Common culprits include moisture buildup in the sensing lines (often seen in high-efficiency 90%+ condensing furnaces)

Designed specifically for commercial refrigeration and air conditioning systems

Does this unit include the internal orifice

Featuring a strictly calibrated

the SSS-1004 air flow sensor is a staple for maintaining calibrated CFM setpoints in variable air volume systems

Schneider Electric (Barber Colman) AT-211 Shield Els PW 17895 Common culprits include moisture buildupThe Schneider Electric (Barber Colman) AT 211 Outdoor Bulb Shield is a critical hardware component designed for the rugged protection of remote sensing bulbs in demanding external environments. Measuring 2 x 11 3 4 inches, this aluminum bulb shield provides a robust mechanical barrier against physical impact, direct solar radiation, and corrosive atmospheric elements. Engineered specifically for HVAC outdoor sensor protection, the AT 211 shield