HeatWatch™ Stopwatch with Heat Index, Humidity, Temperature, and Up/Down Timer

Extech HW30

Model: HW30 Go to Product Support
product image

The HW30 is a multifunction stopwatch with a digital up/down timer, temperature, humidity and heat index functions. The heat index measurement shows how hot it feels when humidity is combined with the actual temperature. Ideal for use in hot weather conditions. Additional features include a 12/24-hour clock, stopwatch, 30 lap/split memory and programmable alarm. HW30 Humidity/Temperature HeatWatch comes with lanyard, battery, and operating instructions.

Product Shipping FREE Shipping
Product Returns Shipping & Returns
Sales Contact Contact Sales
  • Multiple useful features

    Modes include lap counter, fastest/slowest/average lap recall, and 10-hour countdown timer.

  • Monitor heat and humidity

    Displays temperature and humidity and offers user-adjustable heat index alarm.

  • Easy to read

    Large, backlit digital display showing date plus temperature and humidity, timer, alarm, Chrono/split, or Chrono/lap.

Contact Sales

Want more information on this product?

Call (866) 477-3687 to speak with a knowledgeable specialist.

General Specifications
Countdown Timer
Heat Index
22°C to 50°C (70°F to 122°F)
Lap Memory
30 laps
Relative Humidity
1 to 99%
Temperature (Contact)
'-10°C to 50°C (14°F to 122°F)
Timing Capacity
9 hrs, 59 mins, and 59 secs
Timing Capacity Accuracy
±5 seconds/day
Additional Details
79 × 66 × 21 mm (3.1 × 2.6 × 0.8 in)
1 × CR2032 (3 V) battery
2 years
85 g (3 oz)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech HW30 - Model: HW30

Change Selection