5.8" Jumbo Backlit Display: Experience superior visibility with our oversized HD LCD screen, 45% larger than standard models. It displays temperature, humidity, comfort levels, and daily max/min records. -touch backlight, with a 15-second auto-off feature, ensures readability in any lighting. Real-Time Monitoring & High Accuracy: Keep track of temperature ranges from -9.9C to 70C (14.2F to 158F) and humidity levels from 10% to 99% with updates every 10 seconds. The display also alerts you with "LLF/F" for extreme temperatures, ensuring you're always informed. Smart Comfort Indicator & Calibration: Our color-coded comfort indicator (DRY/COMFORT/WET) provides instant into air quality. The device comes pre-calibrated for accuracy but allows manual calibration to align with other devices, making it perfect for health-conscious environments. Dual Power & Adjustable Brightness: Choose between USB power, with three brightness levels, or battery operation (not includes 3xAAA batteries) to maintain settings during power outages. Note: For full backlight features, USB power is recommended as the backlight dims in battery mode. Flexible Placement & Ready to Use: Whether placed on a desk with its stand or hung via the rear hook, this thermometer hygrometer is versatile. It comes with a USB-C cable and batteries. Note: Power adapter not included-compatible with any 5V USB charger. Color: White Material: ABS Package Contents: 1*Temperature and hygrometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.