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Product Focus: Reed SW700 Heat Stress Stopwatch

Product Focus: Reed SW700 Heat Stress Stopwatch

In this article, we will be covering the SW700 heat stress stopwatch manufactured by Reed.

For more information on heat stress meters and how they can be used, please read our blog post.

About the manufacturer:

Reed have been a leading Canadian supplier of high-quality measuring instruments and testing equipment since 2004. Whilst the company aims to produce products that cater to a wide variety of trade professionals including electricians, architects, carpenters and builders; many of Reed's products are used by professionals and hobbyists alike. Examples of products from Reed include: Thermometers, anemometers, clamp meters and sound measurement devices.


Reed's SW700 is a sleek, multi-functional device that measures temperature, humidity and calculates heat index and dew point. This premium stopwatch is solar powered, water-resistant (IPX4), features a 10-hour countdown timer, and built-in calendar that displays day, month and date. SW700 models combine air temperature and relative humidity measurement in an attempt to determine the human-perceived equivalent temperature.

  • Fitness coaches – Fitness coaches may use the SW700 to monitor heat levels of athletes during training.
  • Athletes – Athletes undergo rigorous training exercises that cause fluctuations in heat and body temperature. The SW700 can monitor the wearer's temperature to prevent heat sickness.
  • Gym users - Whilst designed for professional athletes, the SW700 stopwatch can be used recreationally by gym goers to prevent heat sickness caused by over-exercising.


  • Measures temperature and humidity, calculates heat index and dew point.
  • Stopwatch/chronograph mode with 1/100 second resolution.
  • Calendar mode displays day, month and date.
  • 99 lap counter with 30.
  • lap/split memory.
  • Fastest/Slowest/Average lap recall.
  • 10 hours countdown timer with audible beeper warning for the last 5 seconds.
  • Programmable alarm.
  • 12 or 24 hour clock operation.
  • 48" nylon lanyard.
  • Backlit LCD display.
  • Silent operation option.
  • Battery and solar powered.


  • Dimensions: 2.7 x 3.6 x 1.0" (68 x 92 x 23 mm).
  • Accuracy: ±3 seconds/day.
  • Resolution: 0.1°F/°C.
  • Temperature range: Temperature: 23 to 122°F (-5 to 50°C) Heat Index: 70 to 122°F (22 to 50°C).
  • Approvals: CE, IPX4.
  • Battery: CR2032 battery or Solar Panel.

Why buy this stopwatch?

  • The SW700 is solar powered and does not require battery option.
  • Constructed from durable materials for increased shelf life over other stopwatch models.
  • Highly accurate and able to calculate lap recall, lap split and lap counts.
  • Built-in heat index and monitoring for on-the-spot heat stress monitoring.
  • IPX4 waterproof and CE approvals.


This digital stopwatch is competitively priced and comes with a wide variety of features that make it perfect for use by athletes undergoing rigorous training.

Looking to purchase this product? Please visit the Reed SW700 heat stress stopwatch page.

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