Features: -Function: This thermometer provides accurate indoor humidity and temperature readings. -Air Comfort Indicator: Level icons indicate air comfort, perfect for monitoring your home living conditions and health. -Clear reading: numbers are large and easy to read. -Convenient design: can be connected to the refrigerator or placed on the table with hanging holes and rear rack. -Application: Suitable for office, bedroom, living room, bathroom, school, etc. -Premium quality: Made of high-quality ABS plastic, durable and stylish design to perfectly match your room. How: Type A Material: ABS Color: White/Pink/Green Product Size: 43x43mm Temperature measurement range: -9.9 deg; c ~ + 50 deg; c (14.18 deg; f ~ + 122 deg; f) Humidity measurement: 10% ~ 99% RH Battery: 1 x CR2032 coin cell battery required (not included) Type B Material: ABS Color: white Product size: 45 x 45 mm Temperature measurement range: -50 deg ; c ~ + 70 deg; c (-58 deg; f ~ + 158 deg; f) Humidity measurement: 10% ~ 99% RH Battery: 1 x required AG13 coin cell (not included) Package includes: 1 * thermo-hygrometer (battery not included)