diff --git a/tests/config13/wmbusmeters.conf b/tests/config13/wmbusmeters.conf
new file mode 100644
index 0000000..451b76b
--- /dev/null
+++ b/tests/config13/wmbusmeters.conf
@@ -0,0 +1,4 @@
+format=fields
+device=rtlwmbus
+selectfields=total_m3,gurka_m3,sum_c
+calculate_gurka_m3=total_m3+55l
\ No newline at end of file
diff --git a/tests/config13/wmbusmeters.d/Vatten b/tests/config13/wmbusmeters.d/Vatten
new file mode 100644
index 0000000..cfb8eee
--- /dev/null
+++ b/tests/config13/wmbusmeters.d/Vatten
@@ -0,0 +1,4 @@
+name=Vatten
+driver=multical21
+id=76348799
+calculate_sum_c=flow_temperature_c+external_temperature_c
\ No newline at end of file