diff --git a/src/components/Blockly/blocks/sensebox-lora.js b/src/components/Blockly/blocks/sensebox-lora.js
index df75ec6..00af880 100644
--- a/src/components/Blockly/blocks/sensebox-lora.js
+++ b/src/components/Blockly/blocks/sensebox-lora.js
@@ -158,7 +158,7 @@ Blockly.Blocks["sensebox_lora_ttn_mapper"] = {
     this.appendValueInput("Fix Type").appendField("Fix Type").setCheck(null);
     this.setPreviousStatement(true, null);
     this.setNextStatement(true, null);
-    this.setTooltip(Blockly.Msg.senseBox_display_printDisplay_tip);
+    this.setTooltip(Blockly.Msg.sensebox_lora_ttn_mapper_tip);
   },
 };
 
@@ -299,3 +299,21 @@ Blockly.Blocks["sensebox_lora_cayenne_gps"] = {
   },
   LOOP_TYPES: ["sensebox_lora_cayenne_send"],
 };
+
+Blockly.Blocks["sensebox_lora_cayenne_concentration"] = {
+  init: function () {
+    this.setTooltip(Blockly.Msg.senseBox_LoRa_cayenne_concentration_tip);
+    this.setHelpUrl("");
+    this.setColour(getColour().sensebox);
+    this.appendValueInput("Value").appendField(
+      Blockly.Msg.senseBox_LoRa_cayenne_concentration
+    );
+    this.appendDummyInput()
+      .setAlign(Blockly.ALIGN_LEFT)
+      .appendField(Blockly.Msg.senseBox_LoRa_cayenne_channel)
+      .appendField(new Blockly.FieldTextInput("1"), "CHANNEL");
+    this.setPreviousStatement(true, null);
+    this.setNextStatement(true, null);
+  },
+  LOOP_TYPES: ["sensebox_lora_cayenne_send"],
+};
diff --git a/src/components/Blockly/generator/sensebox-lora.js b/src/components/Blockly/generator/sensebox-lora.js
index dc4b1c2..c6b2394 100644
--- a/src/components/Blockly/generator/sensebox-lora.js
+++ b/src/components/Blockly/generator/sensebox-lora.js
@@ -523,3 +523,12 @@ Blockly.Arduino.sensebox_lora_cayenne_gps = function (block) {
   var code = `lpp.addGPS(${channel}, ${lat}, ${lng}, ${alt});\n`;
   return code;
 };
+
+Blockly.Arduino.sensebox_lora_cayenne_concentration = function (block) {
+  var value =
+    Blockly.Arduino.valueToCode(this, "Value", Blockly.Arduino.ORDER_ATOMIC) ||
+    0;
+  var channel = this.getFieldValue("CHANNEL");
+  var code = `lpp.addConcentration(${channel}, ${value});\n`;
+  return code;
+};
diff --git a/src/components/Blockly/msg/de/sensebox-lora.js b/src/components/Blockly/msg/de/sensebox-lora.js
index bb82897..8b25306 100644
--- a/src/components/Blockly/msg/de/sensebox-lora.js
+++ b/src/components/Blockly/msg/de/sensebox-lora.js
@@ -1,44 +1,57 @@
 export const LORA = {
-    /*
-     * LoRa Blöcke
-     */
+  /*
+   * LoRa Blöcke
+   */
 
-    senseBox_LoRa_connect: "Zu TTN senden",
-    senseBox_LoRa_device_id: "Device EUI (lsb)",
-    senseBox_LoRa_app_id: "Application EUI (lsb)",
-    senseBox_LoRa_app_key: "App Key (msb)",
-    senseBox_LoRa_nwskey_id: "Network Session Key (msb)",
-    senseBox_LoRa_appskey_id: "App Session Key (msb)",
-    senseBox_LoRa_devaddr_id: "Device Adress",
-    senseBox_LoRa_interval: "Intervall in Minuten",
-    senseBox_measurement: "Messung",
-    senseBox_measurements: "Messungen",
+  senseBox_LoRa_connect: "Zu TTN senden",
+  senseBox_LoRa_device_id: "Device EUI (lsb)",
+  senseBox_LoRa_app_id: "Application EUI (lsb)",
+  senseBox_LoRa_app_key: "App Key (msb)",
+  senseBox_LoRa_nwskey_id: "Network Session Key (msb)",
+  senseBox_LoRa_appskey_id: "App Session Key (msb)",
+  senseBox_LoRa_devaddr_id: "Device Adress",
+  senseBox_LoRa_interval: "Intervall in Minuten",
+  senseBox_measurement: "Messung",
+  senseBox_measurements: "Messungen",
 
-    senseBox_LoRa_send_message: "Sende als Lora Nachricht",
-    senseBox_LoRa_send_cayenne: "Sende als Cayenne Nachricht",
-    senseBox_LoRa_cayenne_temperature: "Temperatur",
-    senseBox_LoRa_cayenne_channel: "Kanal",
-    senseBox_LoRa_cayenne_humidity: "Luftfeuchtigkeit",
-    senseBox_LoRa_cayenne_pressure: "Luftdruck",
-    senseBox_LoRa_cayenne_luminosity: "Helligkeit",
-    senseBox_LoRa_cayenne_analog: "Analoger Wert",
-    senseBox_LoRa_cayenne_x: "X Wert",
-    senseBox_LoRa_cayenne_y: "Y Wert",
-    senseBox_LoRa_cayenne_z: "Z Wert",
-    senseBox_LoRa_cayenne_lat: "Breitengrad",
-    senseBox_LoRa_cayenne_lng: "Längengrad",
-    senseBox_LoRa_cayenne_alt: "Höhe",
+  senseBox_LoRa_send_message: "Sende als Lora Nachricht",
+  senseBox_LoRa_send_cayenne: "Sende als Cayenne Nachricht",
+  senseBox_LoRa_cayenne_temperature: "Temperatur",
+  senseBox_LoRa_cayenne_channel: "Kanal",
+  senseBox_LoRa_cayenne_humidity: "Luftfeuchtigkeit",
+  senseBox_LoRa_cayenne_pressure: "Luftdruck",
+  senseBox_LoRa_cayenne_luminosity: "Helligkeit",
+  senseBox_LoRa_cayenne_analog: "Analoger Wert",
+  senseBox_LoRa_cayenne_x: "X Wert",
+  senseBox_LoRa_cayenne_y: "Y Wert",
+  senseBox_LoRa_cayenne_z: "Z Wert",
+  senseBox_LoRa_cayenne_lat: "Breitengrad",
+  senseBox_LoRa_cayenne_lng: "Längengrad",
+  senseBox_LoRa_cayenne_alt: "Höhe",
+  senseBox_LoRa_cayenne_concentration: "Konzentration",
 
-    senseBox_LoRa_cayenne_tip: "Sende Daten als Cayenne Payload Format",
-    senseBox_LoRa_cayenne_gps_tip: "Sende GPS",
-    senseBox_LoRa_cayenne_temperature_tip: "Sendet Temperaturwert mit einer Nachkommastelle",
-    senseBox_LoRa_cayenne_pressure_tip: "Sendet Luftdruck mit einer Nachkommastelle",
-    senseBox_LoRa_cayenne_luminosity_tip: "Sendet Helligkeitswert",
-    senseBox_LoRa_cayenne_analog_tip: "Sendet einen Dezimalwert mit einer Nachkommastelle",
+  senseBox_LoRa_cayenne_tip: "Sende Daten als Cayenne Payload Format",
+  senseBox_LoRa_cayenne_gps_tip: "Sende GPS",
+  senseBox_LoRa_cayenne_temperature_tip:
+    "Sendet Temperaturwert mit einer Nachkommastelle",
+  senseBox_LoRa_cayenne_pressure_tip:
+    "Sendet Luftdruck mit einer Nachkommastelle",
+  senseBox_LoRa_cayenne_luminosity_tip: "Sendet Helligkeitswert",
+  senseBox_LoRa_cayenne_analog_tip:
+    "Sendet einen Dezimalwert mit einer Nachkommastelle",
 
-    senseBox_LoRa_message_tooltip: "Sende eine Nachricht über LoRa",
-    senseBox_LoRa_sensor_tip: "Sende einen Sensorwert mit einer bestimmten Anzahl an Bytes",
-    senseBox_LoRa_init_abp_tooltip: "Initialisiere die LoRa übertragung. Die Aktivierung erfolgt über ABP. Registriere eine Application auf [thethingsnetwork](https://thethingsnetwork.com) und kopiere den **Network Session Key** und den **App Session Key** im **msb Format** und die **Device ID** im **hex Format**.",
-    senseBox_LoRa_init_helpurl: "https://docs.sensebox.de/blockly/blockly-web-lora/",
-    senseBox_LoRa_init_otaa_tooltip: "Initialisiere die LoRa übertragung. Die Aktivierung erfolgt über OTAA. Registriere eine Application auf [thethingsnetwork](https://thethingsnetwork.com) und kopiere die **DEVICE EUI** und die **Application EUI** im **lsb Format** den **App Key** im **msb Format**.",
-}
\ No newline at end of file
+  senseBox_LoRa_cayenne_concentration_tip: "Sendet eine Konzentration in PPM",
+
+  senseBox_LoRa_message_tooltip: "Sende eine Nachricht über LoRa",
+  senseBox_LoRa_sensor_tip:
+    "Sende einen Sensorwert mit einer bestimmten Anzahl an Bytes",
+  senseBox_LoRa_init_abp_tooltip:
+    "Initialisiere die LoRa übertragung. Die Aktivierung erfolgt über ABP. Registriere eine Application auf [thethingsnetwork](https://thethingsnetwork.com) und kopiere den **Network Session Key** und den **App Session Key** im **msb Format** und die **Device ID** im **hex Format**.",
+  senseBox_LoRa_init_helpurl:
+    "https://docs.sensebox.de/blockly/blockly-web-lora/",
+  senseBox_LoRa_init_otaa_tooltip:
+    "Initialisiere die LoRa übertragung. Die Aktivierung erfolgt über OTAA. Registriere eine Application auf [thethingsnetwork](https://thethingsnetwork.com) und kopiere die **DEVICE EUI** und die **Application EUI** im **lsb Format** den **App Key** im **msb Format**.",
+
+  sensebox_lora_ttn_mapper_tip:
+    "Mit einem TTN Mapper kannst du die LoRa-Netzabdeckung in deiner Umgebung aufzeichnen. Die Daten werden dann auf [ttnmaper](https://ttnmapper.org) angezeigt.",
+};
diff --git a/src/components/Blockly/msg/en/sensebox-lora.js b/src/components/Blockly/msg/en/sensebox-lora.js
index a5c1b45..9eaf394 100644
--- a/src/components/Blockly/msg/en/sensebox-lora.js
+++ b/src/components/Blockly/msg/en/sensebox-lora.js
@@ -1,51 +1,50 @@
 export const LORA = {
-    /*
-     * LoRa Blöcke
-     */
+  /*
+   * LoRa Blöcke
+   */
 
+  senseBox_LoRa_connect: "Send to TTN",
+  senseBox_LoRa_device_id: "Device EUI (lsb)",
+  senseBox_LoRa_app_id: "Application EUI (lsb)",
+  senseBox_LoRa_app_key: "App Key (msb)",
+  senseBox_LoRa_nwskey_id: "Network Session Key (msb)",
+  senseBox_LoRa_appskey_id: "App Session Key (msb)",
+  senseBox_LoRa_devaddr_id: "Device Adress",
+  senseBox_LoRa_interval: "Transmission interval in minutes",
+  senseBox_measurement: "Messung",
+  senseBox_measurements: "Messungen",
 
-    senseBox_LoRa_connect: "Send to TTN",
-    senseBox_LoRa_device_id: "Device EUI (lsb)",
-    senseBox_LoRa_app_id: "Application EUI (lsb)",
-    senseBox_LoRa_app_key: "App Key (msb)",
-    senseBox_LoRa_nwskey_id: "Network Session Key (msb)",
-    senseBox_LoRa_appskey_id: "App Session Key (msb)",
-    senseBox_LoRa_devaddr_id: "Device Adress",
-    senseBox_LoRa_interval: "Transmission interval in minutes",
-    senseBox_measurement: "Messung",
-    senseBox_measurements: "Messungen",
-
-    senseBox_LoRa_send_message: "Send as Lora Message",
-    senseBox_LoRa_send_cayenne: "Send as Cayenne Payload",
-    senseBox_LoRa_cayenne_temperature: "Temperature",
-    senseBox_LoRa_cayenne_channel: "Channel",
-    senseBox_LoRa_cayenne_humidity: "Humidity",
-    senseBox_LoRa_cayenne_pressure: "Pressure",
-    senseBox_LoRa_cayenne_luminosity: "Luminosity",
-    senseBox_LoRa_cayenne_analog: "Analog Value",
-    senseBox_LoRa_cayenne_x: "X Value",
-    senseBox_LoRa_cayenne_y: "Y Value",
-    senseBox_LoRa_cayenne_z: "Z Value",
-    senseBox_LoRa_cayenne_lat: "Latitude",
-    senseBox_LoRa_cayenne_lng: "Longitude",
-    senseBox_LoRa_cayenne_alt: "Altitude",
-
-    senseBox_LoRa_cayenne_humidity_tip: "Send temperature with one decimal",
-    senseBox_LoRa_cayenne_tip: "Send Data as Cayenne Payload Format",
-    senseBox_LoRa_cayenne_gps_tip: "Send GPS Data",
-    senseBox_LoRa_cayenne_temperature_tip: "Send temperature with one decimal",
-    senseBox_LoRa_cayenne_pressure_tip: "Send pressure with one decimal",
-    senseBox_LoRa_cayenne_luminosity_tip: "Send luminosity without any decimals",
-    senseBox_LoRa_cayenne_analog_tip: "Send a value with one decimal",
-
-    senseBox_LoRa_message_tooltip: "Send a message with LoRa",
-    senseBox_LoRa_sensor_tip: "Send a value with a specific number of bytes",
-    senseBox_LoRa_init_abp_tooltip: "Initialize the LoRa transmission. The activation is done via ABP. Register an application on [thethingsnetwork](https://thethingsnetwork.com) and copy the **Network Session Key** and the **App Session Key** in **msb format** and the **Device ID** in **hex format**.",
-    senseBox_LoRa_init_helpurl: "https://en.docs.sensebox.de/blockly/blockly-web-lora/",
-
-    senseBox_LoRa_init_otaa_tooltip: "Initialize the LoRa transmission. The activation is done via OTAA. Register an application on [thethingsnetwork](https://thethingsnetwork.com) and copy the **DEVICE EUI** and the **Application EUI** in **lsb format** the **App Key** in **msb format**.",
-
-}
+  senseBox_LoRa_send_message: "Send as Lora Message",
+  senseBox_LoRa_send_cayenne: "Send as Cayenne Payload",
+  senseBox_LoRa_cayenne_temperature: "Temperature",
+  senseBox_LoRa_cayenne_channel: "Channel",
+  senseBox_LoRa_cayenne_humidity: "Humidity",
+  senseBox_LoRa_cayenne_pressure: "Pressure",
+  senseBox_LoRa_cayenne_luminosity: "Luminosity",
+  senseBox_LoRa_cayenne_analog: "Analog Value",
+  senseBox_LoRa_cayenne_x: "X Value",
+  senseBox_LoRa_cayenne_y: "Y Value",
+  senseBox_LoRa_cayenne_z: "Z Value",
+  senseBox_LoRa_cayenne_lat: "Latitude",
+  senseBox_LoRa_cayenne_lng: "Longitude",
+  senseBox_LoRa_cayenne_alt: "Altitude",
+  senseBox_LoRa_cayenne_concentration: "Concentration",
 
+  senseBox_LoRa_cayenne_humidity_tip: "Send temperature with one decimal",
+  senseBox_LoRa_cayenne_tip: "Send Data as Cayenne Payload Format",
+  senseBox_LoRa_cayenne_gps_tip: "Send GPS Data",
+  senseBox_LoRa_cayenne_temperature_tip: "Send temperature with one decimal",
+  senseBox_LoRa_cayenne_pressure_tip: "Send pressure with one decimal",
+  senseBox_LoRa_cayenne_luminosity_tip: "Send luminosity without any decimals",
+  senseBox_LoRa_cayenne_analog_tip: "Send a value with one decimal",
 
+  senseBox_LoRa_message_tooltip: "Send a message with LoRa",
+  senseBox_LoRa_sensor_tip: "Send a value with a specific number of bytes",
+  senseBox_LoRa_init_abp_tooltip:
+    "Initialize the LoRa transmission. The activation is done via ABP. Register an application on [thethingsnetwork](https://thethingsnetwork.com) and copy the **Network Session Key** and the **App Session Key** in **msb format** and the **Device ID** in **hex format**.",
+  senseBox_LoRa_init_helpurl:
+    "https://en.docs.sensebox.de/blockly/blockly-web-lora/",
 
+  senseBox_LoRa_init_otaa_tooltip:
+    "Initialize the LoRa transmission. The activation is done via OTAA. Register an application on [thethingsnetwork](https://thethingsnetwork.com) and copy the **DEVICE EUI** and the **Application EUI** in **lsb format** the **App Key** in **msb format**.",
+};
diff --git a/src/components/Blockly/toolbox/Toolbox.js b/src/components/Blockly/toolbox/Toolbox.js
index b0359eb..275af4d 100644
--- a/src/components/Blockly/toolbox/Toolbox.js
+++ b/src/components/Blockly/toolbox/Toolbox.js
@@ -376,6 +376,7 @@ class Toolbox extends React.Component {
             <Block type="sensebox_lora_cayenne_humidity" />
             <Block type="sensebox_lora_cayenne_pressure" />
             <Block type="sensebox_lora_cayenne_luminosity" />
+            <Block type="sensebox_lora_cayenne_concentration" />
             <Block type="sensebox_lora_cayenne_sensor" />
             <Block type="sensebox_lora_cayenne_accelerometer" />
             <Block type="sensebox_lora_cayenne_gps" />