diff --git a/aioecowitt/sensor.py b/aioecowitt/sensor.py
index 035988b..9b7af29 100644
--- a/aioecowitt/sensor.py
+++ b/aioecowitt/sensor.py
@@ -449,4 +449,5 @@ class EcoWittMapping:
         "Yearly Rain Rate Piezo", EcoWittSensorTypes.RAIN_COUNT_MM
     ),
     "runtime": EcoWittMapping("Runtime", EcoWittSensorTypes.INTERNAL),
+    "interval": EcoWittMapping("Interval", EcoWittSensorTypes.INTERNAL),
 }