The SPDT Adjustable Air Sensing Switch operates within a pressure range of 1.0 to 4.0 inches of water column (W.C). This switch is designed for reliable air pressure monitoring in HVAC systems, ensuring optimal performance and safety. Constructed with durable materials, it features adjustable settings for precise calibration. The compact design allows for easy installation in various applications, making it suitable for both residential and commercial use. Compliance with industry standards ensures dependable operation in critical environments.