This is the aftermarket dual probe assembly designed to fit into the existing boiler manifold

Physically inspect the element for hairline cracks or white deposits

the unit features a sophisticated four-way airflow design that actively minimizes self-heating

this component ensures a drop-in replacement that maintains the original equipment’s combustion efficiency and safety safety parameters

Dwyer Instruments CDT-2N40-LCD Transmitter R-448A This is the aftermarket dualThe Dwyer CDT 2N40 LCD is a field selectable Carbon Dioxide Transmitter designed for precise demand controlled ventilation in commercial HVAC systems. Utilizing Non Dispersive Infrared (NDIR) technology, this wall mount sensor accurately monitors CO2 concentrations from 0 to 2000 ppm. The single beam dual wavelength sensor design enables automatic baseline calibration, effectively compensating for aging components to ensure long term stability in