Realtime temperature and humidity monitoring to help create a comfortable and healthy home environment. Simple, practical and refined in design. Calibratable data during use: you can set and calibrate standard temperature and humidity values to match your environment for improved accuracy. Reliable DC5V power supply: ensures stable operation and addresses test inaccuracy caused by low battery power in later stages of use. Colorbased alarm system: if readings exceed the preset upper or lower limits, the receiver emits a color alarm for quick, intuitive alerts. Practical and versatile: suitable for homes and small offices where environmental conditions matter for comfort, health, and equipment. Use scenarios: 1) Family living spaces and nurseries: maintain safe, comfortable temperature and humidity for family members and infants, with immediate alerts if conditions drift. 2) Home office or study areas: monitor ambient conditions to sustain comfort and focus, with reliable power given by DC5V supply. 3) Small green spaces or plant corners: keep humidity and temperature within ranges to support plant health, with easy calibration for different species. Key attributes: Function: realtime sensing of temperature and humidity, calibration capability, colorbased alerts. Compatibility: designed for DC5V power supply to ensure stable performance. Performance: straightforward setup, reliable monitoring, and immediate visual alarms when limits are exceeded.