This wireless measurement instrument records wind speed, direction, temperature, and humidity. It displays maximum and minimum recorded data with timestamps. A weather alarm can be set for any parameter, with a signal duration of 2 minutes. It displays current, average, and gust wind speeds. Units are configurable for wind speed (m/s, km/h, mph, knots) and temperature (F/C). Wind speed range: 0 to 50 m/s. Wind direction displays as E, S, W, N, SE, NE, SW, NW. Specification: Outdoor Temperature range: With Alkaline batteries: -4F to 140F (-20C to 60C) With Lithium batteries: -40F to 140F (-40C to 60C) Resolution (indoor/outdoor temperature): 2F/1C Temperature accuracy: 2F/1C Humidity range: 20% to 90% Humidity accuracy: 5% Receiver power: 2 AAA 1.5V Alkaline batteries Remote Sensor power: 2 AA 1.5V Alkaline or AA lithium batteries (not included) Battery life: approximately 12 months Calendar features include configurable 12/24 hour time, time zone setting (-12 to +12), automatic daylight saving time adjustment, and selectable date formats (YYYY-MM-DD, MM-DD-YYYY, DD-MM-YYYY). Wireless 433 MHZ transmission with a range of up to 328 ft in open field. Displays indoor/outdoor relative humidity (RH %) from 20% to 99% with 5% resolution. Displays wind temperature and dew point temperature in configurable units (F/C). Material: Plastic Color: White Package Contents: 1 x Wireless Sensor 1 x Receiver