I do neither make nor sell them. You'll have to check http://foogadgets.tictail.com

Right. In order to save space and money Tellmon only logs new values when they actually change. That's why the door-bell does not log more than the first time. Can you verify that you have one entry logged so that we know the device at least works? 

That is a very good idea. I'll add it to the list of planned features.

As you have pointed out previously min, max and avg only make sense for temp and humidity sensors. To some extent also wind speed. But for wind direction, rain rate, the two electricity meters they does not make sense. So I removed them temporarily today while adding support for the new wireless pulse counter electricity meter. 

They will return shortly once I find a better way to decide what is shown and for what kind of sensor.

Regards

Must be a bug in firefox. I've tried all browsers and devices and I am unable to reproduce.

Ok. I've updated tellmon with initial support for the new WPC device. I have yet to implement the ability to add "current" readings for the device to match your actual energy meter. Please have a look and test.