diff --git a/sonoff/xdrv_07_domoticz.ino b/sonoff/xdrv_07_domoticz.ino
index 2acd60a0d..e5bd2705f 100644
--- a/sonoff/xdrv_07_domoticz.ino
+++ b/sonoff/xdrv_07_domoticz.ino
@@ -36,14 +36,13 @@ void (* const DomoticzCommand[])(void) PROGMEM = {
 
 const char DOMOTICZ_MESSAGE[] PROGMEM = "{\"idx\":%d,\"nvalue\":%d,\"svalue\":\"%s\",\"Battery\":%d,\"RSSI\":%d}";
 
-//enum DomoticzSensors {DZ_TEMP, DZ_TEMP_HUM, DZ_TEMP_HUM_BARO, DZ_POWER_ENERGY, DZ_ILLUMINANCE, DZ_COUNT, DZ_VOLTAGE, DZ_CURRENT, DZ_AIRQUALITY, DZ_MAX_SENSORS};
-
 #if MAX_DOMOTICZ_SNS_IDX < DZ_MAX_SENSORS
   #error "Domoticz: Too many sensors or change settings.h layout"
 #endif
 
 const char kDomoticzSensors[] PROGMEM =
-  D_DOMOTICZ_TEMP "|" D_DOMOTICZ_TEMP_HUM "|" D_DOMOTICZ_TEMP_HUM_BARO "|" D_DOMOTICZ_POWER_ENERGY "|" D_DOMOTICZ_ILLUMINANCE "|" D_DOMOTICZ_COUNT "|" D_DOMOTICZ_VOLTAGE "|" D_DOMOTICZ_CURRENT "|" D_DOMOTICZ_AIRQUALITY ;
+  D_DOMOTICZ_TEMP "|" D_DOMOTICZ_TEMP_HUM "|" D_DOMOTICZ_TEMP_HUM_BARO "|" D_DOMOTICZ_POWER_ENERGY "|" D_DOMOTICZ_ILLUMINANCE "|"
+  D_DOMOTICZ_COUNT "|" D_DOMOTICZ_VOLTAGE "|" D_DOMOTICZ_CURRENT "|" D_DOMOTICZ_AIRQUALITY "|" D_DOMOTICZ_P1_SMART_METER ;
 
 char domoticz_in_topic[] = DOMOTICZ_IN_TOPIC;
 char domoticz_out_topic[] = DOMOTICZ_OUT_TOPIC;
@@ -341,7 +340,7 @@ uint8_t DomoticzHumidityState(char *hum)
 void DomoticzSensor(uint8_t idx, char *data)
 {
   if (Settings.domoticz_sensor_idx[idx]) {
-    char dmess[100];
+    char dmess[128];  // {"idx":26700,"nvalue":0,"svalue":"22330.1;10234.4;22000.5;10243.4;1006;3000","Battery":100,"RSSI":10}
 
     memcpy(dmess, mqtt_data, sizeof(dmess));
     if (DZ_AIRQUALITY == idx) {
@@ -384,6 +383,19 @@ void DomoticzSensorPowerEnergy(int power, char *energy)
   DomoticzSensor(DZ_POWER_ENERGY, data);
 }
 
+void DomoticzSensorP1SmartMeter(char *usage1, char *usage2, char *return1, char *return2, int consumed, int produced)
+{
+  //usage1   = energy usage meter tariff 1, This is an incrementing counter
+  //usage2   = energy usage meter tariff 2, This is an incrementing counter
+  //return1  = energy return meter tariff 1, This is an incrementing counter
+  //return2  = energy return meter tariff 2, This is an incrementing counter
+  //consumed = actual usage power (Watt)
+  //produced = actual return power (Watt)
+  char data[64];
+  snprintf_P(data, sizeof(data), PSTR("%s;%s;%s;%s;%d;%d"), usage1, usage2, return1, return2, consumed, produced);
+  DomoticzSensor(DZ_P1_SMART_METER, data);
+}
+
 /*********************************************************************************************\
  * Commands
 \*********************************************************************************************/