diff --git a/html/launcher.php b/html/launcher.php
index e862de0..d77cbd2 100755
--- a/html/launcher.php
+++ b/html/launcher.php
@@ -177,6 +177,12 @@ if ($type == "npm") {
     echo $output;
 }
 
+if ($type == "mhz19") {
+    $command = '/usr/bin/python3 /var/www/moduleair_pro_4g/MH-Z19/get_data.py ttyAMA4';
+    $output = shell_exec($command);
+    echo $output;
+}
+
 if ($type == "envea") {
     $port=$_GET['port'];
     $name=$_GET['name'];
diff --git a/html/sensors.html b/html/sensors.html
index 695e263..eadfeec 100755
--- a/html/sensors.html
+++ b/html/sensors.html
@@ -213,7 +213,48 @@ function getNoise_values(){
                     }
             });
         }
+
+
+        function getco2_values() {
+    console.log("Data from UART 4:");
+    $("#loading_co2").show();
+
+    $.ajax({
+        url: 'launcher.php?type=mhz19',
+        dataType: 'JSON',
+        method: 'GET',
+        success: function(data) { // No need to parse JSON manually
+            console.log(data); // Debugging: Check if data is received correctly
+
+            const tableBody = document.getElementById("data-table-body_co2");
+            tableBody.innerHTML = ""; // Clear previous data
+            $("#loading_co2").hide();
+
+            // Ensure "CO2" exists in the response
+            if (data.hasOwnProperty("CO2")) {
+                const value = data["CO2"];
+                const unit = "ppm"; // CO2 is always in ppm
+
+                // Append the data row to the table
+                $("#data-table-body_co2").append(`
+                    <tr>
+                        <td>CO2</td>
+                        <td>${value} ${unit}</td>
+                    </tr>
+                `);
+            } else {
+                console.error("CO2 data not found in response:", data);
+            }
+        },
+        error: function(xhr, status, error) {
+            console.error('AJAX request failed:', status, error);
+            $("#loading_co2").hide();
+        }
+    });
+}
+  
         
+
 function getBME280_values(){
       console.log("Data from I2C BME280:");
       $("#loading_BME280").show();
@@ -318,32 +359,7 @@ window.onload = function() {
               container.innerHTML += cardHTML; // Ajouter la carte au conteneur
             });
 
-            //creates ENVEA cards
-            const ENVEA_sensors = data.envea_sondes.filter(sonde => sonde.connected); // Filter only connected sondes
-
-            ENVEA_sensors.forEach((sensor, index) => {
-                const port = sensor.port; // Port from the sensor object
-                const name = sensor.name; // Port from the sensor object
-                const coefficient = sensor.coefficient;
-              const cardHTML = `
-                <div class="col-sm-3">
-                  <div class="card">
-                    <div class="card-header">
-                      Port UART ${port.replace('ttyAMA', '')}
-                    </div>
-                    <div class="card-body">
-                      <h5 class="card-title">Sonde Envea ${name}</h5>
-                      <p class="card-text">Capteur gas.</p>
-                      <button class="btn btn-primary" onclick="getENVEA_values('${port}','${name}','${coefficient}')">Get Data</button>
-                      <div id="loading_envea${name}" class="spinner-border spinner-border-sm" style="display: none;" role="status"></div>
-                      <table class="table table-striped-columns">
-                        <tbody id="data-table-body_envea${name}"></tbody>
-                      </table>
-                    </div>
-                  </div>
-                </div>`;
-              container.innerHTML += cardHTML; // Ajouter la carte au conteneur
-            });
+            
 
             //creates i2c BME280 card
             if (data.i2c_BME) {
@@ -395,6 +411,30 @@ window.onload = function() {
               container.innerHTML += i2C_HTML; // Add the I2C card if condition is met
             }
 
+            //creates CO2 card
+            if (data.CO2_serial) {
+              const MH_Z19 = `
+                <div class="col-sm-3">
+                  <div class="card">
+                    <div class="card-header">
+                      Port UART 4
+                    </div>
+                    <div class="card-body">
+                      <h5 class="card-title">CO2 Sensor</h5>
+                      <p class="card-text">Capteur de Dioxyde de carbone</p>
+                      <button class="btn btn-primary mb-1" onclick="getco2_values()">Get Data</button>
+                      <br>
+                      <div id="loading_co2" class="spinner-border spinner-border-sm" style="display: none;" role="status"></div>
+                      <table class="table table-striped-columns">
+                        <tbody id="data-table-body_co2"></tbody>
+                      </table>
+                    </div>
+                  </div>
+                </div>`;
+              
+              container.innerHTML += MH_Z19; // Add the I2C card if condition is met
+            }
+
         })
         .catch(error => console.error('Error loading config.json:', error));
       }