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Table 2

Reliability considerations for low-cost sensors

ParametersDescription
Longevity or stability Time of operation before replacement (Kumar et al. 2015) 
Accuracy Agreement between the measurement and true value (JCGM 2012) 
Repeatability Measurement precision under a set of repeated conditions of measurement (JCGM 2012) 
Reproducibility Agreement between measurements of the same measure and carried out under varying conditions of measurement (JCGM 2012) 
Resolution Smallest change in a quantity being measured that causes a perceptible change in the corresponding indication (JCGM 2012) 
Response time Duration between a step change in condition and the first observable corresponding change in measurement response (JCGM 2012) 
Sensitivity to the environment Effect of environmental factors (temperature, relative humidity) on sensor output (Rai et al. 2017) 
ParametersDescription
Longevity or stability Time of operation before replacement (Kumar et al. 2015) 
Accuracy Agreement between the measurement and true value (JCGM 2012) 
Repeatability Measurement precision under a set of repeated conditions of measurement (JCGM 2012) 
Reproducibility Agreement between measurements of the same measure and carried out under varying conditions of measurement (JCGM 2012) 
Resolution Smallest change in a quantity being measured that causes a perceptible change in the corresponding indication (JCGM 2012) 
Response time Duration between a step change in condition and the first observable corresponding change in measurement response (JCGM 2012) 
Sensitivity to the environment Effect of environmental factors (temperature, relative humidity) on sensor output (Rai et al. 2017) 
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