1. Temperature, humidity, atmospheric pressure: This product is used to measure temperature, humidity, atmospheric pressure, and other environmental parameters, accurately predicting future weather changes based on variations in ambient temperature, humidity, and atmospheric pressure. It is a fully functional home weather meter (barometer) that operates without batteries. 2. Suitable for indoor and outdoor use: You can install this weather station anywhere inside or outside your home. Since it's wireless, no nearby power outlet is required. Use it in your home, garden, or even your RV. The barometer performs well up to 3 feet above sea level, making it suitable for various geographical locations. 3. Beautiful decoration: This elegant, traditional piece is for any sophisticated office, library, or restaurant. The weather station measures temperature (°F), air pressure (mmHg and inHg), and humidity (%). 4. Easy to set up and calibrate: Setting up this weather station is simple. Just use a hammer or nail gun to drive nails into the wall and hang the device. The weather station features a black plastic cover with a refined brass display and glass lens. Calibrating the barometer is effortless—just follow the included instructions.