diff --git a/Classes/FanControl.m b/Classes/FanControl.m
index 2ba7b7b..1307454 100755
--- a/Classes/FanControl.m
+++ b/Classes/FanControl.m
@@ -216,6 +216,9 @@ NSUserDefaults *defaults;
 	//release MachineDefaults class first call
 	//add timer for reading to RunLoop
 	_readTimer = [NSTimer scheduledTimerWithTimeInterval:4.0 target:self selector:@selector(readFanData:) userInfo:nil repeats:YES];
+    if ([_readTimer respondsToSelector:@selector(setTolerance:)]) {
+        [_readTimer setTolerance:2.0];
+    }
 	[_readTimer fire];
 	//autoapply settings if valid
 	[self upgradeFavorites];
diff --git a/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate b/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate
index a30b538..f50f6ee 100644
Binary files a/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate and b/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate differ