diff --git a/templates/index.html b/templates/index.html
index 5bf2e24..c2186fa 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -396,9 +396,8 @@
                 params.push(`sensor_id=${sensorID}`);
             }
             
-            if (limit && limit !== 'all') {
-                params.push(`limit=${limit}`);
-            }
+            // 始终发送limit参数，即使是'all'
+            params.push(`limit=${limit}`);
             
             if (startDate) {
                 params.push(`start_date=${encodeURIComponent(startDate)}`);