---
product_id: 277197602
title: "EXTECH Instruments HW30 HeatWatch Humidity and Temperature Stopwatch"
brand: "extech"
price: "AR$259926"
currency: ARS
in_stock: true
category: "Extech"
url: https://www.desertcart.com.ar/products/277197602-extech-instruments-hw30-heatwatch-humidity-and-temperature-stopwatch
store_origin: AR
region: Argentina
---

# Humidity & heat index display 1/100 sec stopwatch precision Temp range 14°F to 122°F EXTECH Instruments HW30 HeatWatch Humidity and Temperature Stopwatch

**Brand:** extech
**Price:** AR$259926
**Availability:** ✅ In Stock

## Summary

> ⏳ Stay ahead of time and climate—because precision waits for no one!

## Quick Answers

- **What is this?** EXTECH Instruments HW30 HeatWatch Humidity and Temperature Stopwatch by extech
- **How much does it cost?** AR$259926 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/277197602-extech-instruments-hw30-heatwatch-humidity-and-temperature-stopwatch)

## 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

- • **Memory Recall Power:** Review your fastest, slowest, and average laps with a 30-lap memory recall—perfect for data-driven decision making.
- • **Compact & Ready-to-Go:** Lightweight design with included neck strap and long-lasting CR2032 battery ensures you’re always prepared on the move.
- • **Versatile Timekeeping:** Switch effortlessly between 12/24 hour clock modes with calendar and alarm functions to keep your schedule sharp.
- • **Climate-Savvy Monitoring:** Instantly access temperature, humidity, and heat index to stay ahead in any environment.
- • **Precision Timing Mastery:** Track every millisecond with 1/100 second stopwatch accuracy and 99-lap memory for unbeatable performance insights.

## Overview

The EXTECH HW30 HeatWatch is a compact, professional-grade stopwatch combining ultra-precise 1/100 second timing with real-time temperature, humidity, and heat index monitoring. Featuring a 99-lap counter, memory recall, calendar, and alarm functions, it’s engineered for managers and pros who demand accuracy and environmental awareness in one sleek, portable device.

## Description

Digital Stopwatch, Timing Range Count up to 9 hr., 59 min., 59 sec., Accuracy +/-5 Seconds per Day, Display 2-line LCD, Elapsed Time Yes, Split Time Yes, Calendar Display Alarm clock, hourly chime, calendar, 12/24 Hour Clock Operation Yes, Countdown Timer Yes, Lap Counter 99, Memory Recall 30 lap/split memory, Features Temperature, Humidity, Heat Index, Temp. Range 14 to 122 F, Battery Type CR2032, Includes Battery, 39" Neck Strap, Instructions. California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

## Features

- Displays temperature, humidity and heat index
- Up/Down stopwatch function with 1/100 second resolution
- Stopwatch has 99 lap counter with Fastest/Slowest/Average lap recall
- 12 or 24 hour clock function
- Calendar mode displays day, month and date

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00023RYPO |
| Battery Type | CR2032 |
| Best Sellers Rank | #181,524 in Sporting Goods ( See Top 100 in Sporting Goods ) #291 in Stopwatches |
| Brand Name | Extech |
| Color | Green |
| Customer Reviews | 4.5 4.5 out of 5 stars (88) |
| Global Trade Identification Number | 00793950365304 |
| Item Dimensions D x W x H | 6.6D x 7.9W x 2H centimeters |
| Item Type Name | Stopwatch |
| Item Weight | 0.02 Kilograms |
| Manufacturer | Extech Instruments |
| Manufacturer Part Number | HW30 |
| Manufacturer Warranty Description | 2 years. |
| Material Type | Plastic |
| Model Number | HW30 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of settings | 5 |
| Screen Size | 5.08 |
| UPC | 885520990709 885432331096 793950365304 745332081425 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Extech
- **Colour:** Green
- **Item weight:** 0.02 Kilograms
- **Material:** Plastic
- **Product dimensions:** 6.6D x 7.9W x 2H centimeters

## Images

![EXTECH Instruments HW30 HeatWatch Humidity and Temperature Stopwatch - Image 1](https://m.media-amazon.com/images/I/61Fdg-VY5bL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this watch make any noise or sound when you press the buttons?**
A: No, no noise at all

**Q: Does this come with a certificate?**
A: Thank you so much for your interest in our products. The 365510 is able to receive a Certificate of Compliance by us after the purchase. Also, if you pay the additional difference, it can receive a traceable NIST calibration certificate. Be sure to check the part number for it 365510-NIST

**Q: how quickly do the temperature and humidity readings get updated?  in a minute, or in ten? and its real size?**
A: The temperature updates within seconds while the humidity may take a few seconds more to stabilize and prodcue the display.

**Q: how tall are the numbers?**
A: Mine, which is a model 365510 has numbers just a shade under 3/8", probably closer to 5/16". I find them adequate for the job at hand.

## Frequently Bought Together

- EXTECH Instruments HW30 HeatWatch Humidity and Temperature Stopwatch
- GEARWRENCH 20 Piece Ratcheting Combination Wrench | SAE & Metric | 35720A-02
- Extech 480400 Phase Tester

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-10-15*