Dwyer 679-2 is a weatherproof pressure transmitter designed for use with corrosive liquids and gases. It operates in temperatures ranging from -40 to 260°F (-40 to 125°C) with accuracy at ±.25% FS. It offers a 4-20 mA output and has two 1/2" conduit ports for electrical connections. The transmitter is made of aluminum enclosure with wetted parts constructed from corrosive resistant 17-4 PH stainless steel. It has zero and span adjustments of ±15% non-interactive and a voltage requirement of 9-30 VDC. With a loop resistance of 800 ohms and stability of less than .5% FS/year, this transmitter is a reliable and efficient choice.