Extech HW30 Heatwatch Humidity/Temperature Stopwatch

• User adjustable Heat Index alarm
• Stopwatch/chronograph mode with 1/100 second resolution
• Fastest/Slowest/Average Lap recall
• 99 lap counter with 30 lap/split memory
• 10 hour countdown timer with audible beeper warning for the last 5 seconds
• Programmable alarm
• Calendar mode displays day, month, and date

This HW30 multi-function stopwatch displays a digital up/down timer, temperature, humidity and heat index. 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.

• Timing Capacity: 9 hrs, 59 mins, and 59 secs
• Accuracy: ±5 seconds/day
• Alarm: Yes
• Countdown Timer: Yes
• Lap Memory: 30 laps
• Heat Index:: 70 to 122°F (22 to 50°C)
• Temperature: 14 to 122°F (-10 to 50°C)
• Humidity: 1 to 99%
• Dimensions: 3.1×2.6×0.8 inches (79x66x21 mm)
• Weight: 3 oz (85 g)