Dwyer PMI-10WC-RLY-LCD is a particulate matter transmitter designed for air quality monitoring. It operates in temperatures ranging from 32 to 122°F and has an accuracy of ±10 µg/m3. It requires a power supply of 16-28 VAC/6-35 VDC and has a fast response time of <10 s. The transmitter has a range of 0-500 µg/m3 for PMI-2.5 and 0-600 µg/m3 for PMI-10, with particle sizes ranging from 0.3 to 2.5 µm and 0.3 to 10 µm respectively. The device is equipped with a laser scattering sensor and offers various output options including current, voltage, relay, and RS-485/Modbus®. It has a long service life of 8-10 years and is available with an optional 4-digit LCD display.