diff --git a/src/ha.h b/src/ha.h
index c57e442..c526e6d 100644
--- a/src/ha.h
+++ b/src/ha.h
@@ -373,7 +373,12 @@ namespace Ha {
             StateConfig::buildConfig(jsonDoc);
             if (unitMeasure) jsonDoc["unit_of_measurement"] = unitMeasure;
             if (valueTemplate) jsonDoc["value_template"] = valueTemplate;
-            jsonDoc["suggested_display_precision"] = precision;
+            if (isNumericSensor()) jsonDoc["suggested_display_precision"] = precision;
+        }
+
+    private:
+        bool isNumericSensor() {
+            return deviceClass || unitMeasure;
         }
     };