diff --git a/code/quecthing.py b/code/quecthing.py
index 627c44b..33c352e 100644
--- a/code/quecthing.py
+++ b/code/quecthing.py
@@ -66,12 +66,12 @@ object_model = [
 
 object_model_struct = {
     'device_module_status': {
-        'net_error': 1,
-        'gps_error': 2,
-        'temp_sensor_error': 3,
-        'light_sensor_error': 4,
-        'move_sensor_error': 5,
-        'mike_error': 6,
+        'net': 1,
+        'location': 2,
+        'temp_sensor': 3,
+        'light_sensor': 4,
+        'move_sensor': 5,
+        'mike': 6,
     },
     'loc_method': {
         'gps': 1,
@@ -130,7 +130,7 @@ class QuecThing(object):
 
     def post_data(self, data):
         res = True
-        log.debug('quecIot post_data: %s' % str(data))
+        # log.debug('post_data: %s' % str(data))
         for k, v in data.items():
             if object_model_code.get(k) is not None:
                 # Event Data Format From object_mode_code
@@ -145,10 +145,8 @@ class QuecThing(object):
                                     nv[object_model_struct[k].get(ik)] = iv
                                 else:
                                     nv[ik] = iv
-                        log.debug('nv: %s' % str(nv))
                         v = nv
-                        log.debug('v: %s' % str(v))
-                    log.debug('k: %s, v: %s' % (k, v))
+                    # log.debug('k: %s, v: %s' % (k, v))
                     phymodelReport_res = quecIot.phymodelReport(1, {object_model_code.get(k): v})
                     if not phymodelReport_res:
                         res = False
diff --git a/code/settings.py b/code/settings.py
index 92beca7..7a3e60d 100644
--- a/code/settings.py
+++ b/code/settings.py
@@ -39,12 +39,12 @@ ALERTCODE = {
 }
 
 DEVICE_MODULE_STATUS = {
-    'net_error': 1,
-    'gps_error': 2,
-    'temp_sensor_error': 3,
-    'light_sensor_error': 4,
-    'move_sensor_error': 5,
-    'mike_error': 6,
+    'net': 1,
+    'location': 2,
+    'temp_sensor': 3,
+    'light_sensor': 4,
+    'move_sensor': 5,
+    'mike': 6,
 }
 
 DRIVE_BEHAVIOR_CODE = {
diff --git a/code/tracker.py b/code/tracker.py
index 2166a48..5f392d6 100644
--- a/code/tracker.py
+++ b/code/tracker.py
@@ -31,7 +31,6 @@ from usr.common import numiter
 from usr.common import Singleton
 from usr.mpower import PowerManage
 from usr.logging import getLogger
-# from usr.location import GPS
 from usr.location import Location
 from usr.timer import LEDTimer
 
@@ -64,8 +63,6 @@ class Tracker(Singleton):
         self.power_manage = PowerManage(self)
 
         self.led_timer = LEDTimer(self)
-        # self.energy = 100
-        # self.cenergy = -10
 
         if PowerKey is not None:
             self.power_key = PowerKey()
@@ -102,14 +99,6 @@ class Tracker(Singleton):
 
         current_settings = settings.settings.get()
 
-        # TODO: Test Energy
-        # if self.energy <= 10:
-        #     self.cenergy = 10
-        # if self.energy >= 100:
-        #     self.cenergy = -10
-        # self.energy = self.energy + self.cenergy
-        # energy = self.energy
-
         energy = self.battery.energy()
         if energy <= current_settings['app']['low_power_alert_threshold']:
             alert_data = self.get_alert_data(30002, {'local_time': self.get_local_time()})
@@ -144,35 +133,28 @@ class Tracker(Singleton):
 
     def get_device_check(self):
         alert_data = {}
-        device_module_status = []
+        device_module_status = {}
         alert_code = 20000
 
         net_check_res = self.check.net_check()
-        gps_check_res = self.check.gps_check()
+        loc_check_res = self.check.loc_check()
         sensor_check_res = self.check.sensor_check()
 
-        if net_check_res == (3, 1):
-            self.net_enable = True
-        else:
-            self.net_enable = False
-            device_module_status.append('net_error')
+        self.net_enable = True if net_check_res == (3, 1) else False
+        device_module_status['net'] = 1 if net_check_res == (3, 1) else 0
 
-        if not gps_check_res:
-            device_module_status.append('gps_error')
+        device_module_status['location'] = 1 if loc_check_res else 0
 
+        # TODO: Check Sensor.
         if not sensor_check_res:
-            # TODO: Need To Check What Sensor Error To Report.
             pass
 
-        if device_module_status:
-            self.running_led.period = 0.5
-        else:
-            self.running_led.period = 2
+        self.running_led.period = 0.5 if not (net_check_res == (3, 1) and loc_check_res and sensor_check_res) else 2
 
-        alert_info = {'device_module_status': {i: 1 if i in device_module_status else 0 for i in settings.DEVICE_MODULE_STATUS.keys()}}
-        if device_module_status:
+        if not (net_check_res == (3, 1) and loc_check_res and sensor_check_res):
             alert_data = self.get_alert_data(alert_code, {'local_time': self.get_local_time()})
-        alert_data.update(alert_info)
+
+        alert_data.update({'device_module_status': device_module_status})
 
         return alert_data
 
@@ -296,9 +278,8 @@ class SelfCheck(object):
         check_res = checknet.wait_network_connected(timeout)
         return check_res
 
-    def gps_check(self):
+    def loc_check(self):
         # return True if OK
-        # gps = GPS(settings.default_values_sys._gps_cfg)
         locator = Location()
 
         retry = 0