This Cleveland Controls ESP RSS-495-011 is a field adjustable pressure switch designed for precise air pressure monitoring in HVAC and gas appliance systems. This universal air pressure switch offers an adjustable range from 0.2 to 1.0 inch W.C., providing reliable performance for various pressure sensing applications. It is engineered to meet rigorous industry standards for safety and operational accuracy. The unit features a compact design with a 1/4 inch connection, making it an ideal component for professional installations or system replacements. The RSS-495 series is well-regarded for its durability and consistent response times in critical pressure control environments. This listing is for a new unit in its original condition, ready for immediate integration into your system. Each switch is built to maintain system efficiency by monitoring air flow or pressure levels effectively. Whether you are performing routine maintenance or conducting a new installation, this Cleveland Controls pressure switch provides the necessary sensitivity and technical specifications required for proper equipment operation.