Polygon Technologies started in 2002 as ignorant confidence plus a side order of passionate hard work, when Carel started (part-time), selling hardware kits for people to build their own MP3 players. In 2003, he lost a screw somewhere and decided to go it alone from his single garage. Poor guy… He had no idea what he was in for!

The business was contract development. People come with their requirements and he would design it for them. It was exciting, fascinating work and he designed everything from MP3 jukeboxes to gambling machines and who-knows-what-else.

After hitting his head really hard a few times, (probably knocking out what remained of his screws) it dawned on him that we needed our own product. It has to be said that at the time, “we” consisted of only him, his dear, longsuffering wife and a number of assorted voices in his head.

It took a long time to eventually decide on the GSM Commander concept, and once decided, it took another 2 years for him to eventually get it done. In 2007, we launched the GSM Commander. Since then, the product has sold in excess of 20 000 units (as of 2016).

It has been a wild ride, sometimes scary, sometimes fun.

Meet the team

Management & Accounts

Carel - GSM Commander

Carel Hauptfleisch


Carel is the founder and Owner of Polygon Technologies the holding company that develops and manufactures the GSM Commander and related products.

Administration & Dispatch

GSM Commander

Elzette Pretorius

Reception / Dispatch


John - GSM Commander

John Frank

Sales Manager


Candice - GSM Commander

Candice Kirsten

Marketing Coordinator


Reuben - GSM Commander

Reuben Vice

Ready-To-Mount Technician

Eric - GSM Commander

Eric Mushangalusa

Electronic Technician

GSM Commander

Rufin Matondo

Electronic Technician

Technical & Support

Demetri - GSM Commander

Demetri Smit

Support Technician

GSM Commander

Marks Reyneke

Product Engineer


Braam - GSM Commander

Braam van der Merwe

Software Developer

Braam is part of the team that develops and maintains the Airdrive System. November 2016 will mark his 20 year milestone as a Developer.

GSM Commander

David Osterloh

Hardware Developer