The company behind a first-of-its-kind overdose prevention device says 15 people in British Columbia are alive today after LifeguardLite called for help when they couldn’t.

The LifeguardLite device alerts building staff if a resident doesn’t disable an alarm after using drugs, and can even call 911 directly if the alarm if help is needed.

The device — now installed in more than 1,000 units in supportive housing and shelters across the Lower Mainland and Victoria — has been used over 2,000 times, called 911 for help 308 times, and has helped save 15 lives in B.C. since last April, according to data Lifeguard Digital Health shared with CBC News.

That’s an average of more than one life saved per month, amid a toxic drug crisis killing an average of nearly seven per day in B.C., according to the province.