Shelton, Connecticut-based GrayWolf Sensing Solutions has released its PC-5000 series wall-mount particle/mass monitors with options for total volatile organic compounds, carbon dioxide, temperature and relative humidity. This wall-mounted monitor is a modified version of the portable PC-4005, which the company introduced last year. The monitor displays and logs calculated particle mass concentrations while also displaying and logging all installed optional sensors. Its laser diode-powered sensor and precision brushless internal pump offers particulate measurements down to 0.3 microns, officials say. The PC-5000 series monitors can also be connected to GrayWolf’s AdvancedSense, DirectSense or WolfPack instruments to add additional parameters, such as formaldehyde, ozone and carbon monoxide, among others.