---
product_id: 3571967
title: "- Sper Scientific Water Resistant Stopwatch 810012 - Digital Timer with Split Interval Function, 12/24 Hour Alarm Clock & Calendar for Sports, Labs, Fitness, and More"
brand: "sper scientific"
price: "₨12499"
currency: LKR
in_stock: true
reviews_count: 8
category: "Sper Scientific"
url: https://www.desertcart.lk/products/3571967-sper-scientific-water-resistant-stopwatch-810012-digital-timer-with-split
store_origin: LK
region: Sri Lanka
---

# Water-resistant for outdoor use 12/24 hr alarm & calendar 1/100th-sec precision for 30 min - Sper Scientific Water Resistant Stopwatch 810012 - Digital Timer with Split Interval Function, 12/24 Hour Alarm Clock & Calendar for Sports, Labs, Fitness, and More

**Brand:** sper scientific
**Price:** ₨12499
**Availability:** ✅ In Stock

## Summary

> ⏳ Don’t just measure time—own it with precision and style!

## Quick Answers

- **What is this?** - Sper Scientific Water Resistant Stopwatch 810012 - Digital Timer with Split Interval Function, 12/24 Hour Alarm Clock & Calendar for Sports, Labs, Fitness, and More by sper scientific
- **How much does it cost?** ₨12499 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/3571967-sper-scientific-water-resistant-stopwatch-810012-digital-timer-with-split)

## Best For

- sper scientific enthusiasts

## Why This Product

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

## Key Features

- • **Lab-Grade Accuracy:** Optional NIST traceable certification ensures professional-grade precision trusted in scientific and regulated environments.
- • **All-in-One Timekeeper:** Stay on schedule with a built-in 12/24-hour alarm clock, calendar, and hourly chime—your daily productivity sidekick.
- • **Built for the Elements:** Water-resistant design means no sweat or splash can stop your timing, whether poolside or trailblazing.
- • **Split Interval Tracking:** Capture lap and split times effortlessly to optimize your training and beat your personal bests.
- • **Precision Timing Mastery:** Track every millisecond with 1/100th-second accuracy for the first 30 minutes—perfect for elite performance analysis.

## Overview

The Sper Scientific 810012 Stopwatch delivers ultra-precise timing with 1/100th-second resolution for the first 30 minutes and up to 24 hours total count. Featuring a split interval function, 12/24-hour alarm clock, calendar, and water-resistant casing, it’s engineered for athletes, fitness enthusiasts, and lab professionals alike. Compact and lightweight, it offers optional NIST traceable certification for verified accuracy in demanding environments.

## Description

Digital Stopwatch - Water Resistant Counts up to 24 hours in 1/100th second resolution for the first 30 minutes with a 1 second resolution thereafter. Split interval function. Also has a 12/24 hour alarm clock, calendar, LCD display, and an hourly chime option. N.I.S.T. traceable certificate of compliance available. Dimensions: 2½" x 2" x ¼" Weight: 1.2 oz.

Review: It might actually be resistant - This stopwatch probably uses the same microchip that most of the others use, as its functions seem to be identical. In other words, some functions like the alarm are so obscure that they are likely seldom used (I haven't figured out how to shut off the hourly beep that I somehow turned on). But the main functions are what you'd want. The display is large enough to be visible without readers, and the push buttons have a nice, firm, positive feel. Not bad. The case is screwed together and has a serpentine rubber gasket. What about the push buttons, you might ask, wouldn't they leak? They appear to have tiny, little O-rings around them. So the whole thing might actually be water resistant. Improvements? The case is a little small for me, and I'd like to see more colors available, so when you have several around your neck it would be easier to find the one you need. I'd give it 4.5 stars if I could, but 5 is close enough. And it arrived surprisingly fast.
Review: Really bad - Came with a dead battery-company reimbursed me to order a new one. This thing is maddeningly frustrating in terms of operations. There seems to be no rhyme nor reason to the button configuration---and somehow now every morning at 3:24 the internal beeping alarm goes off for a minute---very pleased by that. This is now in a trash bin---I ordered an analog stop watch---amazing how it does exactly what it is supposed to...and I can now sleep peacefully at 3:24 each morning. Avoid this thing!

## Features

- HIGH-PRECISION TIMING: Counts up to 24 hours with 1/100th-second precision for the first 30 minutes and 1-second resolution afterward, making it ideal for sports, fitness, and laboratory timing needs.
- SPLIT INTERVAL FUNCTION: Easily track and record lap or split times for enhanced performance analysis. Perfect for runners, swimmers, and other competitive athletes.
- MULTIFUNCTIONAL DESIGN: Includes a 12/24-hour alarm clock, calendar, and hourly chime option, providing versatile functionality for both daily use and specialized timing applications.
- WATER-RESISTANT: Built to withstand moisture, making it suitable for outdoor activities, aquatic sports, and challenging environments. Compact and lightweight for easy portability.
- NIST TRACEABLE CERTIFICATION: Optional NIST compliance ensures accuracy and reliability for professional use in labs, testing, and regulated industries.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001426KUC |
| Best Sellers Rank | #419,037 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #176 in Stopwatches #2,932 in Electronics & Gadgets |
| Brand Name | Sper Scientific |
| Color | Yellow |
| Customer Reviews | 3.0 3.0 out of 5 stars (8) |
| Global Trade Identification Number | 00816366021500 |
| Item Dimensions D x W x H | 2.5"D x 2"W x 1.25"H |
| Item Weight | 1.2 ounces |
| Manufacturer | Sper Scientific |
| Manufacturer Part Number | 810012 |
| Manufacturer Warranty Description | 5 year. |
| Material Type | Plastic |
| Model Number | 810012 |
| Number of settings | 5 |
| Screen Size | 2 Inches |
| UPC | 816366021500 696735699734 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Sper Scientific
- **Color:** Yellow
- **Item Weight:** 1.2 ounces
- **Material:** Plastic
- **Product Dimensions:** 2.5"D x 2"W x 1.25"H

## Images

![- Sper Scientific Water Resistant Stopwatch 810012 - Digital Timer with Split Interval Function, 12/24 Hour Alarm Clock & Calendar for Sports, Labs, Fitness, and More - Image 1](https://m.media-amazon.com/images/I/61bvwEeDeSL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It might actually be resistant
*by T***K on December 24, 2011*

This stopwatch probably uses the same microchip that most of the others use, as its functions seem to be identical. In other words, some functions like the alarm are so obscure that they are likely seldom used (I haven't figured out how to shut off the hourly beep that I somehow turned on). But the main functions are what you'd want. The display is large enough to be visible without readers, and the push buttons have a nice, firm, positive feel. Not bad. The case is screwed together and has a serpentine rubber gasket. What about the push buttons, you might ask, wouldn't they leak? They appear to have tiny, little O-rings around them. So the whole thing might actually be water resistant. Improvements? The case is a little small for me, and I'd like to see more colors available, so when you have several around your neck it would be easier to find the one you need. I'd give it 4.5 stars if I could, but 5 is close enough. And it arrived surprisingly fast.

### ⭐ Really bad
*by P***F on May 29, 2016*

Came with a dead battery-company reimbursed me to order a new one. This thing is maddeningly frustrating in terms of operations. There seems to be no rhyme nor reason to the button configuration---and somehow now every morning at 3:24 the internal beeping alarm goes off for a minute---very pleased by that. This is now in a trash bin---I ordered an analog stop watch---amazing how it does exactly what it is supposed to...and I can now sleep peacefully at 3:24 each morning. Avoid this thing!

### ⭐⭐⭐⭐ Four Stars
*by D***H on August 14, 2014*

It works fine but not easy to figure out. It is a good buy for the money.

## Frequently Bought Together

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-05-03*