Sigma represents 25 years of German technology at it's highest level, combining innovative design with precision engineering. All products are CE-approved and tested in the Sigma in-house laboratories to withstand the harshest conditions, ensuring quality continuously throughout production, yet remaining great value.
Sigma offer two unique ranges of heart rate monitors, ensuring there is a model to suit every fitness enthusiast and all types of exercise or sport - indoor and outdoor.
www.sigmasport.de