diff --git a/hardware/opentrons_hardware/firmware_bindings/constants.py b/hardware/opentrons_hardware/firmware_bindings/constants.py
index 372323b1385..61387ea798d 100644
--- a/hardware/opentrons_hardware/firmware_bindings/constants.py
+++ b/hardware/opentrons_hardware/firmware_bindings/constants.py
@@ -145,6 +145,7 @@ class MessageId(int, Enum):
     instrument_info_request = 0x306
     pipette_info_response = 0x307
     gripper_info_response = 0x308
+    hepauv_info_response = 0x309
     set_serial_number = 0x30A
     get_motor_usage_request = 0x30B
     get_motor_usage_response = 0x30C
diff --git a/hardware/opentrons_hardware/firmware_bindings/messages/message_definitions.py b/hardware/opentrons_hardware/firmware_bindings/messages/message_definitions.py
index 8417309ca27..9af02770745 100644
--- a/hardware/opentrons_hardware/firmware_bindings/messages/message_definitions.py
+++ b/hardware/opentrons_hardware/firmware_bindings/messages/message_definitions.py
@@ -898,3 +898,12 @@ class GetMotorUsageResponse(BaseMessage):
     message_id: Literal[
         MessageId.get_motor_usage_response
     ] = MessageId.get_motor_usage_response
+
+
+@dataclass
+class HepaUVInfoResponse(BaseMessage):  # noqa: D101
+    payload: payloads.HepaUVInfoResponsePayload
+    payload_type: Type[
+        payloads.HepaUVInfoResponsePayload
+    ] = payloads.HepaUVInfoResponsePayload
+    message_id: Literal[MessageId.hepauv_info_response] = MessageId.hepauv_info_response
diff --git a/hardware/opentrons_hardware/firmware_bindings/messages/payloads.py b/hardware/opentrons_hardware/firmware_bindings/messages/payloads.py
index 62244449d0e..650c5d1e30c 100644
--- a/hardware/opentrons_hardware/firmware_bindings/messages/payloads.py
+++ b/hardware/opentrons_hardware/firmware_bindings/messages/payloads.py
@@ -627,3 +627,11 @@ def build(cls, data: bytes) -> "GetMotorUsageResponsePayload":
         return inst
 
     usage_elements: List[MotorUsageTypeField]
+
+
+@dataclass(eq=False)
+class HepaUVInfoResponsePayload(EmptyPayload):
+    """A response carrying data about an attached gripper."""
+
+    model: utils.UInt16Field
+    serial: SerialDataCodeField