diff --git a/app/Http/Controllers/DeviceController.php b/app/Http/Controllers/DeviceController.php
index ea6b23a..33aee5f 100644
--- a/app/Http/Controllers/DeviceController.php
+++ b/app/Http/Controllers/DeviceController.php
@@ -518,7 +518,7 @@ class DeviceController extends Controller
                 if($device->type == DeviceType::WaterQuality){//如果是水质设备，则写死假数据
                     switch($column){
                         case 'chlorine':
-                            $data[$column][$key] = 0;
+                            $data[$column][$key] = 0.02;
                             break;
                         case 'conductivity':
                             $data[$column][$key] = 563 ;//电导率