The CRL Series remote mount carbon dioxide sensor is designed for use in HVAC control applications. Inside buildings, people are the major source of CO2. By controlling fresh air based on CO2 levels, energy can be saved and tenant comfort improved. The CRL Series ensures that adequate ventilation is provided, while maximizing energy savings by ventilating at the optimum level. APPLICATIONS Controlling HVAC in response to occupancy Improving tenant comfort Facilitating compliance with ASHRAE 62.1-2004 standard for air quality Direct measuring of outside air or sample from other remote area Microprocessor design reduces long-term drift and calibration requirements Non-dispersive infrared technology (NDIR) repeatable to ±20 ppm 0-2000 ppm range Innovative self-calibration algorithm 5-year calibration interval (recommended) Low ambient sensitivity Field-selectable 4-20mA/0-5V/0-10V output Comes complete with AA50 3 ft long duct pickup and filtered sample tube assembly LCD display Alarm relay output to trigger HVAC equipment at predetermined level