diff --git a/roborock/code_mappings.py b/roborock/code_mappings.py
index e1675c8..9f0736e 100644
--- a/roborock/code_mappings.py
+++ b/roborock/code_mappings.py
@@ -78,6 +78,8 @@ class RoborockStateCode(RoborockEnum):
     mapping = 29
     egg_attack = 30
     patrol = 32
+    attaching_the_mop = 33  # on g20s ultra
+    detaching_the_mop = 34  # on g20s ultra
     charging_complete = 100
     device_offline = 101
     locked = 103
diff --git a/roborock/const.py b/roborock/const.py
index e15f086..78d869a 100644
--- a/roborock/const.py
+++ b/roborock/const.py
@@ -34,6 +34,7 @@
 ROBOROCK_QREVO_CURV = "roborock.vacuum.a135"
 ROBOROCK_Q8_MAX = "roborock.vacuum.a73"
 ROBOROCK_G10S_PRO = "roborock.vacuum.a26"
+ROBOROCK_G20S_Ultra = "roborock.vacuum.a143"  # cn saros_r10
 ROBOROCK_G10S = "roborock.vacuum.a46"
 ROBOROCK_G10 = "roborock.vacuum.a29"
 ROCKROBO_G10_SG = "roborock.vacuum.a30"  # Variant of the G10, has similar features as S7
@@ -58,6 +59,7 @@
 SUPPORTED_VACUUMS = [
     ROBOROCK_G10,
     ROBOROCK_G10S_PRO,
+    ROBOROCK_G20S_Ultra,
     ROBOROCK_Q5,
     ROBOROCK_Q7,
     ROBOROCK_Q7_MAX,
diff --git a/roborock/containers.py b/roborock/containers.py
index 4785033..afbe14b 100644
--- a/roborock/containers.py
+++ b/roborock/containers.py
@@ -73,6 +73,7 @@
     SENSOR_DIRTY_REPLACE_TIME,
     SIDE_BRUSH_REPLACE_TIME,
     STRAINER_REPLACE_TIME,
+    ROBOROCK_G20S_Ultra,
 )
 from .exceptions import RoborockException
 
@@ -665,6 +666,7 @@ class S8MaxvUltraStatus(Status):
     ROBOROCK_S8: S8Status,
     ROBOROCK_S8_PRO_ULTRA: S8ProUltraStatus,
     ROBOROCK_G10S_PRO: S7MaxVStatus,
+    ROBOROCK_G20S_Ultra: QRevoMasterStatus,
     ROBOROCK_P10: P10Status,
     # These likely are not correct,
     # but i am currently unable to do my typical reverse engineering/ get any data from users on this,