diff --git a/apps/base/iot/dashboards/room.json b/apps/base/iot/dashboards/room.json
index ef695823caedaf62dbf73207386da3787a4acf07..55c0f651c86d291976c4f831eb68def62fd58a3b 100644
--- a/apps/base/iot/dashboards/room.json
+++ b/apps/base/iot/dashboards/room.json
@@ -148,7 +148,7 @@
             "uid": ""
           },
           "editorMode": "code",
-          "expr": "last_over_time(shellyht_humidity_percent{name=\"$sensor\"}[24h])",
+          "expr": "avg(last_over_time(shellyht_humidity_percent{name=\"$sensor\"}[24h])) by (name)",
           "legendFormat": "__auto",
           "range": true,
           "refId": "A"
@@ -218,7 +218,7 @@
             "uid": ""
           },
           "editorMode": "code",
-          "expr": "last_over_time(shellyht_temperature_celsius{name=\"$sensor\"}[24h])",
+          "expr": "avg(last_over_time(shellyht_temperature_celsius{name=\"$sensor\"}[24h])) by (name)",
           "legendFormat": "__auto",
           "range": true,
           "refId": "A"
@@ -344,7 +344,7 @@
             "uid": ""
           },
           "editorMode": "code",
-          "expr": "last_over_time(shellyht_temperature_celsius{name=\"$sensor\"}[24h])",
+          "expr": "avg(last_over_time(shellyht_temperature_celsius{name=\"$sensor\"}[24h])) by (name)",
           "legendFormat": "Temperature",
           "range": true,
           "refId": "A"
@@ -355,7 +355,7 @@
             "uid": ""
           },
           "editorMode": "code",
-          "expr": "last_over_time(shellyht_humidity_percent{name=\"$sensor\"}[24h])",
+          "expr": "avg(last_over_time(shellyht_humidity_percent{name=\"$sensor\"}[24h])) by (name)",
           "hide": false,
           "legendFormat": "Humidity",
           "range": true,
@@ -478,7 +478,7 @@
           },
           "editorMode": "code",
           "exemplar": false,
-          "expr": "last_over_time(shellyht_humidity_percent[24h])",
+          "expr": "avg(last_over_time(shellyht_humidity_percent[24h])) by (name)",
           "instant": false,
           "interval": "",
           "legendFormat": "{{name}}",
@@ -577,7 +577,7 @@
             "uid": ""
           },
           "editorMode": "code",
-          "expr": "last_over_time(shellyht_temperature_celsius[24h])",
+          "expr": "avg(last_over_time(shellyht_temperature_celsius[24h])) by (name)",
           "legendFormat": "{{name}}",
           "range": true,
           "refId": "A"