CDD4B100T20R

Room Carbon Dioxide Sensor, 0-20,000 ppm, Concealed LCD, 20,000 Ohm, NTC Thermistor, ?0.2 C, Relay Output https://downloads.greystoneenergy.com/Submittals/PS-CDD4X1XXX.pdf https://downloads.greystoneenergy.com/Install%20Notes/IN-GE-CDD4X1XXX.pdf