Hour counter detection via pressure

"Hour counter for equipment with hydraulic source.

Autonomous: powered by lithium battery (duration 8 years).
Tamper-proof: case sealed and sealed with lead (reset locked).
Simple and quick to assembly: pressure switch pre-tared to 3 bar, protected by a heat-retractable sheath.
Precise: counts the number of pulses (Example:

- Sealed case IP67.