The Telaire T8200D5PR Dual Channel Wall Mount CO2 Transmitter, 5P Range, Relay Output, LCD Display uses a dual channel sensor to provide controlled ventilation. The T8200-D-5P-R features a dual-channel optical system and three-point calibration process for enhanced stability, accuracy, and reliability. Intended for use in applications where there is full-time occupation 24 hours a day.

Improper ventilation can have a negative impact on occupant health and performance, increase the risk from litigation, and/or waste energy. Demand-controlled ventilation using CO2 sensors prevents energy losses from over-ventilation while maintaining indoor air quality. The most energy savings potential is in buildings where occupancy fluctuates during a 24-hour period.