The M9206 electric spring return actuator series, for use with unit ventilators, rooftop air dampers, or ball valves, provides 53 lb-in. of torque and is available for use with floating, on/off, or proportional controllers. The spring return of the actuator can be customized during installation due to a reversible mounting design, says the company. Other features include auto commissioning, an attached wiring harness for fast installation, multiple voltage and current input signals that are switch selectable, and a removable coupler for quick stroke adjustment, the company says. Johnson Controls, Inc., P.O. Box 423, Milwaukee, WI 53201; 800-972-8040 ext. 425; 414-347-0221 (fax); www.johnson controls.com (website).