diff --git a/config.json.dist b/config.json.dist
index 656c5d7..85bc5e4 100755
--- a/config.json.dist
+++ b/config.json.dist
@@ -27,13 +27,13 @@
     },
     {
       "connected": false,
-      "port": "ttyAMA2",
+      "port": "ttyAMA3",
       "name": "no2",
       "coefficient" : 1
     },
     {
       "connected": false,
-      "port": "ttyAMA1",
+      "port": "ttyAMA2",
       "name": "o3",
       "coefficient" : 1
     }
diff --git a/envea/read_value.py b/envea/read_value.py
index b102c49..1407172 100755
--- a/envea/read_value.py
+++ b/envea/read_value.py
@@ -5,13 +5,13 @@ import sys
 parameter = sys.argv[1:]  # Exclude the script name
 #print("Parameters received:")
 port='/dev/'+parameter[0]
-
-coefficient = 4
+coefficient = int(parameter[1])
+#coefficient = 4
 
 def read_cairsens(port, baudrate=9600, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE, databits=serial.EIGHTBITS, timeout=1):
     """
     Lit les données de la sonde CAIRSENS via UART.
-    /usr/bin/python3 /var/www/nebuleair_pro_4g/envea/read_value.py ttyAMA4
+    /usr/bin/python3 /var/www/nebuleair_pro_4g/envea/read_value.py ttyAMA4 4
 
     
     :param port: Le port série utilisé (ex: 'COM1' ou '/dev/ttyAMA0').
diff --git a/html/sensors.html b/html/sensors.html
index 6da4e67..c8631b1 100755
--- a/html/sensors.html
+++ b/html/sensors.html
@@ -290,7 +290,7 @@ window.onload = function() {
             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">
@@ -300,7 +300,7 @@ window.onload = function() {
                     <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}','${name}')">Get Data</button>
+                      <button class="btn btn-primary" onclick="getENVEA_values('${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>