Introducing the Indoor Outdoor Thermometer Wireless Weather Station! This high - precision device features a Swiss - made sensirion sensor, offering an indoor temperature range of +14.2ºF~+122ºF and an outdoor range of -58ºF~+158ºF, with humidity range from 1~99%. The patented wireless technology ensures powerful and stable data transmission up to 330 ft radius every 30 seconds. It not only provides real - time weather forecasts but also displays heat, dew point, and mold indices. The large, clear backlit display is easy to read and can be placed on a tabletop or wall - mounted. With a size of 5.71 x 5.71 x 1.46 inches, it's compact yet functional. This weather station is perfect for homes, offices, or any place where you need to monitor the climate, bringing convenience and accurate information to your daily life. It supports up to 3 sensors, just make sure they are on different channels.