diff --git a/openwisp_monitoring/device/base/models.py b/openwisp_monitoring/device/base/models.py
index b3e3f5d4c..ec7b39b06 100644
--- a/openwisp_monitoring/device/base/models.py
+++ b/openwisp_monitoring/device/base/models.py
@@ -25,7 +25,7 @@
 
 from ...db import device_data_query, timeseries_db
 from ...monitoring.signals import threshold_crossed
-from ...monitoring.tasks import timeseries_write
+from ...monitoring.tasks import _timeseries_write
 from ...settings import CACHE_TIMEOUT
 from .. import settings as app_settings
 from .. import tasks
@@ -275,7 +275,7 @@ def save_data(self, time=None):
         self._transform_data()
         time = time or now()
         options = dict(tags={'pk': self.pk}, timestamp=time, retention_policy=SHORT_RP)
-        timeseries_write(name=self.__key, values={'data': self.json()}, **options)
+        _timeseries_write(name=self.__key, values={'data': self.json()}, **options)
         cache_key = get_device_cache_key(device=self, context='current-data')
         # cache current data to allow getting it without querying the timeseries DB
         cache.set(
diff --git a/openwisp_monitoring/monitoring/base/models.py b/openwisp_monitoring/monitoring/base/models.py
index f26aec6b7..1a3cdc318 100644
--- a/openwisp_monitoring/monitoring/base/models.py
+++ b/openwisp_monitoring/monitoring/base/models.py
@@ -35,7 +35,7 @@
 )
 from ..exceptions import InvalidChartConfigException, InvalidMetricConfigException
 from ..signals import pre_metric_write, threshold_crossed
-from ..tasks import delete_timeseries, timeseries_batch_write, timeseries_write
+from ..tasks import _timeseries_batch_write, _timeseries_write, delete_timeseries
 
 User = get_user_model()
 logger = logging.getLogger(__name__)
@@ -457,7 +457,7 @@ def write(
                     {'value': extra_values[self.alert_field]}
                 )
         if write:
-            timeseries_write(name=self.key, values=values, **options)
+            _timeseries_write(name=self.key, values=values, **options)
         return {'name': self.key, 'values': values, **options}
 
     @classmethod
@@ -469,7 +469,7 @@ def batch_write(cls, raw_data):
                 write_data.append(metric.write(**kwargs, write=False))
             except ValueError as error:
                 error_dict[metric.key] = str(error)
-        timeseries_batch_write(write_data)
+        _timeseries_batch_write(write_data)
         if error_dict:
             raise ValueError(error_dict)
 
diff --git a/openwisp_monitoring/monitoring/tasks.py b/openwisp_monitoring/monitoring/tasks.py
index 9952e73ff..392cb6748 100644
--- a/openwisp_monitoring/monitoring/tasks.py
+++ b/openwisp_monitoring/monitoring/tasks.py
@@ -39,7 +39,7 @@ def _metric_post_write(name, values, metric, check_threshold_kwargs, **kwargs):
     autoretry_for=(TimeseriesWriteException,),
     **RETRY_OPTIONS
 )
-def _timeseries_write(
+def timeseries_write(
     self, name, values, metric=None, check_threshold_kwargs=None, **kwargs
 ):
     """
@@ -49,15 +49,15 @@ def _timeseries_write(
     _metric_post_write(name, values, metric, check_threshold_kwargs, **kwargs)
 
 
-def timeseries_write(name, values, metric=None, check_threshold_kwargs=None, **kwargs):
+def _timeseries_write(name, values, metric=None, check_threshold_kwargs=None, **kwargs):
     """
     If the timeseries database is using UDP to write data,
     then write data synchronously.
     """
     if timeseries_db.use_udp:
-        func = _timeseries_write
+        func = timeseries_write
     else:
-        func = _timeseries_write.delay
+        func = timeseries_write.delay
         metric = metric.pk if metric else None
     func(
         name=name,
@@ -74,7 +74,7 @@ def timeseries_write(name, values, metric=None, check_threshold_kwargs=None, **k
     autoretry_for=(TimeseriesWriteException,),
     **RETRY_OPTIONS
 )
-def _timeseries_batch_write(self, data):
+def timeseries_batch_write(self, data):
     """
     Similar to timeseries_write function above, but operates on
     list of metric data (batch operation)
@@ -84,17 +84,17 @@ def _timeseries_batch_write(self, data):
         _metric_post_write(**metric_data)
 
 
-def timeseries_batch_write(data):
+def _timeseries_batch_write(data):
     """
     If the timeseries database is using UDP to write data,
     then write data synchronously.
     """
     if timeseries_db.use_udp:
-        _timeseries_batch_write(data=data)
+        timeseries_batch_write(data=data)
     else:
         for item in data:
             item['metric'] = item['metric'].pk
-        _timeseries_batch_write.delay(data=data)
+        timeseries_batch_write.delay(data=data)
 
 
 @shared_task(base=OpenwispCeleryTask)