This state-of-the-art measurement instrument is engineered to high standards for reliable wind speed and direction, temperature, and humidity measurements. It records and displays maximum and minimum data, including the time of recorded values. A weather alarm can be set to trigger at user-defined thresholds, with an alarm duration of 2 minutes. The device displays wind speed and direction, average wind speed, and gusts. Wind speed units are selectable in m/s, km/h, mph, knots, or ft/min. Wind speed range: 0 to 50 m/s. Wind direction range: N, S, E, W, NE, SE, NW, SW. 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 / 0.5°C Temperature accuracy: ±2°F / ±1°C Humidity range: 20% to 90% RH Humidity accuracy: ±5% RH Receiver: Requires 2 AAA 1.5V alkaline batteries Remote wind gauge sensor: Requires 2 AA 1.5V alkaline or lithium batteries (batteries not included) Battery life: Up to 12 months under normal usage Time display: 12-hour or 24-hour format selectable Time zone setting: UTC -12 to +12 Automatic daylight saving time adjustment 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 field Press any key during RF reception to exit Indoor and outdoor relative humidity display: 20% to 99% RH, resolution 5% Wet-bulb temperature display; units in °F or °C (selectable) Dew point temperature display; units in °F or °C (selectable) Material: Plastic Color: White Package includes: 1 x Wireless Weather Station Receiver 1 x Remote Wind Gauge Sensor Only the items listed are included. Note: Lighting and screen settings may cause slight color variations between the product image and actual item. Measurement error allowance: ±1–3 cm.