Features: \n\n--80m/260ft Bluetooth Remote Range: Digital room thermometer contains an enhanced Bluetooth Technology to remotely monitor temperature and humidity on the ThermoPro Sensor App within 80m/260ft (no obstructions), it will always have full home coverage\n--High Accuracy & 10s Refresh: With the built-in Swiss-made temperature humidity sensor, Bluetooth hygrometer provides high precise monitoring. The temperature is accurate to 0.2C while humidity is 2%RH. Temperature and humidity indicator are updated every 10 seconds to keep you informed of the latest changes in the air conditioner.\n--Clock with Day of Week Display and Air Comfort Level: Indoor thermometer with backlit shows time and day of week in LCD display. Room temperature monitor has DRY/COMFORT/WET three level comfort indicator, you can check the air condition quickly with just a glance. Ensures proper temperature and humidity, great for monitoring family's living conditions and health by preventing colds, dry !