicly-welded cases. Each includes a 1.5V button-cell battery.
Stopwatches No. 49293 and No. 49294 are the most economical. Both models count by 1/100 sec. for the first 30 min., then by the second up to 24 hours. Units feature split interval function, calendar, alarm clock and hourly chime option. Both measure 2-1/2" x 2" x 1/2" and weigh just 1 oz. each. No. 49294 includes a NIST-Traceable Certificate of Compliance.
Large Display Stopwatches, No. 25044 and No. 25045, offer a 5/8"H display for easy reading at a glance. Units count by 1/100 second for the first 40 min., then by the second up to 24 hours. Features include lap function, alarm clock and calendar. Stopwatches weigh 2.4 oz. and measure 2-7/8" x 3-1/4" x 3/4". Includes one 1.5V button-cell battery. No. 25045 includes a NIST-Traceable Certificate of Compliance.
100-Memory Stopwatch, No. 90353, lets you keep your eyes on the test by storing previous 100 lap times. Counts up to 10 hours in 1/100 second resolution. Display simultaneously shows total elapsed time, current lap time, split time and lap counter. Watch is capable of calculating average strokes, beat or pulses per min. based on timing of three sample strokes. Measures 2-7/8" x 3-1/4" x 3/4". Includes a 1.5V button-cell battery and NIST-Traceable Certificate of Compliance.
Compliance: NIST-Certified models meet ISO/IEC 17025 accreditation.