User`s manual
Digital Display Manual 
15 
change of relative humidity expressed in percent per hour (%/hr). A positive rate 
means humidity is increasing. A negative rate means humidity is decreasing. 
3.4 Daily Minimum and Maximum Values 
As shown in Table 1, the Digital Display unit records and displays daily highs and 
lows for several weather variables. To view the daily lows, simply press and hold 
the "Min" key in the lower left region of the display. Releasing the button returns 
the display to current conditions mode. To view the daily highs, simply press and 
hold the "Max" key in the lower left region of the display. Releasing the button 
returns the display to current conditions mode. Values for which no daily highs 
and lows are tracked will not be displayed. 
The Digital Display tracks and stores daily highs and lows. On the first day of 
operation, the daily highs and lows will be those that occur subsequent to initial 
power up of the unit. Daily highs and lows will also be reset if the display’s power 
is removed or lost during operation. Section 2.3 explains how to utilize the UPS 
(uninterruptible power supply) to maintain continuous power supply to the 
display. 
NOTE: These high and low values are automatically reset at midnight each 
night. 










