Product Description Detailed Specs Downloads Reviews/Questions Product Description Software upgrade, Granit 191Xi 1D to 2D Detailed Specs null null null null null null null null null null MFG Part Number SW-2D-19XX Product Type Software Version Honeywell Granit 191Xi Upgrade Software Product Family Granit 191Xi Downloads Reviews/Questions The Honeywell SW-2D-19XX is also known as HON -SW2D19XX or SW2D19XX