Affordable Chemical Hazard Detection Device Unveiled
The Air Quality Guardian, a self-proclaimed open source chemical threat detection system by [debdoot], is making waves in the DIY community. This affordable device is designed to provide a more granular look at the data coming off gas sensors, analysing raw resistance, ohm-level data, temporal spikes, and humidity correlations.
The system boasts a database of over 35 unique signatures, each potentially indicative of various chemical compounds. However, it's important to note that the Air Quality Guardian has not been tested against chemical warfare agents, leading to the expectation of potential false positives.
The Air Quality Guardian is built on ESP32 hardware, making it an affordable solution, costing less than $100. This is significantly lower than commercial chemical threat detection systems. Yet, it's crucial to remember that the performance and accuracy of the Air Quality Guardian are not yet validated beyond self-reported claims (Editor's note added).
The calibration work for the Air Quality Guardian is still in progress. As a DIY project, users are encouraged to contribute to its development and refinement. It's essential to note that the Air Quality Guardian is not comparable to an air monitor from IKEA in terms of functionality.
In conclusion, the Air Quality Guardian offers an affordable and accessible solution for those interested in DIY chemical threat detection. While it has yet to be tested against chemical warfare agents and its calibration work is ongoing, the project presents an exciting opportunity for community-driven development in the field of chemical threat detection.
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