Dwyer 668D-01-1 is a compact differential pressure transmitter that operates in temperatures ranging from 0 to 170°F. It has an accuracy of ±0.8% FS and requires a power supply of 12 to 32 VDC. The transmitter provides output signals of 4 to 20 mA, 0 to 10 VDC, or 0 to 5 VDC. It can be adjusted for zero and span, and is suitable for use with air and non-conductive gases. The pressure limit is 15 psig, and the process connection is a 3/16" OD barbed brass. The transmitter is enclosed in a stainless steel and PC+ABS alloy with UL 94 V-0 rating. It has a thermal effect of ±0.03% FS/°F and is compensated for temperatures between 40 to 170°F.