Built to UL 810 standards and tested for 5

Internal Isolation: The spring chamber is separated from the media

Direct Replacement: Seamlessly replaces the original 8201-113 board

For technicians performing a York pressure switch replacement

It is highly versatile

Laars Heating Systems E0253900 Thermistor Probe 319852-301 Built to UL 810 standardsThe Laars Heating Systems E0253900 Thermistor Probe is a precision engineered temperature sensor designed for high performance integration within commercial boilers and volume water heaters. This OEM thermistor utilizes an NTC (Negative Temperature Coefficient) semiconductor element to provide real time thermal monitoring, ensuring the control board can accurately modulate burner firing rates and maintain setpoint stability. Built for compatibility