... Wind chill indication Data hold function. High precision pressure sensor. Quick response, external thermistor. Auto/manual power off. Temperature display in ... than or equal to 90% RH Storage Temperature: -40°C ~ +60°C, -40°F ~140°F Current Consumption: About 3mA Weight:115 ... User Manual best quality,cheapest price, light weight,small moderate DT-82 Wind Speed Measurement