The 80461SE is now obsolete.
Your WDG-IVC/HPIIC with Hot-wire (catalytic bead) combustibles detector will require a one time conversion kit 7002-436-TE.
After the upgrade is made, the 80461SE will be replaced with the new board part number 8000-219-SE.
If you need further clarification, please click on this link which will take you step-by-step to the replacement part you need: Replacement Part
Please feel free to contact our AMETEK PI service team with any questions here: Aftermarket (ametekpi.com)