Sper Scientific* Heat Stress Monitor and Datalogging Heat Stress Monitor

These heat stress monitors have a large display that continually monitors temperature, Relative Humidity (RH) & all heat stress indicators: Air Temperature, RH, Heat Index, Dew Point, Wet Bulb. Sper Scientific Heat Stress Monitors recall min./max. temperature and provides visual alarms for user selectable hi/lo temperature and RH thresholds (RH on Cat. 350-98398 only). Datalogging Heat Stress Monitor (Cat. No. 350-98401) 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. Both units include 4 AAA batteries and stand for a desktop or wall mount. An AC Adaptor (Cat. No. 350-98746) is included with Cat. No. 350-98401, and is available as an optional accessory for Cat. No. 350-98398.

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.

Specifications:
• Air temperature range: -20 to 50°C (-4 to 121°F)
• Air temperature resolution: 0.1deg;C/F
• Air temperature accuracy: +/-0.6°C (+/-1.2°F)
• Relative humidity range: 0 to 99.9%
• Relative humidity resolution: 0.1%
• Relative humidity accuracy: +/-.& full scale at 25°C
• Dimensions: 4¹/₂ x 4¹/₄ x 1 in. (108 x 115 x 25 mm)
• Weight: 5 oz (141 g)
• 5 year warranty, CE, RoHS
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Air Temperature Range: -20 to 50 DEG C (-4 to 121 DEG F)
Air Temperature Resolution: 0.1 DEG C & DEG F
Air Temperature Accuracy: +/-0.6 DEG C (+/-1.2 DEG F)
Relative Humidity Range: 0.0 to 99.9%
Relative Humidity Resolution: 0.1% / +/-3% fs @25 DEG C

Air Temperature Range: -20 to 50 DEG C (-4 to 121 DEG F)
Air Temperature Resolution: 0.1 DEG C & DEG F
Air Temperature Accuracy: +/-0.6 DEG C (+/-1.2 DEG F)
Relative Humidity Range: 0.0 to 99.9%
Relative Humidity Resolution: 0.1%
Relative Humidity Accuracy: +/-3% fs @25 DEG C