diff --git a/pocs/camera/zwo.py b/pocs/camera/zwo.py
index c0a88133f..9ff77ca2b 100644
--- a/pocs/camera/zwo.py
+++ b/pocs/camera/zwo.py
@@ -50,6 +50,10 @@ def __init__(self,
 
         super().__init__(name, ASIDriver, *args, **kwargs)
 
+        # Increase default temperature_tolerance for ZWO cameras because the
+        # default value is too low for their temperature resolution.
+        self.temperature_tolerance = kwargs.get('temperature_tolerance', 0.6 * u.Celsius)
+
         if gain:
             self.gain = gain