LCD Digital Portable Spot Wind Speed Meter Gauge Anemometer Measures and NTC Temperature Package Content:1 x Mini Digital Thermometer & Anemometer; 1 x Neck Strap/Lanyard; 1 x CR2032 3V Button Battery; 1 x Instruction Manual. Storage Temperature: -40~60C, -40~140F. Operating Temperature: -10~45C (14~113F). Operating Humidity: less than or equal to 90%RH. Thermometer: NTC Thermometer.