Trusted by Canadians for Three Generations! At Thermor Ltd we take pride in our history of innovation. We began in the 30's by manufacturing blood pressure equipment for clinics and hospitals and went on to pioneer the first home use blood pressure monitor in Canada. Since then, we’ve continued to reinvent the category, offering Canadians the first digital monitor, the first colour screen monitor, and now the first and only monitor that screens for Atrial Fibrillation. With our precision devices, we’ve been providing peace of mind to Canadians for decades.