Carevas WiFi Decibel Meter 4in1 Humidity Decibel Test 11inch Color Display Intelligent Linkage APP Control Noise Decibel Meter

4in1 Design: The 4-in-1 function is designed to combine a sound meter, , humidity meter and in one. It is a useful tool for testing, monitoring or controlling and testing the ambient environment and sound level. Semiconductor Sensor: Adopts semiconductor air sensor, it tests , humidity, and decibel values with high accuracy and sensitivity. Digital Color Display: 11inch large display with time, , humidity, and decibels display function, all the data can be seen at a glance. And the br