Features 1、Wind speed unit conversion. 2、Wind speed and wind measurement. 3、Data retention function, low power indication. 4、Data retention with maximum, minimum, and average values. 5、High and low wind speed alarm function, automatic or manual shutdown function. Specification Features: Wind speed unit conversion. Wind speed and wind measurement. Data retention function, low power indication. Data retention with maximum, minimum, and average values. High and low wind speed alarm function, automatic or manual shutdown function. Specifications: Condition:Brand New Brand: SMART SENSOR Model: ST9606 Wind speed range m/s(Meter /second) 0.3-30 Km/h(Kilometer/hour)| 1.08~108 mph(Mile/hour) 0.67-67 knots(Nautical/hour) 0.58-58 Wind speed accuracy +/-5% rdg +/_0.1 Wind speed resolution 0.1m/s Temperature range -10℃-45℃/14F~113F Temperature resolution 0.1C/0.1F Power supply 1.5V AAA battery X3(Not included) Operation environment 0C~50℃:≤80% RH Storage environment -10℃~50℃:0%~90% RH Package List: 1*Wind Speed Meter 1*Instruction Manual Package List 1*Wind Speed Meter 1*Instruction Manual