Liquid Flow Meter - Brass 1/2 Nominal Threaded
100 units available with a short lead time.
This brass liquid flow meter measures water or other liquid flow using a pinwheel and Hall effect sensor. As liquid passes through the 1/2" threaded brass body, it spins an internal pinwheel with a magnet attached. A Hall effect sensor on the outside of the tube counts the rotations through the metal wall, keeping the electronics safe and dry.
Each pulse from the sensor corresponds to approximately 2 mL of liquid. Connect the three-wire output (red = 5–18V power, black = ground, yellow = pulse output) to a microcontroller and count pulses to track flow. Comes with a 3-pin JST SM connector for easy wiring.
Key Features
- Hall Effect Pulse Output – ~2 mL per pulse for simple flow measurement
- Brass 1/2" Threaded Body – Durable construction for inline plumbing installation
- Safe, Dry Electronics – Magnetic sensing through the brass wall, no contact with liquid
- Wide Voltage Range – 5–18V DC power input
- 3-Pin JST SM Connector – Quick connect/disconnect wiring
Ideal For
- Garden irrigation and watering systems
- Solar thermal and water heating monitors
- Computer liquid cooling flow monitoring
- Aquarium and hydroponic flow tracking
Resources
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