The indoor thermometer hygrometer is made of ABS material, ensure maximum durability for long-lasting usage. Easily monitor temperature and humidity data in real time. The indoor thermometer hygrometer is perfect for wine cellars, basements, home, hotels, hospitals, etc. Features -Color:White -Material:ABS -Size:15.20X9.55X2.20cm/5.97X3.75X0.86in -Size:10.50X5.00X2.60cm/4.13X1.97X1.02in - Power supply: 3 x AAA batteries(Not included) - Measuring range: - Indoor temperature display range: -9.9 degree centigrade ~ +50 degree centigrade & 14 fahrenheit scale ~ +122 fahrenheit scale - Indoor humidity range: 20%-95% RH - Outdoor temperature display range: -40 degree centigrade ~ +60 degree centigrade & -40 fahrenheit scale ~ +140 fahrenheit scale - Outdoor humidity range: 20%-95% RH - Resolution: - Temperature display resolution: 0.1 degree centigrade & 0.1 fahrenheit scale - Humidity display resolution: 1%RH - Error: - 0 degree centigrade to 40 degree centigrade/ 32 °F to 104 °F: ±1 degree centigrade/1.8°F - -20 ~ 0 degree centigrade/40 degree centigrade ~ 65 degree centigrade/-4 fahrenheit scale ~ scale/104 fahrenheit scale ~ 149 fahrenheit scale: ±2 degree centigrade/3.6°F - 40%RH to 80%RH: ±5%RH - Wireless can be applied to be used in company, factory, school, shopping mall, etc. - Portable size and large digits make hygrometer thermometer easy to read and be placed in indoor locations. - Large LCD display screen, easy to read, ensure you’re always aware of changes to your home with just a quick glance. - This digital hygrometer thermometer displays temperature and humidity to allow you to make proper comparisons. - The thermometer has proper size, light in weight and won't take up much more space. Package list: 1 Thermometer 1 x Launcher