The P18-300M0 is a temperature and humidity converter manufactured by LUMEL. It operates on 9 to 24 Volts DC and 9 to 24 Volts AC, with a working temperature range of -20 to 60 degrees Celsius. It is specifically designed to measure, display, control, and record temperature and relative humidity. It helps to ensure that operations are conducted safely and effectively in compliance with applicable standards. This converter can be used for a variety of applications including automotive, industrial, medical, and agricultural sectors.