1. E-ink screen home hygrometer; data is clearly visible at various brightness levels and viewing angles. 2. Bluetooth-enabled for smartphone app connectivity; compatible with smart home appliances controlled via the app. 3. High-sensitivity, accurate Swiss-made sensor detects subtle changes in temperature and humidity. 4. Three mounting options for flexible placement in any environment. 5. Simple, intuitive display indicating comfort level. Low-power E-ink screen powered by a single CR2032 button battery (up to 1 year of operation). Switchable between Celsius and Fahrenheit display. The E-ink digital temperature and humidity meter provides clear, real-time readings. With smartphone integration, it can automatically record daily temperature and humidity data, helping monitor indoor environmental conditions and support decisions such as adjusting air conditioning or opening windows for ventilation. Color: As Shown Material: Plastic + Metal Package Contents: 1 x MHO-C401 Smart Bluetooth Thermometer Hygrometer Note: Due to lighting conditions and screen variations, the product color in images may differ slightly from the actual item. Measurement tolerance: ±1–3°C.