If you already have a license for an older version of Instrumentation/Charting controls, then you can save money and purchase an upgrade to the latest versions of software! Item Number License Type Product Price Online Ordering Link 41266115 Version Upgrade Upgrade Instrument Pro Pack 2.x to Instrument Pro Pack Version 3.x US$295 41266114 Version Upgrade Upgrade Instrument Pack Standard 2.x to Instrument Pack Standard Version 3.x US$150 41266125 Version Upgrade Upgrade Plot Pack Version 2.x to Plot Pack Version 3.x US$225   41266111 Product Upgrade Upgrade Instrument Pack Standard 3.0 to to Instrument Pack Pro 3.0 US$499