Dwyer DM-004 Digimag® Differential Pressure Transmitter is a versatile and reliable product suitable for air and non-combustible gases. It has an accuracy of ±1% FSO (except for low ranges), a power requirement of 10-35 VDC, and utilizes screw-type terminals for electrical connections. The transmitter features a 4-20 mA output signal, push-button zero and span adjustments, and a NEMA 4X (IP66) enclosure rating. Its compact dimensions of 5" OD x 1.9" deep make it easy to install, and it is not sensitive to mounting orientation. The product is constructed from durable, polycarbonate material and can withstand pressure up to 6 psi. With a thermal effect of 0.036% FS/°C, stability of < ±1%/year FSO, and a maximum current consumption of 21 mA, the DM-004 is a reliable and efficient choice for differential pressure measurement.