*Simultaneously display temperature and humidity *Easy-to-read dual LCD display *Designed with capacitance type humidity sensor to get accurate and quick reading *Maximum / minimum and reset function o o *Temperature unit C/ F selectable *Hold function to freeze current reading *Entire lcd flashes to indicate low battery status *Sleep mode can be disabled *Sensor cap to protect sensor *Packet clip design for easy portable around *Light weight and long battery life *8703 features dew point temperature display *8705 features dew point & wet bulb temperature display *Temp. range:-20~50 C *Temp. resolution:0.1 C/ F *Temp. accuracy:+/-1 C *Humidity. range:0%~100%RH *Humidity resolution:0.1%RH *Humidity accuracy:+/-3%RH (at 25 C, 10~90%RH, others +/-5%RH) Dew point range:-68.5~50 C *Response time (Seconds typical):60 *Battery Life :>500 hours *LCD size (mm):18(H)x29(W) *Storage temp.:-20~50 C *Storage RH%:Humidity <90% *Dimension(mm):170x48.5x16.5(H) *Weight:~75g *Battery:AAA x 2pcs *Standard Package:Meter/Battery/Manual/Paper box