Milerd EcoTracker is a pocket-sized device that helps you keep healthy by checking food and water contamination using probes.

These connect to an LX3302A inductive sensor IC, which reads the position of the copper slug inside the float. That simplifies the process greatly; [Mark] goes into great detail about the design ...

UT's Jian Liu received a $300,000 grant to develop IoTree, a low-cost, battery-free plant monitoring system. This system uses sensors to track plant health indicators and wirelessly transmit data. The ...

Researchers have developed a new optical sensor that provides a simple way to achieve real-time detection of extremely low levels of arsenic in water.