Features: - Compact Body: Humanity Design, small card type, lighter thinner, easy to carry. - High-precision Temperature and Humidity Sensor: High sensitivity high precision high response speed. - VA Color Screen: The high-definition LCD display enables you to read values clearly even in the dark environment. - ℃/℉ Switchable: Temperature units can be selected at will. - Low Battery Prompt: Capable of reminding you to change batteries in time in case turning off when using due to lack of electricity. - Automatic Shutdown: No operation within 15 minutes. - Diversified Functions: Humidity measurement, environment temperature measurement, wet bulb temperature measurement, dew point temperature measurement, maximum minimum measurement, data retention, over-range prompt.