eYc DMB04 4-in-1 Multifunction Indoor Air Quality Large LED Display / Monitor / Indicator

Temperature : 1.5″ ( 3.8 cm ) red LED

Humidity : 1.5″ ( 3.8 cm ) red LED

PM2.5 : 2.3″ ( 5.8 cm ) yellow LED

CO2 : 2.3″ ( 5.8 cm ) green LED
Input RS-485
Output RS-485
Protocol
Frame : N.81, N.8.2, E.8.1, O.8.1
Installation Indoor and Wall type
Use with combination with eYc GTH03 CO2 Temperature & Humidity Transmitter