• Large display continually monitors temperature, RH & all heat stress indicators:
  • Aire Temperature (TA)
  • RH
  • Heat Index
  • Dew Point
  • Wet Bulb
• Recall min/max temperature recall with visual alarms for user selectable hi/lo temperature 
• Visual alarms for user selectable RH thresholds (769-682-02 only)
• Datalogging Heat Stress Monitor (69-682-04) adds an audible temperature alarm, and records up to 32,000 data points that can be downloaded using the USB cable and software that come with the unit. 

Specifications:

• Dimensions: 4½" × 4¼" × 1" (108 × 115 × 25 mm)
• Weight: 5 oz (141 g)
• Air Temperature: -20 to 50°C
• Resolution: 0.1°C / F
• Accuracy: ±0.6°C / ±1.2°F
• RH Range: 0.0 to 99.9%
• RH Resolution: 0.1%
• RH Accuracy: ±3% fs @25°C
• Includes 4 AAA batteries and stand for desk-top or wall mount
• AC Adapter included with Datalogger 769-682-04

Heat stress results from a combination of many environmental factors – air temperature and humidity along with radiant heat from the sun and surfaces, balanced by the cooling effect of breezes or air flow. OSHA is campaigning to prevent heat illness in workers and reports that every year thousands of workers become sick working in the heat, and some even die. Accurate measurements of heat stress conditions is a key component of a heat illness prevention plan. To prevent injury it is a good idea to have heat stress monitors in place. Heat stress monitors determine the level of heat stress as a result of a combination external heat exposure from the environment. When the heat stress index becomes too high, the monitor will register the heat level as dangerous.