Dwyer PMT2-30-A-U2 Particulate Transmitter is a reliable and accurate device for monitoring air quality. With a temperature range of -40 to 248°F (-40 to 120°C) and an accuracy of ±5% of reading, it is suitable for various environments. It operates on a power requirement of 12 to 28 VDC and has a sturdy enclosure rating of UL Type 4 (IP66) and ATEX/IECEx IP65. The transmitter provides a 4 to 20 mA output signal and has two 1/2" female NPT conduit openings for electrical connections. It is compatible with air and all types of conductive or nonconductive particulates. The instrument's wetted material includes 316L SS, silicone, and PTFE, ensuring durability. It has a pressure limit of 30 psi (2 bar) and can be mounted in any orientation. The transmitter detects particulate sizes of 0.3 microns and higher within a detection range of 5 to 5000 pA (6 range options). Averaging time and terminal block options allow for customization and ease of use. The enclosure is made of powder-coated aluminum, providing additional protection.