Black Round LCD Display Thermometer Hygrometer Description: Display mode: LCD display Opening diameter: 41mm Dimensions: 45.2mm LCD diameter: 27mm Weight 25g Temperature measurement range: -50-70 celsius degree Humidity measurement range door: 10%-99% Humidity display resolution: 1% Humidity sampling cycle: 10 seconds (1 minute) Temperature measurement accuracy: ±1 degree (under normal temperature) Humidity measurement accuracy: soil 5% Rated voltage: DC1.5V (1pcs AG13/LR44 button battery, battery is not included as default)