Dwyer 3400-AL-20-NM-2 is a smart pressure transmitter suitable for use in hazardous locations. It operates in a temperature range of -40 to 185°F (-40 to 85°C) for ambient conditions and -40 to 400°F (-40 to 204°C) when used with -DS. With an accuracy of ±0.075% FS (@ 20°C), it offers precise measurements. The transmitter requires a power supply of 10 to 55 VDC and has a response time of 16 to 480 ms. The enclosed NEMA 4X IP66/IP67 rated unit features electrical connections including a packing gland M20x1.5, two 1/2" female NPT conduits, and a screw terminal. It provides a 4 to 20 mA output signal and can be used with compatible gases, steam, liquids, or vapors. The wetted material is made from 316L SS for durability and longevity. It has a 1/2" female or male NPT process connection and offers a rangeability of up to 100:1 turn down. With a MTBF of 126 years and stability of ≤0.075% FSO/3 years, this transmitter is reliable for various applications. Its damping time is programmable from 0 to 60 seconds, and the thermal effect is less than ±0.05% span/10°C. The transmitter has a MTFF of MTBF minus 8 hours, ensuring minimal downtime.