Large LCD screen with backlight: Size 3.6*3.4*0.94 inches, upgraded hygrometer thermometer with a 3.7-inch LCD screen for easy reading from any angle and distance. Activate the white backlight with a touch for easy viewing in dark conditions (15-second auto-off). Max & Min Records: The digital thermometer displays maximum and minimum humidity and temperature records over the past 24 hours, allowing you to proactively adjust your thermostat or humidifier. (Note: Long press the / button to reset MAX and MIN data.) Accurate and Fast Updates: Indoor temperature updates every 10 seconds, providing the most accurate readings with sensitive sensors. Temperature range: -9.9~60C, accuracy 1; humidity range: 0%~95%RH, accuracy 5%RH. Suitable for indoor homes, bedrooms, nurseries, kitchens, greenhouses, guitar rooms, offices, and wine cellars. Comfort Level Indicator: The room thermometer features 3 levels of icons: wet/comfort/dry, displaying different temperature and humidity levels based on air conditions, allowing you to easily monitor climate control and room temperature needs.