Extendable separate design - LCD rear light - High sensitivity sensor - Wind speed and temperature measurement - Optional wind speed and temperature measurement units Extendable separate design. - LCD rear light. - High sensitivity sensor. - Wind speed and temperature measurement. - Optional wind speed and temperature measurement units. - Data hold function - Maximum / minimum / average / current wind speed measurement. - Automatic shutdown. - Industrial application: steel, fossilization, energy generation, meteorological detection, energy saving, sea fishing, fan construction and other industries. - Other applications: sailing competition, rowing competition, field shooting competition, etc. Specifications: Material: ABS Power supply: 1 x 6F22 9V battery (not included) Wind speed unit selection: m/s, ft/min, knots, km/h, mph Wind speed measuring range: 0-45m/s Wind speed measurement accuracy: 3% 0.1 dgt Wind temperature measurement: 0-45 (32-113) Temperature measurement accuracy: 2C. Humidity: 80% RH Operating temperature: Main unit: 0-50 Vane: 0-60 Storage humidity: 0-90% RH Storage temperature: Main unit: 0-50 Vane: 0-60 Backlight display: yes / Conversion: Yes Average measurement: Yes Max/Minimum Measurement: Yes Product size: Main unit: 15.8 x 6.5 x 3.2 cm / 6.22 x 2.56 x 1.26 inches Vane: 24 x 7.3 x 3 cm / 9.45 x 2.87 x 1.18 inches Product Weight: 315g / 11.11oz Package size: 29.5 x 19.5 x 7 cm / 11.61 x 7.68 x 2.76 inches Package weight: 900g / 31.75oz