Features: �� High accuracy and sensitivity. �� Adjustable LCD backlight for clearly showing data. �� Based on micro-processor design for dual display temperature/ humidity. �� Automatically power off and data hold. �� Powered by 9V battery ( Not included). Specifications: �� Type: HT-350 �� Color: White + Black �� Temperature range: -30~+100�� (-22~+199�H) �� Humidity range: 0-100%RH �� Dew point temperature: -30~+100�� (-22~+199�H) �� Wet bulb temperature range: 0~+80�� (32~+176�H) �� Humidity accuracy: ��2%RH (25��， 20%_80%RH); ��2.5%RH (other ranges) �� Air temperature accuracy: ��0.5��/��0.9�H (25��); ��0.8��/��1.5�H (other ranges) �� Resolution:0.01%RH， 0.01�� / 0.01�H �� Respond time: 10s with 90%RH 25�� �� Operating temperature: 0~40��; ��80%RH �� Storage temperature: -10~+60��; ��80%RH �� Battery type: NEDA 1604， IEC 6F22 9V �� Production dimension: 228*55*33mm �� Product weight: 200g Package includes: 1X HT-350 Mini Temperature and Humidity Meter 1X User Manual