Product Description Detailed Specs Downloads Reviews/Questions Product Description PCB,UI Full Touch Spare PM23/43 Detailed Specs Product Family PM23, PM43 MFG Part Number 234-040S-0500 Product Type Accessory null null null null null null null null null null Downloads Warranties Warranties Reviews/Questions The Honeywell 234-040S-0500 is also known as HON -234040S0500 or 234040S0500