Applicable for home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, factories, and places equipped with air conditioning. This portable hygrometer thermometer measures indoor humidity and temperature in real time, helping to adjust humidifier, dehumidifier, and humidistat settings. Ideal for monitoring living conditions and supporting health by helping prevent colds, dry skin, asthma, and mold. Fast response with readings updated every 10 seconds, featuring 24 sensitive vents for accurate and reliable performance. Wide measurement range: temperature from 0.0°C to 50.0°C, humidity from 10% to 99%. (Please allow for a certain margin of error.) Clear LCD display for easy reading, even from a distance. Humidity measurement accuracy: ±5% Humidity display resolution: 1% RH Temperature measurement range: 0°C to 50°C Temperature measurement accuracy: ±1°C Temperature display resolution: 0.1°C Color: Black Material: ABS Package Contents: 6 x Hygrometer Thermometer Note: Light reflection and differences in display screens may cause slight variations in the color shown in the image compared to the actual product. Allowable measurement error is +/- 1-3 cm.