Product size: 44*44*12mm Battery model: CR2032 (installed) Humidity measurement range: 10%-99% RH Humidity measurement accuracy: 5% RH Product material: ABS Temperature measurement accuracy: 1 (1.8 F) Temperature measurement range: -10 ~70C(14F~158F) Display type: LCD Product care instructions: Wipe with a cloth Quantity: 2 pieces RELIABLE ACCURACY: Thermometer hygrometer The measurable temperature range: -50 ~ + 70 (-58 F ~ + 158 F), temperature measurement accuracy: 1.0 ( 1.8 F), temperature resolution: 0.1 ( 0.2 F). Measurable humidity range: 10%RH~99%RH, Humidity measurement accuracy: 5%RH, Humidity resolution: 1%RH. HUMIDITY TEMPERATURE MONITOR: Indoor Thermometer This portable hygrometer thermometer measures indoor humidity and temperature, helping you know the indoor air condition. Become the perfect choice for your personal and professional life. EASY TO INSTALL: It can be placed on a table or shelf, or fixed to the wall with wall stickers, or threaded through the hanging hole of the thermometer and hygrometer and then hung on a nail. (Note: The product does not include the fine lines) EASY TO READ: The larger font displays the current temperature and humidity, even if the distance is far, you can read the reading, smiles or unhappy expressions can help you relieve stress properly. WIDE APPLICATIONS: The mini digital LCD thermo-hygrometer thermometer is very popular and widely used in living rooms, greenhouses, instrument rooms, wine cellars, basements, warehouses, attics, baby rooms and dressing rooms.