diff --git a/CO2_Gadget_Preferences.h b/CO2_Gadget_Preferences.h
index ae9add16..d5e1b2a5 100644
--- a/CO2_Gadget_Preferences.h
+++ b/CO2_Gadget_Preferences.h
@@ -77,22 +77,60 @@ int getCO2GadgetMinorVersion() {
 #endif
 }
 
+// Function to extract the revision number as an integer
+// int getCO2GadgetRevisionNumber() {
+// #ifdef CO2_GADGET_REV
+//     // Find the position of the first dash
+//     int dashIndex = 0;
+//     while (CO2_GADGET_REV[dashIndex] != '-' && CO2_GADGET_REV[dashIndex] != '\0' && dashIndex < strlen(CO2_GADGET_REV)) {
+//         dashIndex++;
+//     }
+//     // Check if no dash was found or if the string is empty
+//     if (CO2_GADGET_REV[dashIndex] == '\0' || dashIndex == 0) {
+//         return -1;  // Sentinel value indicating error
+//     }
+//     // Extract the substring before the first dash and convert it to an integer
+//     char revNumberStr[dashIndex + 1];  // Add 1 for the null terminator
+//     strncpy(revNumberStr, CO2_GADGET_REV, dashIndex);
+//     revNumberStr[dashIndex] = '\0';  // Null-terminate the string
+// #ifdef DEBUG_PREFERENCES
+//     Serial.println("-->[PREF] Revision number: " + String(revNumberStr));
+// #endif
+//     return atoi(revNumberStr);
+// #else
+//     return -1;  // Sentinel value indicating error
+// #endif
+// }
+
 // Function to extract the revision number as an integer
 int getCO2GadgetRevisionNumber() {
 #ifdef CO2_GADGET_REV
-    // Find the position of the first dash
-    int dashIndex = 0;
-    while (CO2_GADGET_REV[dashIndex] != '-' && CO2_GADGET_REV[dashIndex] != '\0' && dashIndex < strlen(CO2_GADGET_REV)) {
-        dashIndex++;
+    // Find the position of the second dot
+    int secondDotIndex = 0;
+    int dotCount = 0;
+    while (CO2_GADGET_REV[secondDotIndex] != '\0') {
+        if (CO2_GADGET_REV[secondDotIndex] == '.') {
+            dotCount++;
+            if (dotCount == 2) {
+                break;
+            }
+        }
+        secondDotIndex++;
     }
-    // Check if no dash was found or if the string is empty
-    if (CO2_GADGET_REV[dashIndex] == '\0' || dashIndex == 0) {
+    // If the second dot is not found or the string ends right after the second dot, return error
+    if (CO2_GADGET_REV[secondDotIndex] == '\0' || CO2_GADGET_REV[secondDotIndex + 1] == '\0') {
         return -1;  // Sentinel value indicating error
     }
-    // Extract the substring before the first dash and convert it to an integer
-    char revNumberStr[dashIndex + 1];  // Add 1 for the null terminator
-    strncpy(revNumberStr, CO2_GADGET_REV, dashIndex);
-    revNumberStr[dashIndex] = '\0';  // Null-terminate the string
+    // Find the position of the dash or the end of the version string
+    int dashIndex = secondDotIndex + 1;
+    while (CO2_GADGET_REV[dashIndex] != '-' && CO2_GADGET_REV[dashIndex] != '\0') {
+        dashIndex++;
+    }
+    // Extract the substring between the second dot and the dash or the end of the string
+    int revisionLength = dashIndex - secondDotIndex - 1;
+    char revNumberStr[revisionLength + 1];  // Add 1 for the null terminator
+    strncpy(revNumberStr, CO2_GADGET_REV + secondDotIndex + 1, revisionLength);
+    revNumberStr[revisionLength] = '\0';  // Null-terminate the string
 #ifdef DEBUG_PREFERENCES
     Serial.println("-->[PREF] Revision number: " + String(revNumberStr));
 #endif