diff --git a/lib/Hoymiles/src/inverters/HMS_2CH.cpp b/lib/Hoymiles/src/inverters/HMS_2CH.cpp
index 29e84280..5dd8c5f2 100644
--- a/lib/Hoymiles/src/inverters/HMS_2CH.cpp
+++ b/lib/Hoymiles/src/inverters/HMS_2CH.cpp
@@ -44,7 +44,7 @@ bool HMS_2CH::isValidSerial(const uint64_t serial)
 {
     // serial >= 0x114400000000 && serial <= 0x1144ffffffff
     uint16_t preSerial = (serial >> 32) & 0xffff;
-    return preSerial == 0x1144 || preSerial == 0x1143 || preSerial == 0x1410;
+    return preSerial == 0x1144 || preSerial == 0x1143 || preSerial == 0x1410 || preSerial == 0x114a;
 }
 
 String HMS_2CH::typeName() const
diff --git a/lib/Hoymiles/src/inverters/README.md b/lib/Hoymiles/src/inverters/README.md
index 26ee4334..3921f19d 100644
--- a/lib/Hoymiles/src/inverters/README.md
+++ b/lib/Hoymiles/src/inverters/README.md
@@ -7,7 +7,7 @@
 | HM_4CH        | HM-1000/1200/1500-4T        | 1161             |
 | HMS_1CH       | HMS-300/350/400/450/500-1T  | 1124             |
 | HMS_1CHv2     | HMS-450/500-1T v2           | 1125, 1400       |
-| HMS_2CH       | HMS-600/700/800/900/1000-2T | 1143, 1144, 1410 |
+| HMS_2CH       | HMS-600/700/800/900/1000-2T | 1143, 1144, 1410, 114a |
 | HMS_4CH       | HMS-1600/1800/2000-4T       | 1164, 1420       |
 | HMT_4CH       | HMT-1600/1800/2000-4T       | 1361             |
 | HMT_6CH       | HMT-1800/2250-6T            | 1382             |