Instrument	Range	Tolerance
Electronic Hygrometers	From -70°c to +30°c dew point	Variable
Electronic Hygrometers	0.6 Specific Gravity to 1.5 Specific Gravity	Variable
Glass Hygrometers	0.79 Specific Gravity to 1.3 Specific Gravity	5 to 95% RH
% Relative Humidity Indicating Instrumentation	0 to 95% RH	5 to 95% RH