677B-08 is a series 677B differential pressure transmitter which is designed to measure pressures as low as 0.1in w.c. with ±0.4% accuracy. Use series 677B for building energy management systems, environmental pollution control, oven pressurization, lab and fume hood control, HVAC and VAV applications. The transmitter features 15PSID overpressure, reverse polarity protection and EMI/RFI protection. Internal regulation permits use with unregulated DC power supplies. The NEMA 4 housing allows for versatile mounting locations and integral mounting tabs simplify installation. Typical applications include building energy management, lab and fume hood control, environmental pollution control and variable air volume.