| NDIR | NonDispersive InfraRed |
| ANOVA | analysis of variance |
| PCB | printed circuit board |
| API | Application Programming Interface |
| NNI | natural neighbor interpolation |
| ISM | Industrial Scientific Medical |
| Ah | Ampere hour |
| CO2 | Carbon dioxide |
| GHz | Giga Hertz |
| ppm | parts per million |
| cm | centimeter |
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