diff --git a/solax/inverter.py b/solax/inverter.py
index 871cb03..f3abde0 100644
--- a/solax/inverter.py
+++ b/solax/inverter.py
@@ -294,7 +294,9 @@ class X1(InverterPost):
                 [vol.Coerce(float)],
                 vol.Any(
                     vol.Length(min=102, max=102),
-                    vol.Length(min=103, max=103)),
+                    vol.Length(min=103, max=103),
+                    vol.Length(min=107, max=107),
+                ),
             )
         ),
         vol.Required('Information'): vol.Schema(
diff --git a/tests/fixtures.py b/tests/fixtures.py
index bab98a6..e058eba 100644
--- a/tests/fixtures.py
+++ b/tests/fixtures.py
@@ -84,6 +84,32 @@
                     1, 1.10, 1.02, 1.09, 1.02]
 }
 
+X1_HYBRID_G3_2X_MPPT_RESPONSE = {
+    "type": "X1-Hybiyd-G3",
+    "SN": "XXXXXXXXXX",
+    "ver": "2.033.20",
+    "Data": [0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
+             10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+             20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+             30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+             40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+             50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+             60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
+             70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
+             80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
+             90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+             100, 101, 102, 103, 104, 105, 106],
+    "Information": [3.000, 3, "X1-Hybiyd-G3", "YYYYYYYYYYYYYY",
+                    1, 3.11, 0.00, 3.13, 1.05],
+    "battery": {
+        "brand": "0",
+        "masterVer": "0.00",
+        "slaveNum": "0",
+        "slaveVer": [0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00, 0.00],
+        "slaveType": [0, 0, 0, 0, 0, 0, 0, 0]
+    }
+}
+
 X3_HYBRID_G3_RESPONSE = {
     "type": "X3-Hybiyd-G3",
     "SN": "XXXXXXX",
@@ -300,6 +326,14 @@ def simple_http_fixture(httpserver):
         inverter=inverter.X1,
         values=X1_VALUES,
     ),
+    InverterUnderTest(
+        uri="/",
+        method='POST',
+        query_string='optType=ReadRealTimeData',
+        response=X1_HYBRID_G3_2X_MPPT_RESPONSE,
+        inverter=inverter.X1,
+        values=X1_VALUES,
+    )
 ]