Temperature measurement accuracy: 1 degree ( at room temperature )<br />Humidity sampling cycle: 10 seconds (1 minute)<br />Outer diameter: about 4.52 cm / 1.78 in ( measurement with a small erro r)<br />LCD display<br />Weight: about 25 g ( without batteries )<br />Humidity measurement accuracy:  5%<br />Battery Type: 2* LR44 batteries(not included)<br />Humidity display<br /> Temperature measurement range: -50 to 70<br />Humidity measurement range: 10% to 99%<br />Opening size: Diameter about 4.1 cm / 1.61 in ( measurement with a small error )<br />Humidity Display Resolution: 1%<br />Package Included:<br />1 * Thermometer(Batteries not included)