The CirrusSense wireless router provides a gateway for remote pressure readings, diagnostics, and immediate email/text alarm alerts transmitted by CirrusSense pressure transducers. The wireless router provides internet connectivity for Bluetooth-enabled CirrusSense pressure sensors attached to refrigerant, oil, and water lines. It provides worldwide remote access to pressure readings to ensure that monitored systems are fully functional and capable. Bluetooth-capable CirrusSense sensors attach to pressurized lines via a simple T fitting. They employ patent-pending circuitry to provide long battery life in permanent installations, with redundant sensing capability and self-monitoring of their own condition. A free mobile app ("T-Direct TDWLB" for Apple or Android devices) lets the user name each sensor one time securely, set the scaling for the application, program setpoints/alarms for multiple sensors, and monitor readings. The app also automatically calculates superheat and sub-cooling readouts.