diff --git a/papi/sqlapp/database.py b/papi/sqlapp/database.py
index 53d97b6..9decfa0 100644
--- a/papi/sqlapp/database.py
+++ b/papi/sqlapp/database.py
@@ -2,6 +2,7 @@ from sqlalchemy import create_engine
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.orm import sessionmaker
 
+
 SQLALCHEMY_DATABASE_URL = "sqlite:///./sql_app.db"
 # SQLALCHEMY_DATABASE_URL = "postgresql://user:password@postgresserver/db"
 
diff --git a/papi/sqlapp/models.py b/papi/sqlapp/models.py
index e69de29..691e422 100644
--- a/papi/sqlapp/models.py
+++ b/papi/sqlapp/models.py
@@ -0,0 +1,19 @@
+from sqlalchemy import Boolean, Column, ForeignKey, Integer, String, JSON
+from sqlalchemy.orm import relationship
+
+from .database import Base
+
+
+class Sonde(Base):
+    __tablename__ = "sonde"
+    id = Column(Integer, primary_key=True, index=True)
+    nom = Column(String, index=True)
+    identifiant = Column(String, index=True, unique=True, nullable=False)
+    # mesures = relationship("Mesure")
+
+
+class Mesure(Base):
+    __tablename__ == "mesure"
+    id = Column(Integer, primary_key=True, index=True)
+    # sonde_id = Column(Integer, Foreignkey("sonde.id")
+    content = Column(JSON, nullable=False)