diff --git a/NPM/get_data_modbus_v3.py b/NPM/get_data_modbus_v3.py
index c972bb6..120688a 100755
--- a/NPM/get_data_modbus_v3.py
+++ b/NPM/get_data_modbus_v3.py
@@ -40,6 +40,9 @@ import crcmod
 import sqlite3
 import time
 
+# Dry-run mode: print JSON output without writing to database
+dry_run = "--dry-run" in sys.argv
+
 # Connect to the SQLite database
 conn = sqlite3.connect("/var/www/nebuleair_pro_4g/sqlite/sensors.db")
 cursor = conn.cursor()
@@ -207,15 +210,29 @@ except Exception as e:
     # Variables already set to -1 at the beginning
 
 finally:
-    # Always save data to database, even if all values are -1
-    cursor.execute('''
-    INSERT INTO data_NPM_5channels (timestamp,PM_ch1, PM_ch2, PM_ch3, PM_ch4, PM_ch5) VALUES (?,?,?,?,?,?)'''
-    , (rtc_time_str, channel_1, channel_2, channel_3, channel_4, channel_5))
+    if dry_run:
+        # Print JSON output without writing to database
+        result = {
+            "PM1": pm1_10s,
+            "PM25": pm25_10s,
+            "PM10": pm10_10s,
+            "temperature": temperature,
+            "humidity": relative_humidity,
+            "npm_status": npm_status,
+            "npm_status_hex": f"0x{npm_status:02X}"
+        }
+        print(json.dumps(result))
+    else:
+        # Always save data to database, even if all values are 0
+        cursor.execute('''
+        INSERT INTO data_NPM_5channels (timestamp,PM_ch1, PM_ch2, PM_ch3, PM_ch4, PM_ch5) VALUES (?,?,?,?,?,?)'''
+        , (rtc_time_str, channel_1, channel_2, channel_3, channel_4, channel_5))
 
-    cursor.execute('''
-    INSERT INTO data_NPM (timestamp,PM1, PM25, PM10, temp_npm, hum_npm, npm_status) VALUES (?,?,?,?,?,?,?)'''
-    , (rtc_time_str, pm1_10s, pm25_10s, pm10_10s, temperature, relative_humidity, npm_status))
+        cursor.execute('''
+        INSERT INTO data_NPM (timestamp,PM1, PM25, PM10, temp_npm, hum_npm, npm_status) VALUES (?,?,?,?,?,?,?)'''
+        , (rtc_time_str, pm1_10s, pm25_10s, pm10_10s, temperature, relative_humidity, npm_status))
+
+        # Commit and close the connection
+        conn.commit()
 
-    # Commit and close the connection
-    conn.commit()
     conn.close()
\ No newline at end of file
diff --git a/VERSION b/VERSION
index 26ca594..4cda8f1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.5.1
+1.5.2
diff --git a/changelog.json b/changelog.json
index 0e3e75d..646afc5 100644
--- a/changelog.json
+++ b/changelog.json
@@ -1,5 +1,25 @@
 {
   "versions": [
+    {
+      "version": "1.5.2",
+      "date": "2026-03-18",
+      "changes": {
+        "features": [
+          "Page capteurs: lecture NPM via get_data_modbus_v3.py --dry-run (meme script que le timer)",
+          "Page capteurs: affichage temperature et humidite interne du NPM",
+          "Page capteurs: decodage npm_status avec flags d'erreur individuels"
+        ],
+        "improvements": [
+          "NPM get_data_modbus_v3.py: mode --dry-run (print JSON sans ecriture en base)",
+          "Page capteurs: status NPM affiche en vert (OK) ou orange/rouge (erreurs decodees)"
+        ],
+        "fixes": [
+          "Page capteurs: suppression unite ug/m3 sur le champ message/status"
+        ],
+        "compatibility": []
+      },
+      "notes": "La page capteurs utilise maintenant le meme script Modbus que le timer systemd, en mode dry-run pour eviter les conflits d'ecriture SQLite. Le status NPM est decode bit par bit."
+    },
     {
       "version": "1.5.1",
       "date": "2026-03-18",
diff --git a/html/launcher.php b/html/launcher.php
index 6557b3c..ccb19af 100755
--- a/html/launcher.php
+++ b/html/launcher.php
@@ -805,8 +805,7 @@ if ($type == "reboot") {
 }
 
 if ($type == "npm") {
-    $port=$_GET['port'];
-    $command = 'sudo /usr/bin/python3 /var/www/nebuleair_pro_4g/NPM/get_data.py ' . $port;
+    $command = 'sudo /usr/bin/python3 /var/www/nebuleair_pro_4g/NPM/get_data_modbus_v3.py --dry-run';
     $output = shell_exec($command);
     echo $output;
 }
diff --git a/html/sensors.html b/html/sensors.html
index 3729264..1d0367f 100755
--- a/html/sensors.html
+++ b/html/sensors.html
@@ -117,54 +117,79 @@
       $("#loading_" + port).show();
 
       $.ajax({
-        url: 'launcher.php?type=npm&port=' + port,
-        dataType: 'json', // Specify that you expect a JSON response
-        method: 'GET', // Use GET or POST depending on your needs
+        url: 'launcher.php?type=npm',
+        dataType: 'json',
+        method: 'GET',
         success: function (response) {
           console.log(response);
           const tableBody = document.getElementById("data-table-body_" + port);
           tableBody.innerHTML = "";
 
           $("#loading_" + port).hide();
-          // Create an array of the desired keys
-          const keysToShow = ["PM1", "PM25", "PM10", "message"];
-          // Error messages mapping
-          const errorMessages = {
-            "notReady": "Sensor is not ready",
-            "fanError": "Fan malfunction detected",
-            "laserError": "Laser malfunction detected",
-            "heatError": "Heating system error",
-            "t_rhError": "Temperature/Humidity sensor error",
-            "memoryError": "Memory failure detected",
-            "degradedState": "Sensor in degraded state"
-          };
-          // Add only the specified elements to the table
-          keysToShow.forEach(key => {
-            if (response[key] !== undefined) { // Check if the key exists in the response
-              const value = response[key];
+
+          // PM values
+          const pmKeys = ["PM1", "PM25", "PM10"];
+          pmKeys.forEach(key => {
+            if (response[key] !== undefined) {
               $("#data-table-body_" + port).append(`
-                                    <tr>
-                                        <td>${key}</td>
-                                        <td>${value} µg/m³</td>
-                                    </tr>
-                                `);
+                <tr>
+                  <td>${key}</td>
+                  <td>${response[key]} µg/m³</td>
+                </tr>
+              `);
             }
           });
 
-          // Check for errors and add them to the table
-          Object.keys(errorMessages).forEach(errorKey => {
-            if (response[errorKey] === 1) {
-              $("#data-table-body_" + port).append(`
-                                    <tr class="error-row">
-                                        <td><b>${errorKey}</b></td>
-                                        <td style="color: red;">⚠ ${errorMessages[errorKey]}</td>
-                                    </tr>
-                                `);
-            }
-          });
+          // Temperature & humidity
+          if (response.temperature !== undefined) {
+            $("#data-table-body_" + port).append(`
+              <tr><td>Temperature</td><td>${response.temperature} °C</td></tr>
+            `);
+          }
+          if (response.humidity !== undefined) {
+            $("#data-table-body_" + port).append(`
+              <tr><td>Humidity</td><td>${response.humidity} %</td></tr>
+            `);
+          }
+
+          // NPM status decoded
+          if (response.npm_status !== undefined) {
+            const status = response.npm_status;
+            const statusText = status === 0 ? "OK" : response.npm_status_hex;
+            const statusColor = status === 0 ? "green" : "orange";
+            $("#data-table-body_" + port).append(`
+              <tr>
+                <td>Status</td>
+                <td style="color: ${statusColor}; font-weight: bold;">${statusText}</td>
+              </tr>
+            `);
+
+            // Decode individual error bits
+            const statusFlags = {
+              0x01: "Sleep mode",
+              0x02: "Degraded mode",
+              0x04: "Not ready",
+              0x08: "Heater error",
+              0x10: "THP sensor error",
+              0x20: "Fan error",
+              0x40: "Memory error",
+              0x80: "Laser error"
+            };
+            Object.entries(statusFlags).forEach(([mask, label]) => {
+              if (status & mask) {
+                $("#data-table-body_" + port).append(`
+                  <tr class="error-row">
+                    <td></td>
+                    <td style="color: red;">⚠ ${label}</td>
+                  </tr>
+                `);
+              }
+            });
+          }
         },
         error: function (xhr, status, error) {
           console.error('AJAX request failed:', status, error);
+          $("#loading_" + port).hide();
         }
       });
     }