Description
Monitor mid-range carbon monoxide concentrations with confidence using the NextTeq NX119LM detector tube, calibrated for a 10–250 ppm measuring range across 3 pump strokes with a detectable limit of 1 ppm. This colorimetric tube reacts with CO to shift from yellow to dark brown, allowing results to be read directly off the printed scale without the need for a separate concentration chart. With a 2-year shelf life and 5–10% accuracy across its range, it's a reliable choice for general industrial hygiene and workplace CO monitoring.