diff --git a/temper.py b/temper.py
index b4f2b8c..c3a5c1d 100755
--- a/temper.py
+++ b/temper.py
@@ -230,7 +230,7 @@ def _read_hidraw(self, device):
       #Bytes 11-12 hold the external temp, divide by 100
       self._parse_bytes('external temperature', 10, 100.0, bytes, info, self.verbose)
       return info
-    if info['firmware'][:14] == 'TEMPerHUM_V3.9':
+    if info['firmware'][:14] in ['TEMPerHUM_V3.9', 'TEMPerHUM_V4.1']:
       info['firmware'] = info['firmware'][:14]
       #Bytes 3-4 hold the device temp, divide by 100
       self._parse_bytes('internal temperature', 2, 100.0, bytes, info, self.verbose)