The flexible tip ensures safety during use. Ambient temperature: 5°C ~ 40°C (41°F ~ 104°F), Relative humidity: 15% ~ 95% RH, Atmospheric pressure: 700 hPa ~ 1060 hPa. Storage and transportation conditions: -20°C ~ 55°C (-4°F ~ 131°F), Relative humidity: 15% ~ 95% RH, Atmospheric pressure: 700 hPa ~ 1060 hPa.