Digiten G1" Male Thread Water Flow Hall Sensor Switch Flowmeter Counter 2-50L/min sound GRACEFUL SOUND-- It makes the

GRACEFUL SOUND-- It makes the most graceful sound when you hum into it

Everyone can play it even without any music theory knowledge

High Reflectivity---- Telescope Eyepiece built-in high-definition reflective prism

FUNCTIONAL -- Keep your keys safe and organised

Digiten G1" Male Thread Water Flow Hall Sensor Switch Flowmeter Counter 2-50L/min sound GRACEFUL SOUND-- It makes theDigiten G1" Male Thread Water Flow Hall Sensor Switch Flowmeter Counter 2 50L min Descriptions: 1. This flow sensor is made of brown, it is waterproof,heat resistance,pressurresistance,cold resistance. 2. It is small size and easy to install. 3. The flowmeter can be used in a wide range of instruments to measure the flow of fluid in pipes 4. The flow meter is stable and reliable. 5. All materials are in line with ROHS testing standards.