diff --git a/README.md b/README.md
index c5465db..8e65353 100644
--- a/README.md
+++ b/README.md
@@ -507,6 +507,47 @@ You'll need Arduino desftop app 1.8.9 or later.
             <td></td>
             <td></td>
         </tr>
+        <tr>
+           <td>MQ303A - HANWEI</td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td></td>
+            <td>-2.3543</td>
+            <td>1.144</td>
+            <td>-2.4338</td>
+            <td>0.7558</td>
+            <td>-2.5597</td>
+            <td>0.4436</td>
+        </tr>
         <tr>
            <td>MQ309A - HANWEI</td>
             <td>-2.1311</td>