Large LCD screen shows Celsius values for clear visibility and remains legible from various viewing angles. The device provides an air quality alert by tracking home humidity, indicating dry, comfortable, or humid states through a simple comfort guide. Updates every 10 seconds with high accuracy: temperature within ±0.1 C and humidity within ±5% RH for dependable results. Runs on a coin battery; displays humidity and temperature indicators; single-button control keeps operation straightforward with our humidity sensor. Use scenarios: - Nursery or children's room to maintain optimal sleep conditions for comfort and health. - Living room or home office to sustain a comfortable environment during work or relaxation. - Greenhouse, kitchen, or laundry area to monitor humidity levels affecting plants, appliances, or condensation.