diff --git a/src/format.html b/src/format.html
index 1e6350e..9efbb93 100644
--- a/src/format.html
+++ b/src/format.html
@@ -850,6 +850,21 @@ <h4 id="sensor-data">Sensor data</h4>
           <code>mL</code>
         </td>
       </tr>
+      <tr>
+        <td>
+          <code>0x55</code>
+        </td>
+        <td>volume storage</td>
+        <td>uint32 (4&nbsp;bytes)</td>
+        <td>0.001</td>
+        <td>
+          <code>5587562A01</code>
+        </td>
+        <td>19551.879</td>
+        <td>
+          <code>L</code>
+        </td>
+      </tr>
       <tr>
         <td>
           <code>0x49</code>