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. 2021 Jun 18;21(12):4187. doi: 10.3390/s21124187

Table 3.

Sensors used in measurements.

Sensor	Target Gases	Typical Detection Range
TGS1820	(CH $_{3}$ ) $_{2}$ CO	1–20 ppm (CH $_{3}$ ) $_{2}$ CO
TGS2620	C $_{2}$ H $_{5}$ OH,	50–5000 ppm C $_{2}$ H $_{5}$ OH
	Solvent apors
TGS8100	Air contaminants	1–30 ppm H $_{2}$
	(H $_{2}$ , C $_{2}$ H $_{5}$ OH etc.)
MICS5524	CO, VOCs	1–1000 ppm CO
		10–500 ppm C $_{2}$ H $_{5}$ OH
		1–1000 ppm H $_{2}$
		1–500 ppm NH $_{3}$
		>1000 ppm CH $_{4}$
MQ3	C $_{2}$ H $_{5}$ OH, CH $_{4}$ ,	0.04–4 mg/L C $_{2}$ H $_{5}$ OH
	Benzine, Hexane,
	LPG, CO
SGP30	CO $_{2}$ , VOCs	0–1000 ppm H $_{2}$
		0–1000 ppm C $_{2}$ H $_{5}$ OH
		0–60,000 ppb eq tVOCs
		400–60,000 ppm eq CO $_{2}$