diff --git a/app/Services/BiAngDeviceLogService.php b/app/Services/BiAngDeviceLogService.php
index 942aece..c1dfef7 100644
--- a/app/Services/BiAngDeviceLogService.php
+++ b/app/Services/BiAngDeviceLogService.php
@@ -176,7 +176,11 @@ class BiAngDeviceLogService
                     };
 
                     if ($attribute) {
-                        $attributes[$attribute] = $v;
+                        if ($attribute == 'moment_rainfall') {
+                            $attributes[$attribute] = bcadd($attributes[$attribute] ?? '0.00', $v, 2);
+                        } else {
+                            $attributes[$attribute] = $v;
+                        }
                     }
                 }
             }