The Triplett RHT12 has a dual display for Humidity (10 to 99%RH) and Temperature (14 to 122°/-10 to 50°C) measurement in labs, green houses, cleanrooms, warehouses, museums, offices, schools, and homes. In addition, its small profile fits easily in precision instrument, camera equipment and musical instrument cases, humidors, terrariums, and other enclosed displays. It has ±5%RH/±1.8°F/1°C accuracy and temperature readings are °F/°C switchable. It includes a built-in stand and an LR44 battery. 1-year warranty.