Huahine SAU 2001 - EPSG:5605

WKT

VERTCS["Huahine_SAU_2001", 
	VDATUM["Huahine_SAU_2001"], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["Huahine_SAU_2001", 
	VDATUM["Huahine_SAU_2001"], 
	CS[vertical, 1], 
	AXIS["Gravity-related height (H)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["EPSG", "5605"]]

Data from @esri/proj-codes

{
  "wkid": 5605,
  "latestWkid": 5605,
  "macro": "PE_VCS_HUAHINE_SAU_2001",
  "name": "Huahine_SAU_2001",
  "wkt": "VERTCS[\"Huahine_SAU_2001\",VDATUM[\"Huahine_SAU_2001\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"Huahine_SAU_2001\",VDATUM[\"Huahine_SAU_2001\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"EPSG\",\"5605\"]]",
  "description": "Huahine SAU 2001",
  "authority": "EPSG",
  "version": "6.15(9.3.0.0)",
  "deprecated": "no",
  "areaname": "French Polynesia - Society Islands - Huahine",
  "extent": {
    "slat": -16.87,
    "nlat": -16.63,
    "llon": -151.11,
    "rlon": -150.89
  }
}