I have no connection either to Serenco in Holland or Calfinn who distribute in Australia.
I do endorse the product having used it myself on my Truck/Bus based Motorhome with excellent results.
I will still go to a tyre dealers afterwards to have the wheel nuts torqued to the correct setting after I have replaced the wheel. The power Enforcer will do up the nuts but it is not a torque spanner.
It would be helpful if they had listed prices, details about delivery charges and an order page would be really helpful - maybe they're not really selling this stuff and they just like to use it on a web page?