Powertec are Cel-Fi agents, which is the only legal option in NZ (as far as I know). 

Okay cool 🙂

Yep, these are legit, the only approved kit. I install these often.

All good, I know there are some dodgy websites out there. Was looking for something to improve the signal at my Mum's house. Thanks 😃

Perhaps consider VoWiFi for your Mum. Does mean having a compatible phone, and using 2D or Vodafone. Might be worth looking into (assuming she has a decent internet connection there).

Nope, crap copper where she is. ADSL no more than 5 Mb/s. Poor mobile signal too hence the signal improvement idea. But I'll try voice over wifi and see if it works. No harm in trying.

Yep hence my query ☺️

BioNz: As everyone one else has said they are the distri for celfi units.

As a radio tech who hunts down the unauthorized booster. It does pay to do the research before paying a couple of hundred dollars on what will prob become a paper weight in a matter or days/weeks.

You wouldn't happen to have a spectrum analyser plot of the rubbish unauthorized boosters emit would you?  I'm interested to see the occupied bandwidth of the carrier, in band spurs and harmonics etc...

i sure do. there is a plot in the sticky post at the top of the forum there. 

i even have a faulty one somewhere in my garage. what ill do is pull it out and turn it on and get you a close res one on the spec an.