This advanced measurement instrument is engineered to high standards for reliable monitoring of wind speed and direction, temperature, and humidity. It records and displays maximum and minimum data, along with the time of recorded measurements. A customizable weather alarm can be set to any value, with an alarm duration of 2 minutes. Wind speed and direction are clearly displayed, including average wind speed and gusts. Wind speed units can be selected as m/s, km/h, mph, or knots. Wind speed range: 0 to 50 m/s. Wind direction range: E, S, W, N, SE, NE, SW, NW. Outdoor temperature range: - With alkaline batteries: -4°F to 140°F (-20°C to 60°C) - With lithium batteries: -40°F to 140°F (-40°C to 60°C) Temperature resolution: 1°F/1°C Temperature accuracy: ±2°F/1°C Humidity range: 20% to 90% Humidity accuracy: ±5% Receiver: 2 AAA 1.5V alkaline batteries (not included) Wind gauge remote sensor: 2 AA 1.5V alkaline or lithium batteries (not included) Battery life: Approximately 12 months Time display: 12-hour or 24-hour format Time zone setting: UTC -12 to +12 Daylight saving time: Automatically adjusted based on time zone Date format options: YYYY-MM-DD, MM-DD-YYYY, DD-MM-YYYY Wireless frequency: 433 MHz Transmission range: Up to 328 feet (100 meters) in open area Press any key to exit RF reception Indoor and outdoor relative humidity (%RH) display Humidity display range: 20% to 99% Humidity resolution: 5% Displays include wind chill temperature and dew point temperature, with selectable units in °F or °C. Material: Plastic Color: White Package contents: 1 x Professional Wireless Weather Station 1 x Receiver Note: Light reflection and screen settings may cause slight color variations between the product image and actual item. Measurement error tolerance: ±1-3 cm.