diff --git a/cedargrove_nau7802.py b/cedargrove_nau7802.py
index 145fa3c..f12fec4 100755
--- a/cedargrove_nau7802.py
+++ b/cedargrove_nau7802.py
@@ -255,6 +255,7 @@ def gain(self, factor=1):
 
     @property
     def poll_rate(self):
+        """ADC conversion/polling rate."""
         return self._c2_conv_rate
 
     @poll_rate.setter