The 24" Chargebuster Overhead Ionizer uses steady-state DC to provide a consistent offset voltage (balance) of ±10V. Discharge time is < 3 sec. per ANSI/ESD STM 3.1. Has auto-feedback system with audible and visual alarms. Automatically shuts down and alarms when supply voltage drops. Input voltage is 120/220 VAC selectable. Three-position fans provide consistent ionization performance at all speeds. Emitter pins are field-replaceable.  
 
Desco, www.Desco.com