---
product_id: 776034664
title: "STW515 Stopwatch/Clock with Backlit Display"
brand: "extech"
price: "₨27451"
currency: LKR
in_stock: true
category: "Extech"
url: https://www.desertcart.lk/products/776034664-stw515-stopwatch-clock-with-backlit-display
store_origin: LK
region: Sri Lanka
---

# Water resistant with backlit display 12/24 hr clock with programmable alarm 1/100th sec precision for 30 min STW515 Stopwatch/Clock with Backlit Display

**Brand:** extech
**Price:** ₨27451
**Availability:** ✅ In Stock

## Summary

> ⏳ Own Every Second, Day or Night!

## Quick Answers

- **What is this?** STW515 Stopwatch/Clock with Backlit Display by extech
- **How much does it cost?** ₨27451 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/776034664-stw515-stopwatch-clock-with-backlit-display)

## Best For

- extech enthusiasts

## Why This Product

- Trusted extech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day Timing Capacity:** Count up to 23:59:59.99 with 1-second resolution beyond 30 minutes—perfect for extended workouts or events.
- • **Precision Timing Mastery:** Track split times and dual competitors with 1/100th second accuracy for up to 30 minutes—never miss a millisecond.
- • **Customizable Clock & Alarm:** Switch effortlessly between 12 or 24-hour formats, set programmable alarms with snooze, and stay punctual with hourly chimes.
- • **Durable & Ready for Action:** Water resistant housing and included neckstrap keep you prepared for any environment or challenge.
- • **Visibility Anytime, Anywhere:** Backlit display with auto-off ensures clear readings in low light without draining your battery.

## Overview

The Extech STW515 Stopwatch/Clock combines professional-grade timing precision with versatile clock functions, including programmable alarms and hourly chimes. Featuring a water-resistant, backlit display and a robust 23-hour timing capacity, it’s engineered for athletes and managers who demand accuracy and reliability in any setting.

## Description

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.

## Features

- Stopwatch modes: elapsed timer, split time, and two competitor timer; clock mode: 12 or 24 hour clock format and programmable alarm, hourly chime setting, and 5min alarm snooze option
- Timing capacity: 23 hrs, 59 minutes, and 59. 99 secs; basic accuracy: 3 seconds/day
- 1/100th second resolution for 30 minutes; 1 second resolution up to 24 hours
- Calendar displays day, month and weekday
- Water resistant housing and backlit display with auto off after 5 seconds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07R8HHFLC |
| Best Sellers Rank | #335,644 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #146 in Stopwatches |
| Brand Name | Extech |
| Color | Green |
| Customer Reviews | 4.2 4.2 out of 5 stars (101) |
| Global Trade Identification Number | 00793950365557 |
| Included Components | Complete with meter, CR2032 battery and 39" (1 m) snap-away neckstrap |
| Item Dimensions D x W x H | 2.6"D x 0.8"W x 3"H |
| Item Type Name | Stopwatch |
| Item Weight | 3.2 ounces |
| Manufacturer | Extech |
| Manufacturer Part Number | STW515 |
| Manufacturer Warranty Description | 1 year. |
| Material Type | Plastic |
| Model Number | STW515 |
| Number of settings | 7 |
| Screen Size | 5.5 |
| UPC | 793950365557 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Extech
- **Color:** Green
- **Item Weight:** 3.2 ounces
- **Material:** Plastic
- **Product Dimensions:** 2.6"D x 0.8"W x 3"H

## Images

![STW515 Stopwatch/Clock with Backlit Display - Image 1](https://m.media-amazon.com/images/I/51e1JYPEH6L.jpg)

---

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**Shop now:** [https://www.desertcart.lk/products/776034664-stw515-stopwatch-clock-with-backlit-display](https://www.desertcart.lk/products/776034664-stw515-stopwatch-clock-with-backlit-display)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-06-21*