Fireye UC485 Converter 321894-709 the 4-inch probe length and

the 4-inch probe length and networking profile are optimized for discharge air temperature sensing in supply ducts

A furnace limit switch often trips due to restricted airflow

this part provides a robust seal for the air/gas arm

it features a Totally Enclosed Air Over (TEAO) enclosure and robust ball bearings for high-ambient performance and durability in outdoor units

industrial-grade construction necessary to withstand the high-temperature environments of professional HVAC installations

Fireye UC485 Converter 321894-709 the 4-inch probe length andThe Fireye UC485 is a professional grade USB to RS422 RS485 converter engineered specifically for technical field interface with Flame Monitor and MicroM burner control systems. This industrial optical isolator bridges the gap between modern laptop hardware and legacy communication loops, allowing for seamless Modbus RTU protocol integration. Unlike consumer grade adapters that fail under electrical noise, the UC485 features high speed transient