diff --git a/app/mifit_to_influxdb.py b/app/mifit_to_influxdb.py
                --- a/app/mifit_to_influxdb.py
                +++ b/app/mifit_to_influxdb.py
            
            
        
                                
                            #
                            @@ -232,6 +232,8 @@ def get_band_data(auth_info):                    
     
                                                    
                            #
                                 ''' Retrieve information for the band/watch associated with the account                    
     
                                                        
                                                        
                                                        
                                                        
                                                    
                            #
                                 print("Retrieveing mi band data")                    
     
                                                    
                            #
                                 band_data_url='https://api-mifit.huami.com/v1/data/band_data.json'                    
     
                                                        
                                                    
                            #
                            @@ -282,12 +284,22 @@ def get_band_data(auth_info):                    
     
                                                        
                                                    
                            #
                                             result_set = result_set + extract_sleep_data(ts, v, day)                    
     
                                                        
                                                        
                                                        
                                                    
                            #
                            +                "timestamp": int(ts) * 1000000000, # Convert to nanos                    
     
                                                        
                                                    
                            #
                            +                    "step_goal" : int(v),                    
     
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                        
                                                    
                            #
                            +    return result_set, serial                    
     
                                                        
                                                    
                            #
                            -def write_results(results):                    
     
                                                    
                            #
                            +def write_results(results, serial):                    
     
                                                    
                            #
                                 ''' Open a connection to InfluxDB and write the results in                    
     
                                                        
                                                    
                            #
                                 with InfluxDBClient(url=INFLUXDB_URL, token=INFLUXDB_TOKEN, org=INFLUXDB_ORG) as _client:                    
     
                                                    
                            #
                            @@ -297,7 +309,9 @@ def write_results(results):                    
     
                                                    
                            #
                                             p = Point(INFLUXDB_MEASUREMENT)                    
     
                                                    
                            #
                                             for tag in row['tags']:                    
     
                                                    
                            #
                                                 p = p.tag(tag, row['tags'][tag])                    
     
                                                        
                                                        
                                                    
                            #
                            +                p = p.tag("serial_num", serial)                    
     
                                                        
                                                    
                            #
                                             for field in row['fields']:                    
     
                                                    
                            #
                                                 p = p.field(field, row['fields'][field])                    
     
                                                        
                                                    
                            #
                            @@ -318,6 +332,6 @@ if __name__== "__main__":                    
     
                                                    
                            #
                                 parser.add_argument("--password",required=True,help="password for login")                    
     
                                                    
                            #
                                 args=parser.parse_args()                    
     
                                                    
                            #
                                 auth_info=mifit_auth_email(args.email,args.password)                    
     
                                                    
                            #
                            -    result_set = get_band_data(auth_info)                    
     
                                                    
                            #
                            +    result_set, serial = get_band_data(auth_info)                    
     
                                                        
                                                    
                            #
                            -    write_results(result_set)                    
     
                                                    
                            #
                            +    write_results(result_set, serial)