Features Display Real Time Temperature and Humidity: The screen displays real time temperature and humidity, clear digital display is easy to read. The bold digital display makes it easier to read the temperature data of the whole day with the hygrometer. Data can be read in real time. External Temperature Humidity Probe: External temperature and humidity probe can test the temperature of another enclosed environment. You can monitor the digital hygrometer from anywhere in your home at any time. Good Quality Materials: The humidity temperature gauge is made of good quality materials, ensure durability and practicality. The humidity temperature meter is accurate, portable and durable for a long service life. ±1℃ Measurement Error: The thermometer and hygrometer has high precision, wide measuring range and strong practicability. Temperature measurement range from -50~70℃, measurement error for ±1℃, resolution is 0.1℃, humidity range from 10%-99%RH. Real Time Data: The thermometer and hygrometer provide accurate and real-time temperature and humidity data to perceive the environment and improve air comfort. You can monitor the digital hygrometer at any time in your home. Specification: Item Type: Humidity Temperature Gauge Model: DTH-74 Temperature Measurement Range: -50~70℃ Measurement Error: ±1℃ Resolution: 0.1℃Humidity Range: 10%-99%RH Battery Information: 1 x 1.5V 600mAh AAA dry battery(not included) Package List: 1 x Humidity Temperature Gauge Note: The probe has a suction cup that can be attached to smooth objects that need to be measured. Package List 1 x Humidity Temperature Gauge