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Extech Humidity/Thermometer/Heat Index Stopwatch

Extech  |   Mfr# HW30  |   Item# DO-94410-70

$45.99 USD/EACH
$39.09 USD/EACH

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  • User settable Heat Index alarm
  • Stopwatch/chronograph mode with 1/100 second resolution
  • Fastest/Slowest/Average Lap Recall
  • 99 lap counter with 30 lap/split memeory
  • 10 hour countdown timer with audible beeper warning for the last 5 seconds
  • Programmable alarm
  • Calendar mode displays day, month and date
  • 12 or 24 hour clock operation
  • 39" lanyard and battery included
Timing capacity 9 hours, 59 minutes, 59 seconds
Product Type Stopwatches
Display LCD,0.75 in H
Count direction Up
Clock 12 or 24 hour
Alarm Yes
Resolution 0.01 seconds
Power 3 V button cell battery (included)
Timing modes Single-event, lap, cumulative split
Temp range 14 to 122°F (-10 to 50°C)
Model HW30
Qty/ea 1
Dimensions 2.6 in W x 3.1 in H x 0.8 in D (66 x 79 x 21mm)
Manufacturer number HW30
Brand Extech
Accuracy ±5 seconds/day


at $173.00 USD/EACH
Usually ships in 25 days.

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Product Reviews


by PowerReviews
Extech HW30 Humidity/Thermometer/Heat Index Stopwatch

(based on 1 review)

Reviewed by 1 customer

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very good device

By no nick name

from Bluefield, WV

Verified Reviewer

Comments about Extech HW30 Humidity/Thermometer/Heat Index Stopwatch:

The men that uses this device works out in the hot weather wearing rubber gloves and sleeves when working on energized conductors. so it helps to keep an watch on the heat. so not want the employees to get over heated.

  • Was this a gift?:
  • No

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