Table 8.

Carbon monoxide concentration measurement range and accuracy of fault detection monitors (as indicated by manufacturers).

Equipment	Measurement Range (ppm)	Accuracy	Repeatability
Calisto 2	25–100.000	$\pm 25$ ppm or $\pm 15$%	$\pm 25$ ppm or $\pm 10$%
SmartDGA Guard	10–10.000	$\pm 10$ ppm or $\pm 5$%	–
Minitrans	10–50.000	$\pm 10$ ppm or $\pm 10$%	–
Hydran 201Ti
Hydran M2-X
MHT410
CoreSense
DGA 150
Serveron TM1
Hydrocal 1003	0–2.000	$\pm 25$ ppm or $\pm 20$%	–
Hydrocal 1004 GenX	0–6.000	$\pm 5$ ppm or $\pm 10$%	–
Hydrocal 1005	0–2.000	$\pm 25$ ppm or $\pm 20$%	–
H2 Guard
Multisense 5	0–5.000	±LDL ppm or $\pm 5$%	–

–: Not indicated by the manufacturer; Blank spaces indicate what the monitors do not measure.