This is a trophy war in Ukraine.

Linear flow sensor module, brass, complete.

This is not “just an incomprehensible detail” - by design, it is an integrated liquid flow sensor (inline flow sensor), and not for household use, but closer to industrial/specialized applications.

What exactly is this.

An inline flow sensor (most likely a turbine or pulse type) with inductive/magnetic signal pickup.

Operating principle

Inside:

there is a turbine/impeller

the fluid flow rotates it

the blades pass by the coil

the coil detects changes in the magnetic field → generates pulses

👉 The pulse frequency ∝ the flow velocity.

Typical specifications (based on design, not just guesswork, but based on similar models)

Type: turbine/pulse flow meter

Media: liquid (water, fuel, oil – depends on design)

Pressure: typically up to 10–30 bar (brass allows)

Temperature: up to ~80–120°C (limited by board/sealant)

Output:

pulse signal (frequency)

sometimes analog (via board)

Power supply: 5–24 V (depending on circuit)

📦 Applications

fuel systems

water lines

cooling circuits

dosing units

automation (pumps, stations).

All paper stickers will be removed from the item before shipping.