name: thermometer hygrometer barometer three-in -one meteorological station . model no.:THB9392. measurement range:960~1060hPa,-30~50degree centigrade,0~100%Rh. resolution:1hPa,1degree centigrade,2%Rh. accuacy: +/-5hPa,+/-2degree centigrade,+/-5%Rh(40~70%Rh)Unit Size: approx 13 x 41CM. Weight: approx 013KgRemind: many customers do not understand, mistakenly believe that the white pointer is the degree of pressure,In fact, the white pointer is just a contrast pointer,Because the pressure change is very small, for example, the white pointer is manually adjusted to the same position as the black color, so you can tell whether or not the pressure is high or low tomorrowThe white pointer is manual. It does not change itself.Important reminder1The pressure does not change every day, and the pressure changes when the weather changes greatly. 2The weather forecast function is based only on the pressure, and it is different from the actual altitude and terrain, not necessarily correct3If the location is high, the barometric pressure display will always be low and the weather forecast function will not work.Measuring range: pressure 960 ~ 1060hPa (hPa), temperature -30 ~ 50 , humidity 0 ~ 100% Rh; special remind the highland area or mountain friends, be to confirm your atmospheric pressure in our barometer range The Atmospheric pressure below 960hpa or higher than 1060hpa will appear to the most left or right can not measure the situation.Color: silvermaterial: metalCommon plateau pressure reference:Lhasa elevation: 3680m, pressure 649hPa (summer), 358hpa (winter), 488hpa (fall), 566hpa (spring)Hohhot: 1063m, pressure 889hpaGuiyang: 10712m, pressure 887hpaBijie: 15106m, pressure 844hpaXingren: 1378m, pressure 857hpaKunming: 1891m, pressure 808h