Exair's Hot Tap Digital Flowmeters allow installation when compressed air piping is under pressure. By eliminating the need to isolate and remove pressure from the pipe, these compressed air flowmeters reduce installation time while maintaining safety. The flowmeters incorporate two valves that the measuring probes pass through and a sound muffler that also collects chips from the drilling process. The Hot Tap feature is available on 2" through 8" flowmeters. They are available in standard units which display airflow values on a bright LED screen, with optional data logger to capture and manipulate the data, or with wireless capability to transmit the data securely over a wireless network.