Welcome to Calculator and Handheld Systems and Services. Our aim is to bring you value for money.

Satellite phones are now available for hire.

The Hema Navigator HN5i now only $689.00 including additional bonuses worth over $60.00!

The new Hema Navigator HN6 is now in stock. See here.

We are an official Hema Premium Dealer as well as a Find Me Spot dealer.  

We also sell Garmin aviation GPS units.

Also available are Personal Locator Beacons and satellite phones as well as Hewlett Packard calculators.

Both Vicmap books and Spatial Vision four wheel drive maps for Victoria are also now available.

You'll also find various value added products with us!

Chris Brady's Boeing 737 Technical Guide is now in stock. Ideal for pilots, engineers and enthusiasts.