Features: 2 In 1 Sauna Thermometers: The sauna Thermometers and hygrometer adopts a two-in-one, allowing you check the humidity and temperature of the sauna room in time. Temperature and Humidity Ranges: The displayed temperature of the sauna Thermometers is between 50F-210F, and the humidity display ranges of the sauna hygrometer is 0-100% humidity, which is suitable to measure the moisture content and temperature in the sauna room. With LED Light: The sauna accessories is make of clear acrylic light-transmitting board and wood base, resistant to falling, not easy to break. White led lighting ensures the scale is clearly visible and easy to read. With 1800mAh Battery: Our sauna Thermometers with 1800mAh battery, it can be used for 4-6 hours after fully charging. It's suitable for hotel, family, sauna indoor temperature and humidity measurement. Size: 8.8inx8.2inx1.1in. Easy to Install & Adjustable: The sauna Thermometers is easy to mount on wall, 2 calibrators on the back of the Thermometers, one for adjusting Temperature and one for adjusting humidity. Specifications: Material: ABS, Wood Measurement: Temperature: 50~210 Humidity: 0%~100% Light: White Battery: Built in 1800mAh battery Working Time: 4-6 hours after full charging Size: About. 20.5x18x18cm/8.07x7.09x7.09in Note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color. Package includes: 1pc Sauna Thermometers 1pc Charging Cable 1pc Instruction Manual