<b>Specification:</b><p> Type: Digital Thermometer Hygrometer<br> Material: ABS<br> Screen: LCD display<br> External dimension: 1.89 x 1.13 x 0.6" (48 x 28.6 x 15.2mm)<br> LCD size: 1.4 x 0.66" (35.7 x 16.8mm)<br> Weight: 0.6oz (18g) (2 button cells included<br> Humidity measurement range: 10%-99%<br> Humidity measurement accuracy: +/-5%<br> Humidity sampling period: 10 seconds<br> Rated voltage: DC 1.5V (2 LR44 button cells included)<br> Temperature measurement range: -58℉-158℉<br> Temperature measurement accuracy: ±2℉ (under normal temperature)<br> Function: display temperature and humidity<br> Application: temperature/humidity measurement<p> <b>Package Includes:</b><p> 4 x Digital Thermometer Hygrometer