What is the primary difference between 1063768 and 2802-106

There is no functional or technical difference between the two

Can I use this thermocouple with other brands of pilot burners

When retrofitting

Vulcain IAQPT-SM-A Monitor Freon What is the primary differenceThe Vulcain IAQPT SM A is a high precision, wall mounted CO2 gas monitor engineered for demand control ventilation (DCV) and indoor air quality management. As a direct replacement for legacy models including the 90DM4SM C, IAQ SM A, and M 512041, this unit utilizes advanced non dispersive infrared (NDIR) dual beam technology to compensate for sensor drift and ensure long term signal stability. Designed for seamless integration into building management