While on the search for an alternative to directly buying the fairly expensive MH-Z19 CO2 sensor, [spezifisch] came across a ‘BreeRainz’ branded gadget (also found under other brands) that claimed to ...
The PointWatch Eclipse carbon dioxide gas detector's non-intrusive calibration allows a single person to calibrate the detector without declassifying the hazardous area. This infrared fixed-point ...
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