Canadian Owned and Operated for over 30 years Multigas Detection and Reltech provides gas detection system sales, service, and calibrations, and Variable Frequency Drive (VFD) and soft start sales, service, repair, and preventative maintenance. Multigas Detection and Reltech has striven for the highest standard of quality, excellence, and integrity. We are proud to be Western Canada’s manufacturer representative and factory service centre for multiple brands of equipment.