1.3in1 Barometer Hygrometer: Outdoor hygrometer/barometer/thermometer can accurately measure humidity, air pressure and temperature in the range of 960 to 1060 hPa, 20 to 50 ℃, 0 to Rh, the barometer can accurately measure the weather. 2.Indoor and Outdoor BarometerThe barometer, thermometer and hygrometer can be placed indoors or outdoors, the barometer is suitable for home use, lightweight, easy to carry, can be used when doing activities like fishing, hiking, etc. Indoor and outdoor thermometers are soft, strong, durable, with good performance and long life, economical and practical. 3.Easy to Install: , easy to install, suitable for hanging or standing on the surface. Suitable for patios, gardens, porches, garages, living rooms, offices, etc., classic and practical, simple and retro, suitable for decorating different home styles. 4.Dial Barometer: The most important function of the barometer is the barometric trend. And you can record the air pressure at certain times for a clear comparison. Measure changes in temperature, humidity and air pressure parameters.