The ratio of number of residents in Gainesville to the number of sex offenders is 765 to 1. The number of registered sex offenders compared to the number of residents in this city is smaller than the state average. Nearest city with pop. 50,000+: Dale City, VA (18.1 miles , pop. 55,971).
Carbon monoxide alarms have a limited life, typically 5 to 7 years (some even less). Most people donât realize they need to replace a $25 - $75 item after several years.
The response time and response-level of a carbon monoxide detector used as a building safety alarm varies by model. But in general, at 400 ppm of CO a Carbon monoxide detector will respond in minutes and at 30 ppm or below the CO detector is designed not to respond for 30 days.