Kasstino Mini Digital LCD Display Thermometer Hygrometer Temperature Humidity Meter Measuring humidity: 10%RH-99%RH. Humidity accuracy: 5%. Humidity display resolution: 1% RH Measuring temperature range: -10Celsius~50Celsius. Temperature accuracy: 1 Celsius. Temperature display resolution: 0.1 Celsius Operating voltage: 2 x 1.5V button LR44 batteries (Not included) Dimension: 4.8x2.8x1.3cm. LCD dimension: 3.6x1.7cm Cable length: 1.45m. Probe length: 5.5cm