diff --git a/schemas/legacy.json b/schemas/legacy.json
index 13cfdfa..fd46e00 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -46,6 +46,38 @@
             ],
             "type": "object"
         },
+        "CFMSensor": {
+            "additionalProperties": false,
+            "properties": {
+                "C1": {
+                    "$ref": "#/$defs/Types/C1"
+                },
+                "C2": {
+                    "$ref": "#/$defs/Types/C2"
+                },
+                "MaxCFM": {
+                    "$ref": "#/$defs/Types/MaxCFM"
+                },
+                "TachMaxPercent": {
+                    "$ref": "#/$defs/Types/TachMaxPercent"
+                },
+                "TachMinPercent": {
+                    "$ref": "#/$defs/Types/TachMinPercent"
+                },
+                "Tachs": {
+                    "$ref": "#/$defs/Types/Tachs"
+                },
+                "Name": {
+                    "$ref": "#/$defs/Types/Name"
+                },
+                "Type": {
+                    "type": "string",
+                    "const": "CFMSensor"
+                }
+            },
+            "required": ["Name", "Type"],
+            "type": "object"
+        },
         "Aggregate": {
             "description": "Don't add additional properties to this schema. Consult README.schema for instructions on adding new Exposes element sub-schema.",
             "additionalProperties": false,
@@ -65,12 +97,6 @@
                 "Bus": {
                     "$ref": "#/$defs/Types/Bus"
                 },
-                "C1": {
-                    "$ref": "#/$defs/Types/C1"
-                },
-                "C2": {
-                    "$ref": "#/$defs/Types/C2"
-                },
                 "CPURequired": {
                     "$ref": "#/$defs/Types/CPURequired"
                 },
@@ -119,9 +145,6 @@
                 "Labels": {
                     "$ref": "#/$defs/Types/Labels"
                 },
-                "MaxCFM": {
-                    "$ref": "#/$defs/Types/MaxCFM"
-                },
                 "MaxReading": {
                     "$ref": "#/$defs/Types/MaxReading"
                 },
@@ -236,12 +259,6 @@
                 "SlotId": {
                     "$ref": "#/$defs/Types/SlotId"
                 },
-                "TachMaxPercent": {
-                    "$ref": "#/$defs/Types/TachMaxPercent"
-                },
-                "TachMinPercent": {
-                    "$ref": "#/$defs/Types/TachMinPercent"
-                },
                 "Tachs": {
                     "$ref": "#/$defs/Types/Tachs"
                 },
@@ -2084,7 +2101,6 @@
                     "MultiNodeID",
                     "MultiNodePresence",
                     "PSUPresence",
-                    "CFMSensor",
                     "Intel HSBP CPLD",
                     "IntelHsbpFruDevice",
                     "IntelHsbpTempSensor",