Buyin-now Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Probe Temperature Range: -40c ~ 70c Measuring Humidity Range: 10% RH ~ 95% RH Humidity Accuracy:5% Humidity Display Resolution: 1% RH Temperature Accuracy: 1C Operating Voltage: 1.5v, or LR44 batteries(Include) Dimension: 48 x 28.5 x 15.2mm LCD Dimension: 40 x 22.5mm