1、1 2、2 3、3 <br> Features:. <br> WBGT (wet-bulb globe temperature) became widespread for the use in workplaces and sports situation. <br> Using to control and monitor of physical activity in hot environment to limit the danger of heat related injuries. <br> Adjustable WBGT alarm setting, if the WBGT value over the alarm threshold, the buzzer will sound along with the flashing Display. <br> 3 ways to use, wear in your arm or mount it on the tripod, walls. <br> 4 Dangerous Level indicator display: Caution / Vigilance / Strict / Danger. <br> Specifications: <br> Color: black&white <br> Temp. range: 0-50℃/32-122℉ <br> Temp. resolution: 0.1℃/0.1℉ <br> Black Ball Temp. range: 0-80℃/32-176℉ <br> Black Ball Temp. resolution: 0.1℃/0.1℉ <br> Relative humidity range: <br> Relative humidity resolution: 0.1 RH <br> Heat Stroke Index(WBGT) range: 0-50℃/32-122℉ <br> Heat Stroke Index(WBGT) resolution: 0.1℃/0.1℉ <br> WBGT Temp.: IN(indoor), OUT(outdoor) <br> Operating condition: 0~50°C/32-122℉, 10~90% RH <br> Storage condition: -10~55°C/14-131℉, 10~90% RH <br> Powered by: 2 * 1.5V AAA(not included) <br> Item size: about 117 * 59 * 45mm <br> Packing List: <br> 1 * WBGT Meter <br> 1 * Arm Strap <br> 1 * English Instruction Manual <br> 1 * WBGT Meter <br> 1 * Arm Strap <br> 1 * English Instruction Manual