Thermometer Humidity Hygrometer With Probe All-in-one Digital Large LCD Screen Electronic hygro-thermometer Timer, Temperature and Humidity Meter, Alarm Clock Probe for Indoor and Outdoor With back stand and magnetic stick at back side. Size:98x105x23mm. Power: Takes 1 AAA battery, Excluded in the package,simple to use. Applications:Thermometer Hygrometer can used in the kitchen,bedroom,factory. The probe can't read the Numerical, the Numerical shows at screen.