Carpark ventilation system model CE 400 package includes:- Switchboard (are designed as your specification requirements) - Four fans- Four VSDs - 1,5KW- Six Carbon Monoxide controllersUsing for multi-zone, multi-level car park up to 4.600m2. Price is excluding GST. This package is easy for installation because all VSDs and Carbon Monoxide Controllers devices can be programmed to your specifications or Australia Standards FREE OF CHARGE.