Atmos Portable Tightness Monitor is a field portable version of the Atmos Tightness Monitor system. The product is supplied in two Peli cases and can be quickly connected to the hydrant pipeline by the operator. Following completion of the test it can be quickly disconnected and moved to other hydrant segments for further testing. The hardware can be connected to the hydrant via a coupler on a refueling point or via a low point drain. Atmos Portable Tightness Monitor is a cost-effective alternative to retrofitting the appropriate instrumentation and automation needed to test airport hydrants in airports that lack a fixed leak test installation. Compliant with EI 1540, EI 1560, JIG2, and JIG4.