The growing availability of low-cost air quality sensors is helping people across the world track air pollution.

Thermal cameras are very often $200 or more, but this inexpensive model from Thermal Master works for both iOS and Android and has a ± 3.6°F accuracy.

For the $5 I'd paid for it, that would have been cool. But alas, apart from being a useless scam, it's quite innocent. I tore mine apart, and inside is very little. Inside the plastic box is a circuit ...

Abstract: In wastewater treatment processes, the monitoring of dissolved oxygen sensor is the key to ensure the quality of effluent. In this paper, a method for fault detection of dissolved oxygen ...

When the dreaded malfunction indicator light turns on, it’s not the end of the world. Here’s how to cope with an MIL!