Digital Alarm Clock with adjustable volume. With the function of - thermo-hygrometer, it helps monitor body condition. Power supply: AA battery - 2 - LED Backlight: Yes - 12-hour or 24-hour display: Yes - Temperature display: -9.9? - 50? (14.2? - 122?) - Humidity display: 20-95% - Snooze function: Yes - Accuracy: Temperature Â±2?, Humidity Â±10%;Dimensions: H8.3x;W7.6x;L17cms;Do not subject to strong vibration or impact, do not use in places with high temperature and high humidity, do not disassemble or modify. Do not use benzine, thinner, alcohol, or spray cleaner to clean the case.