VERIS CWLPHXX Wall C02 Sensor, LCD, 2%RH, Protocol CW Protocol series is a non-dispersive infrared (NDIR) sensor designed for measuring CO2 concentration in ventilation systems and indoor living spaces. Its measurement range of 0 to 5000 ppm makes it the premier solution for meeting ASHRAE and other ventilation efficiency standards. CW Protocol devices feature embedded BACnet and Modbus communication protocols, as well as optional temperature and humidity sensors. An adjustable setpoint relay is provided for direct control and alarm applications and the optional setpoint slider and pushbutton override offer additional local input. Communicating - embedded BACnet and Modbus communication protocols easy systems integration Configurable baud rates - configurable to multiple baud rates transfer data at the right speed for the system CO2 and humidity sensors in one device at one address provides more information and maximizes system capacity Feature override - local feature override capability from the building control system added control and flexibility Self-calibrating - innovative self-calibration algorithm maximizes performance, field calibratable minimizes downtime 2% standard RH Non-dispersive infrared (NDIR) diffusion sampling CO2 sensor Replaceable digitally profiled thin-film capacitive (32-bit mathematics) US Patent 5,844,138 HS sensor New open box. Comes with exactly what is shown in the picture. We take our reputation seriously, we buy and sell online, so we understand the value of trust! If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction! Thanks for looking at our listing and supporting our small family business! SHELF: 57 NT