Experiences with integration of various WSNs in a single global sensor network, with possibilities for alerting and subscribing sensor data to interested users, could be efficiently used in public distribution systems. In today’s public distribution systems, regardless it is a water, gas, or public heat distribution, there are large number of installed sensor nodes, with accompanying software for monitoring and alerting, provided usually from a single vendor, making the network very homogeneous. Our solution tries to provide more flexible system with integration of various installed sensors from different vendors, which enable scalability of the system, with facilitated installation of new sensors in the future. In the same time, the unified functions of alerting, subscribing and monitoring are still preserved.