MetriNet from Analytical Technology, derived from Network Metrics, is a low-power, modular system for monitoring water quality at remote locations. The heart of the system is a series of smart digital sensors. M-Nodes are a complete sensor and transmitter housed in a miniaturized body. Data transmission is accomplished via cellular modem, Wi-Fi, or wired Modbus, Ethernet, or Profibus. 800/959-0299; www.analyticaltechnology.com; Booth 2643.