[High precision] The digital indoor thermometer with 24 vents has a high precision of 2.7 F/ 1.5 C and 5% RH. Fast response, measuring every 10 seconds, very suitable for monitoring the temperature and humidity of offices, living rooms, reptile fences, warehouses, basements, wine cellars, etc. [3 Installation ] There are three installation for indoor thermometer: the indoor thermometer has a desktop bracket with a hanging hole, which can be conveniently hung . The powerful magnet allows it to be placed on refrigerators and other household appliances. You can easily put the thermometer anywhere in your home. [Portable LCD screen] The compact and portable design of the hygrometer is very space saving and easy to carry. In addition, the household thermometer is equipped with a LCD display, which can easily and clearly read readings even in a long distance, and is very suitable for travel or business travel. (Note: The size is 2.3 inch high x 1.8 inch wide, about the size of an egg, which can be in your hand) [ C/ F switch and simple operation] This hygrometer has only one button, and you can easily switch between Celsius and Fahrenheit temperature units. In addition, the hygrometer has three icons to indicate the current comfort level - "comfort" is a smiling face, "normal comfort" is a raindrop, and "discomfort" is three raindrops. You know the indoor air condition is convenient. Material: Plastic colour: Black Package Contents: 2 x humidity meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.