Small Black Sphere Heat Stress Index Meter / Model Number M4272HS-1403K
Visualizing the true heat that cannot be measured by a thermometer.
The Wet Bulb Globe Temperature (WBGT) is an index used to assess the risk of heat-related illnesses.
basic information
■Specifications Model Number: M4272HS-1403K Standards: JIS B 7922: 2023 compliant Accuracy Class: Class 2 WBGT Measurement Range: 0.0 to 50.0℃, in 0.1℃ increments Accuracy: 15.0 to 40.0℃ ±2.0℃ 0.0 to 14.9 / 40.1 to 50.0: ±3℃ Temperature (Air Temperature) Measurement Range: -9.9℃ to 60.0℃, in 0.1℃ increments Accuracy: 20.0 to 50.0℃ ±0.6℃ -9.9 to 19.9 / 50.1 to 60.0℃ ±1.0℃ Humidity (Relative Humidity) Measurement Range: 0.1 to 99.9%, in 0.1% increments Accuracy: 30.0 to 90.0% ±5.0% 10.0 to 29.9 / 90.1 to 99.9% ±10.0% Storage Environment Temperature: -10.0 to 60.0℃ Humidity: 0.0 to 100.0% (without condensation) Wind Speed: 0.3 to 3 m/s Operating Environment Temperature: 5.0 to 60.0℃ Humidity: 20.0 to 80.0% (without condensation) Warning Alarm: 3 levels of volume - High / Low / None Power Supply: CR2032 coin-type lithium battery x 1, DC3V Battery Life: Approximately 8 months (when used for 4 hours a day) Dimensions: Approximately 60mm (W) x 112mm (H) x 33mm (D) Weight: Approximately 79g (including battery)
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Applications/Examples of results
■What is the black globe method... The presence of a black globe allows for the measurement of radiant heat from sunlight and ground reflection. It quantifies the "heat that the body actually feels." This enables the assessment of heatstroke risk, both outdoors and indoors, and aids in safety management during exercise and work. *Radiant heat refers to direct sunlight and reflected heat from the ground. *The Ministry of the Environment also recommends "black globe heatstroke index meters."
