This state-of-the-art measuring instrument is engineered and designed to meet the highest quality standards, ensuring uncompromising performance. It provides accurate measurements of wind speed and direction, wind chill, temperature, and humidity. All maximum/minimum data can be recorded and displayed, along with the time of recording. The weather alarm can be set independently with customizable values, and the alarm signal lasts for 2 minutes. Displays current wind speed and direction, as well as average wind speed and gusts. Units can be set to m/s, km/h, knots, or a custom user setting. Wind speed range: 0 to 50 m/s; Wind direction range: E, S, W, N, SE, NE, SW, NW. Specification: Outdoor temperature range: Alkaline batteries: -4F to 140F (-20C to 60C) Lithium batteries: -40F to 140F (-40C to 60C); Resolution (for both indoor/outdoor temperature): 2F/1C Temperature accuracy: 2F/1C Humidity range: 20% to 90% Humidity accuracy: 5% Receiver: Alkaline battery: 2 AAA 1.5V Anemometer Remote Sensor: Alkaline battery: 2 AA 1.5V or AA lithium battery (not included) Battery life: 12 months. Perpetual calendar: Time display format can be set between 12-hour or 24-hour format. Time zone can be set from -12 to +12 (user setting). Daylight saving time is automatically adjusted (DST adjusted based on different time zones). Date display format can be set as: YYYY-MM-DD, MM-DD-YYYY, DD-MM-YYYY (user setting). Wireless 433 MHz reception with a range of 328 feet in open field. During RF reception, press any key to exit. Indoor/outdoor relative humidity (RH%) display. Display range: 20% to 99%. Resolution: 5%. Wind chill temperature display. Display units: F/C (user setting). Dew point temperature display. Display units: F/C (user setting). Material: Plastic Color: White Package contents: 1 x Professional Wireless Weather Station 1 x Receiver