1) Source (Software)
2) Stick (USB-stick)
3) Circle
4) Circle+
and secondly, also where can i purchase it? the http://www.plugwise.com/en/ webshop is not available therefore im unable to check the prices and the shipping fee.
thirdly, im wondering if there is any developing tools that i can use for plugwise products? im trying to monitor & control the power used by appliances/light. therefore im hoping that im able to control & monitor appliances/light through plugwise

Thank you
Regards,
y0ngg