Datasheet

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PRODUCT DATASHEET

Features

PRODUCT DATASHEET

STW515 Stopwatch/Clock

with Backlit Display

Extech’s STW515 is a digital stopwatch and clock. This

stopwatch features a 12 or 24 hour clock format and

programmable alarm with hourly chime. It also has three

Stopwatch Modes: Elapsed Timer, Split Time, and Two

Competitor Timer. The backlight can be used for viewing at

night or in dimly lit areas and turns off automatically after

ﬁve seconds. Calendar displays day, month, and weekday.

Complete with CR2032 battery and 39" (1m) snap-away

neck strap.

Features

• Stopwatch Modes: Elapsed Timer, Split Time,

and Two Competitor Timer

• Timing capacity: 23 hrs, 59 mins, and 59.99 secs;

Basic accuracy: ±3 seconds/day

• 1/100th second resolution for 30 minutes

• 1 second resolution up to 24 hours

• Clock Mode: 12 or 24 hour clock format

• Programmable alarm and hourly chime setting

• 5-minute alarm snooze option

• Calendar displays day, month and weekday

• Backlight turns off after 5 seconds

• Water resistant housing

• Dimensions: 2.6 x 3 x 0.8" (68 x 77 x 19 mm);

Weight: 2 oz (56 g)

• Complete with CR2032 battery and 39" (1 m)

snap-away neckstrap

Ordering

STW515 N * ..... Stopwatch/Clock with Backlit Display

www.extech.com

Rev. 3/27/19

UPC Code: 793950365557

N * Indicates products that are available with optional calibration traceable to NIST. Order with -NIST after part number for product plus Calibration Certiﬁcate.