Mini LCD Digital Temperature and Humidity Sensor

This mini digital hygrometer has two icons. When the humidity is between 40% and 70%, it displays a happy face When the humidity is below 40% or above 70%, it displays an unhappy face. This way, you can keep your home healthy and comfortable at a glance. Temperature measurement range: -10℃~70℃. Temperature measurement accuracy: ±2℃. The measurement conditions are refreshed every 10 seconds. Indoor/outdoor humidity measurement range: 10%RH-99%RH. Humidity measurement deviation accuracy: ±5%RH. This hygrometer thermometer (4.3*4.3*1.3cm, weighing only 21 grams) is small, durable and portable, which can save space and carry with you