1Pc Room Thermometer Hygrometer Indoor, Mini Digital Temperature Humidity Meter
When the humidity is between 40% and 70%, it will display a smiling face. (Deviation ±2°C and ±5%RH is normal). Colour A 1pc White. 1 Living Room. 2 Baby Room. Temperature resolution: 0.1 ℃ (0.2 ). 4.5 cm x 4.7 cm x 1.9 cm.