Gravity: Analog Sound Level Meter Shipping:4-6 Days Built-in clock button

Built-in clock button

Power Cable(s) x1

so you don't need to issue separate commands which would otherwise slow things down

shrimp cylinder environment control

Gravity: Analog Sound Level Meter Shipping:4-6 Days Built-in clock buttonThis is an Arduino compatible sound level meter(also known as decibel meter, noise meter). It uses instrument circuit and low noise microphone, which enable it to accurately measure the sound level of the surrounding environment. It can be applied to environmental noise testing, such as highway noise monitoring station, bedroom noise monitoring, etc. Nowadays, there are many kinds of sounds surrounding, some of which are really noisy. It is really