The Model 811FM is a two-wire transmitter that has welded stainless steel diaphragms for use with liquid, gas or corrosive vapors. The Model 811FM pressure transducers are manufactured out of 17-4 PH stainless steel wetted material for ranges up to 2,000 psi or 15-5 PH stainless steel, wetted material for ranges 2,000 psi and greater. This model has a hermetically-sealed, stainless steel cases that requires no adjustment. These transducers are corrosion and shock resistant, as well as, reverse polarity protected. The 4 mA to 20 mA output permits long cable runs up with a high signal-to-noise ratio. A dual pipe thread pressure fitting is provided for easy bulkhead mounting.