LEFOO LFG60 All-in-One Air Quality Transmitter is used to detect a variety of air quality parameters, including temperature and humidity, CO2, PM2.5, PM10, VOC, formaldehyde, up to 7 parameters; optional isolated/non-isolated RS485 output, built-in Modbus protocol, realize real-time detection of multi-point distribution data. indoor type can be equipped with display screen and keys, and the split screen can display air quality parameters.