MetriNet from Analytical Technology is a low-power, modular system for monitoring water quality at remote locations. It is a unified system for monitoring water quality and then transmitting the data for web-based storage or directly to a customer site. The system enables users to assemble monitoring units that fit their individual site requirement. Individual smart sensors called M-Nodes take the measurements. These devices are a complete sensor and monitor in one miniaturized package. Data transmission is accomplished via cellular modem; Wi-Fi; or wired Modbus, Ethernet, or Profibus. The M-Node sensors are available for a variety of water-quality parameters such as free chlorine, total chlorine, turbidity, pH, conductivity and ORP. 800-959-0299; www.analyticaltechnology.com.