What is the value of Unwrapp to Elevation?

Hi everyone, i have problem after unwrapping the pair of sentinel data and conversion to elevation, the result is like that, i dont know what is the value scale for this, because my research area elevation is on range 1400 to 1500 meter.

please do not post the same question twice: Conversion Unwrapp to Displacement (meters) in Geothermal Field