Testo 0632 3331 Ambient CO Probe for Detecting CO

The Testo 0632 3331 is an ambient CO probe for detecting CO. It has a measuring range of 0 to 500 ppm with an accuracy of ±5 ppm (0 to +100 ppm) ±5 % of mv (+100.1 to +500 ppm). The 0632 3331 is compatible with the Testo 950, 650, 400, 320, and 330. The 0632 3331 gives a measurement of the carbon monoxide levels in the air of an indoor room and includes a fixed cable.