Update tf016_tf021.json

Added parameter 21 for thermostats to report kWh, Watt and Volt

packages/config/config/devices/0x019b/tf016_tf021.json

@@ -250,6 +250,15 @@
 			"maxValue": 100,
 			"defaultValue": 10
 		}
+		{
+			"#": "21",
+			"label": "Meter Report Data Delta",
+			"description": "Delta value in kWh between consecutive meter reports. Range 0-255 (0 to 25.5 kWh). A value of 0 disables reporting based on change.",
+			"valueSize": 1,
+			"minValue": 0,
+			"maxValue": 255,
+			"defaultValue": 10
+		}
 	],
 	"compat": {
 		// The device reports its relay state via the Basic CC
@@ -269,4 +278,21 @@
 		"reset": "By pressing buttons Left and Center (up and confirm) for 20 seconds, the thermostat will perform a complete factory reset.\nPlease use this procedure only when the primary controller is missing or otherwise inoperable",
 		"manual": "https://products.z-wavealliance.org/ProductManual/File?folder=&filename=MarketCertificationFiles/1234/Manual_Multireg%20Z-Wave_Ver2015-A.pdf"
 	}
+	"meterCommandClass": {
+		"getSupport": true,
+		"reportScales": {
+			"import": true,
+			"meterType": "Electric meter (0x01)",
+			"precision": {
+				"kWh": 1,
+				"W": 2,
+				"V": 1
+			},
+			"size": {
+				"kWh": 4,
+				"W": 4,
+				"V": 2
+			}
+		}
+	}
 }