"MONITORS KEY ENVIRONMENTAL FACTORS FOR HEAT STRESS USING WET BULB GLOBE TEMPERATURE MEASUREMENTS; DISPLAYS TO 0.1 DEGREE; OPERATING TEMPERATURE RANGE: SENSOR ASSEMBLY 23 TO 212 DEG F, ELECTRONICS 23 TO 140 DEG F; ACCURACY: +/- 0.9 DEG F BETWEEN 32 AND 212 DEG F; INCLUDES: 9V ALKALINE BATTERY, REPLACEMENT WICKS, WATER BOTTLE, VERIFICATION MODULE, AND STORAGE CASE"