High Reliability and Accuracy: Built-in accurate and sensitive sensor; Temperature measurement range: -10 to 70 degrees Celsius, Celsius and Fahrenheit optional; Humidity: 20 % to 95 %. Fast response, measuring 10 seconds, constantly updating real-time temperature and humidity around you with high accuracy of +/- 1C and +/- 2~3% RH. Room thermometer can help you find a comfortable and healthy balance.COMFORT INDICATOR: The digital thermometer hygrometer with humidity symbols LOW/OK/HIGH is easy to . This hygrometer thermometer measures indoor humidity and temperature and helps regulate humidifiers, dehumidifiers and humidifiers. It is perfect for monitoring indoor living conditions and health by preventing colds, dry , asthma, allergies and mold. Your Home Comfort: If you spend most of your time indoors, a hygrometer can help you determine when to adjust the humidity level to a level that is comfortable and your loved ones. With a hygrometer, you can check the humidity level so that you can take the appropriate action to turn on the ventilation or heating system.Easy to Use: This hygrometer room thermometer has no complicated function buttons (F/C switchable) and a bright, black front panel with a clear LCD display that is easy to read even from a distance. They are powered by 2 AAA batteries (not included) and do not require any maintenance. perfect for children's rooms, living rooms, offices, conservatories, gardens or basements, etc.Flexible Installation: This hygrometer room thermometer comes with a built-in bracket and hanging holes, so you can place it on a table or mount it using the hanging holes on the back. It can help you health and comfort in your home and workplace, and to some extent reduce health problemsAn perfect indoor climate not only hasa positive effect on -being, it is also beneficial for health. The two key values that determine the indoor climate are temperature and relative humidity. For example, too little humidity not only causes burning eyes and chapped lips. It also leads to a dried-out nasal mucosa, which then no offers any protection against inhaled pathogens.Temperature range: -10 C ~ 70 C. Temperature accuracy: -40 C ~ -20 C: +/- 4 C -20 C ~ 0 C: +/- 2 C 0 C ~ 50 C: +/- 1 C. Humidity accuracy: +/- 5% RH (at 25 C, 30% RH to 50= 3:3= RH) +/- 10% RH (at 25 C, 20% RH to 29% RH, 51% RH to 95%RH) Color Comfort Level Indicator: LOW / OK / HIGH Max & Min Records / Reset F / C Selector SwitchColour: blackMaterial: plasticSize: 85 x 95.5 x 21mmPackage Contents:1 x room thermometerWarm Tips:1. To accurate temperature measurement, place the indoor thermometer hygrometer out of direct sunlight and from heat sources, air or sources of moisture.2. Do not clean any part of the thermometer hygrometer with benzene, thinner or other solvent chemicals. If necessary, clean it with a soft cloth.3. Never immerse the thermometer hygrometer in water. this will damage the product. With the practical thermometer hygrometer control over the room climate e.g. living room, bedroom and children's room.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.