thanks @Rmb @Robin_De_Lange on your active support, thanks to your insights, I was able to connect pressure monitoring and got now readings via Fibaro Smart Implant
Monitoring :
- 0 Bar - eg. water supply outage or in hour water pipe accident
- above 5 bar - higher pressure then anticipated (eg. I get 8 bar when water boiler heats so I can control it accordingly and turn off water heating instead of keeping pipes and filters facing 8 bar (safety valve max) for days/weeks, eg. during vacation) (yeah, I don’t have expansion tank installed)
- accident during expected stable pressure (eg. you kept somewhere water valve opened)
- house activity (kids coming from outside not washing their hands immediately - just kidding)
- … you tell
For everyone else interested :
- 1x 0-10V 16bar - https://www.aliexpress.us/item/1005004182022131.html?gatewayAdapt=4itemAdapt
- 1x Fibaro Smart Implant (btw, I get the name now - it’s really small!)
- 1x 12V power supply (used old crap, 500mA)
Fibaro instructions for this particular sensor : https://manuals.fibaro.com/wp-content/uploads/2024/01/FGBS-222-T-EN-rev.1.2.6.pdf
(parameters 20 and 21 are Input types )
In Homey I also changed minimal value for reporting
Sensor Calibration instructions required to get correct values displayed (had to ask seller, Google did not help!) - I have adjusted only UNIT and DSH (I got 16 Bar version, so I set DSH to 16 Bar, changed Unit to BAR and changed DP - decimal point.
ADL (Zero Current Value) and ADH (Full Scale Value):
Process: ADL is the reading when there's zero pressure. ADH is the reading at full scale pressure.
Purpose: These are auto-collected and are critical for ensuring the scale of the device is set correctly.
Process: Apply the pressure you want to measure. While the pressure is applied, use the up or down buttons to adjust the display. Wait for the display number to stabilize, then confirm the value by pressing both keys (up and down) together.
Purpose: This is to ensure that the transmitter accurately reads the applied pressure.
DSL (Zero Display Value) and DSH (Full Scale Display Value):
Settings: These allow you to set what the display shows for zero and full scale pressures.
Purpose: To calibrate what values the display shows at the extremes of its range.
LINE (Linear Correction Input):
Process: Enter the inverse of the error at the midpoint of the current pressure range.
Purpose: Further fine-tuning to ensure accuracy across the entire range.
DP (Decimal Point Control):
Settings: You can set where the decimal point is displayed.
Purpose: For precise control over how the pressure value is displayed (e.g., 10.0 vs 100).
Linear Correction:
Process: Apply a known midpoint pressure. If there's a difference between the theoretical (expected) value and what's displayed, you can adjust the display to correct this difference.
Purpose: To make sure the device reads accurately across its range, not just at zero or full scale.
Filter Coefficient (FILT):
Settings: Choose a value between 0-9. A higher value means a more stable display (less sensitive to quick changes in pressure) but slower to respond to real changes.
Purpose: To manage how the device reacts to fluctuations in pressure.
Calibration Password:
Info: The password is "66". Only advanced users should access the calibration settings.
Keys Use:
Settings:
Press both keys simultaneously for one function (referred to as 'SET').
Press the up button or the down button separately for different functions.
Note: Buttons are effective only when pressed and released; they don't support holding down.
Homey setup - used Device Capabilities fantastic app from Arie and based on comments from @Rmb just recalculating linearly the pressure = 16/10*Voltage input 1 (in my case for 0-16bar, I get 0V readings on 0bar, 10V on 16bar)
Before
After
Electrical part 
note - what each wire means is engraved on the sensor body !
