The GreenLight Model 930 from Baseline measures the respiration of aerobic bacteria and equates changes in oxygen levels to the amount of organisms in the sample. In as little as 45 minutes, it calculates the total aerobic bacteria count in a sample or provides a pass/fail indication based on defined thresholds. It can work with 2 or 15 mL sample vials via a carousel. The system is monitored with software that can display pass/fail indications or bacterial counts and export data for analysis. 303/823-666; www.baseline-mocon.com.