The Telaire T5100-LED series is a new low cost, high performing CO2 transmitter for the building controls market. It works seamlessly with building automation systems, and allows you to simply and effectively control fresh air into a ventilated space to regulated standards, providing immediate energy savings. With a range of 0 to 2000 ppm and an accuracy of 30 ppm or 3% of reading (whichever is higher), the T5100-LED incorporates color LEDs to indicate the CO2 level.