Accurate reading: Thermometer indoor outdoor is equipped with a high precision sensor with patented technology, which can respond sensitively to temperature changes. Temperature accuracy of +/-1 provides more accurate readings. Clear screen: Room thermometer indoor clear screen makes reading very easy and comfortable. Remote transmission: Outdoor thermometer can be transmitted up to 500 feet (150 meters) to meet the needs of long-distance transmission. It also performs well when used outdoors. Wide application: Inside outside thermometer wireless can connect up to three sensors, so you can monitor the temperature in different places at the same time, such as the living room, bedroom, baby room, kitchen, garage or garden.