suitable for standard commercial modulation duty

providing the precise amperage draw required for modern integrated furnace controls to detect successful ignition and maintain safe operation

Physically inspect the element for hairline cracks or white deposits

If the burner fails to establish a flame

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

Dwyer Instruments CDT-2N40-LCD Transmitter R-448A suitable for standard commercial modulationThe 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