Measurement readings recorded as the minimum (lowest or min) value achieved and the maximum (highest or max) value achieved since being turned on.
Minimum and maximum temperatures of a desired range. Readings above or below the set values will trigger an alarm.
Check the batteries, they may need replacing. If still receiving errors after battery replacement, remove the batteries, press all the buttons-one at a time, and put the batteries back in.
If the temperature of the environment is within the thermometers’ or hygrometers’ measuring range, this error will occur if the probe is disconnected or damaged.
Visual and audible indicators which signal continuously until acknowledged, even if the parameter returns to the non-alarm range.