Duct air velocity transmitters are critical equipment for acquiring airflow data in ventilation, environmental protection and industrial exhaust monitoring projects. Improper selection may cause measurement deviations, system incompatibility, or even equipment damage. The following outlines key selection criteria across five dimensions to support sound decision-making. 1. Determine Measured Medium...
Phosphine (PH₃) is a colourless, pungent and highly toxic gas, as well as a strong reducing agent. Its toxic threshold limit value (TVL) is below 0.3 ppm. Any leakage can cause severe damage to the central nervous system. For this reason, real-time phosphine monitoring is critical for industrial safety, agricultural production and environmental protection. With numerous PH₃ sensors available on th...
