Large Display Water Resistant Stopwatch
This Sper Scientific Stopwatch features a large display with 1/100 second resolution, split time display, clock/calendar mode and alarm functions.
This Sper Scientific Stopwatch is shock and water resistant, and has a large 5/8" high display for good visibility. 1/100 second resolution stopwatch with split time display. Also features an alarm clock with chime, calendar and 12 or 24 hour time modes. The rounded, ergonomic design fits neatly in your hand.
Lanyard, instructions and button cell battery are included.
Dimensions: 2¼" x 3" x ¾"
Weight: 1.5 oz

*Certification Option
N.I.S.T. traceable Certificate of Compliance is available at an additional cost (select option above).
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Comparison Chart
Sper Scientific Stopwatch Comparison
| Model | 810012 | 810022 | 810029R | 810033 | 810035A | 810036A | 810048 |
|---|---|---|---|---|---|---|---|
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| Description | Water Resistant Stopwatch | Large Display Stopwatch | Countdown Stopwatch | Large Display Water Resistant Stopwatch | Decimal Display Stopwatch | 100 Memory Water Resistant Stopwatch | Advanced Decimal Display Stopwatch |
| Digit Height (mm) | 7 | 8 | 5 | 5 | 12 | 5 | 4 |
| Cord Length (in) | 23.5 | 26 | 25 | 24 | 22 | 23 | 23 |
| Timing Range | 24 Hours | 24 Hours | 10 Hours | 10 Hours | 20 Hours | 24 Hours | 20 Hours |
| Resolution | 1/100 Sec | 1/100 Sec | 1/100 Sec | 1/100 Sec | 1/100 Sec | 1/100 Sec | 1/100 Sec |
| Water Resistant | Yes | — | — | Yes | Yes | Yes | Yes |
| Count Up | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Count Down | — | — | Yes | Yes | — | Yes | Yes |
| Timer | — | — | Yes | Yes | — | Yes | Yes |
| Lap Memory | — | — | 8 | 60 | — | 100 | 500 |
| Alarm | — | Yes | Yes | Yes | Yes | — | Yes |
| Clock | — | Yes | Yes | Yes | Yes | Yes | Yes |
| Pace Setter | — | — | Yes | Yes | — | Yes | Yes |
| Hourly Chime | Yes | Yes | — | — | Yes | — | Yes |
| Calendar | Yes | Yes | — | Yes | Yes | Yes | Yes |
| Battery Type | (1) LR44 | (1) AA | (1) CR2032 | (1) CR2032 | (1) CR2032 | (1) CR2032 | (1) CR2032 |






