The 8000-119-SE is now obsolete.
Your instrument may require a one time upgrade kit.
If you have a WDG-VC with an RTD combustibles detector, no conversion kit will be required.
If you have a WDG-VCM with an RTD combustibles detector, the conversion kit will be 7002-444-TE.
After the upgrade is made or if you do not requrire an upgrade, the 8000-119-SE will be replaced with 8000-223-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)