H6420 Temperature, humidity, CO2 transmitter with two relay and RS485 outputs

Temperature, humidity, CO2 level sensor with two output relays.

Green LED shines - CO2 concentration 0 to 1000 ppm

Yellow LED shines - CO2 concentration 1001 to 1200 ppm

Red LED shines - CO2 concentration 1201 ppm and more

Possibility to extend the measuring range for an additional charge:

• Measuring range:  0 to 10 000 ppm
• Accuracy: 100 ppm + 5% of the measured value at 25 °C and 1013 hPa