This meter can measure temperature and humidity,dew point quickly.It is widely used in DIY and HVAC field. ... SPECIFICATIONS:Display: 4 digits LCD DisplayMeasure: , , %RH(relative humidity), td(dew point temperature)Range: -10 +50, +14 +122, 0 +100%RHResolution0.1 ... case and coverBattery: DC1.5V (AAA) x 3pcs Temperature Humidity Dew point meter VA8010