In large facilities, monitoring environmental conditions and ensuring safety is essential. The problem is that most monitoring systems are expensive to install and manage. What's more, in the absence of these systems, it can be hard to pinpoint an issue like a gas leak.

This project provides a cellular and LoRa-based system that monitors air quality and detects gas leaks on many nodes across a facility. A sensor that can measure both air quality and gas is connected to a Sparrow reference node, which sends air quality readings to a Notecard-powered gateway. The use of Sparrow allows many devices to be serviced by a single Notecard gateway, meaning that a number of low-cost nodes can be deployed around a facility.