Measurable temperature range-50 ~ 70, temperature measurement accuracy: 1.0. Measurable humidity range10%~99%RH, humidity measurement accuracy: 5%RH, measured every 10 seconds. Product size48 * 28.6 * 15.2mm. Battery: two LR44 button batteries. The small portable temperature and humidity meter is suitable for every scene. Humidity Temperature MonitorThis portable thermometer hygrometer measures indoor humidity and temperature, helping you know the indoor air conditions. Wide Range of ApplicationsMini digital thermometer hygrometer is widely used in living room, greenhouse, instrument room, wine cellar, basement, warehouse, attic, baby room, changing room. Product Feature Mini thermo hygrometer, compact size, exquisite design, easy to carry, suitable for various scenes. With a digital thermometer and hygrometer, you can always know the latest changes in indoor climate. Product Specifications Measurable temperature range: -50 ~ 70 Temperature measurement accuracy: 1.0 Relative humidity test range: 10% ~ 99%RH Humidity measurement accuracy: 5%RH, (at room temperature 25) Sampling cycle: 10 seconds Size: 48 x 28.6 x 15.2mm Display: LCD Battery: 2 x 1.5V LR44 button batteries Material: PVC plastic Package Included 3x Digital Thermometer Hygrometer (Battery included)