The SBTI Sentinel II Benchtop Ionizer offers improved static control with a 16″ x 36″ coverage area, ±3 volts offset voltage, and discharge times under 1 second at 12″. It has a Sealed Plenum Air Flow to prevent contamination, a 3-position fan speed control, and an Active Balancing System with alarms. It supports 220V and has replaceable emitter pins. Power cord sold separately. Made in the USA.