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Body size: Approx. width 58 x height 122 x depth 25 mm Body weight: Approx. 70 g [Specifications] Display range: Temperature: -9.9℃ to 60.0℃ Humidity: 0.1% to 99.9% RH WBGT: 0.0℃ to 50℃ Accuracy Temperature: 20.0°C to 40.0°C: ±0.6°C 19.9°C or less and 40.1°C or more: ±1.0°C Humidity: 30% to 90% RH: ±5% 29.9% or less and 90.1% RH or more: ±10% Power supply: 2 x AAA alkaline batteries (sold separately) Battery life: Approximately 1 year * Battery life may be shortened depending on the usage environment, such as when the alarm continues to sound. * The usable time varies depending on the battery manufacturer and type. * The usable time of 1 year is an estimate when using new batteries. Accessories: Carabiner, neck strap, screwdriver, instruction manual 6 months from the date of purchase Accurately measures temperature, humidity and WBGT index, and warns of danger levels with sound and display. Visualize the risk of heat stroke in factories, schools, sports facilities, outdoor activities, etc.