linkstyle mini digital thermometer hygrometer indoor temperature humidity meter gauge lcd celsius (°c) display (humidity with probe) linkstyle type:digital thermometer hygrometer material:abs screen:lcd display external dimension:1.89x1.13x0.6in (48x28.6x15.2mm) lcd size:1.4x0.66in (35.7x16.8mm) weight:1.2oz (35g) (2 button cells included) humidity measurement range:10%-99% humidity measurement accuracy:+/-5% humidity sampling period:10 seconds rated voltage:dc 1.5v (2 lr44 button cells) temperature measurement range:-50-70 temperature measurement accuracy:+/-1 celsius degree (under normal temperature) function:display temperature and humidity application:temperature/humidity measurement