Case that comes with a heating element to warm your sleeve and a thermal switch to prevent the heater from going over ~98 degrees F.
Without the heater this case will still keep a preheated sleeve warm for longer as the case is double walled.
This upgrade can be added to any order.
Designed by TempestMax please support him on his Patreon. He is great about releasing new content regularly and improving upon his design based on our feedback.
Not needed to operate OSR2 or SR6.