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Aurora Probability in Northern Canada

Auroral forecast from AuroraWatch.ca


North America Aurora Map from
NOAA Space Weather Prediction Center

Aurora Map - NOAA




Learn the features and functionality of GTCO CalComp by Turning Technologies products with informative and easy to understand user guides. The below manuals include step-by-step instructions and helpful tips to enhance a user’s knowledge and skills to operate our solutions.

US Prices
CDN Prices

Privacy and Security Policy


Large-Format Digitizers
and Graphics Tablets

DrawingBoard VI

Super L VI
Roll-Up III
Estimator’s Tools

QuikRuler III

Driver’s and Software


Accessories - VersaTable

Legacy Products 

AccuTab Series
DrawingBoard Series
Super L Series
Roll-Up Series
DrawingSlate Series

QuikRuler Series
Summagrid Series
SummaSketch Series
MM Series
CR Series
Digitizers & Tablets  
USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1364
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027