Installation Guide

Operating Instructions
P0250 Mini Hygro-Thermometer
Congratulations on your purchase of the P0250 Mini
Hygro-Thermometer. You have acquired a precision
electronic instrument for measuring the temperature,
humidity and the current highest and lowest values of
both. It is ideal for use inside a wine cellar, car,
greenhouse, humidor or refrigerator. This unit will
provide you with years of service if cared for properly.
Please read these operating instructions thoroughly
before use.
Use:
• Open the battery compartment by pushing the cover
on the back of the instrument downwards as
indicated by the arrow. Remove the battery safety
strip, replace battery (positive (+) side up) and
remove the protection sheet on the display. The
instrument is now ready for use.
• The display now shows the current temperature in °F
and the relative humidity in %.
• Displaying maximum/minimum values:
a. When you press the MAX/MIN button, the
highest values since the unit was last reset
appear. This display will inform you of the
highest temperature and humidity the unit has
measured since the last reset.
b. Pressing the same button again displays the
lowest values since the unit was last reset.
c. To return to current values, press the MAX/MIN
button again.
• Resetting the MAX/MIN memory to the present
values:
a. Press the CLEAR button for 1 second when in
MAX or MIN mode.
b. Note that pressing the CLEAR button while in
normal mode will have no effect.
• The unit can be hung using the enclosed foam tape,
magnetic strips, or set on a table or desk using the
fold out stand.
• When the display dims or the reading is erratic,
replace the battery with an LR44 or AG13 type
button cell (positive (+) side up). Please dispose of
exhausted batteries properly.
Specifications:
Limits: Temperature: 14 °F - 140 °F
Humidity: 10% to 99% R.H.
Maximum Error: +/- 1.8 °F within 14 °F to 122 °F
+/- 2 °F otherwise
+/- 5% R.H. within 25% to 95%
R.H. and 32 °F to 122 °F
+/- 6% R.H. otherwise
Battery: LR44/AG13 Button Cell
Applications:
Humidor
A cigar is to be savored. The subtle flavor of each cigar is a signature
of the region from which it hails. The best method of preserving this
intended flavor is the humidor, but your humidor might not be doing
the job it should be. Over humidifying can lead to improper burning
and mildew, while under humidifying will rob your cigars of their true
flavor, making them taste harsh. Digital temperature and humidity
display shows the precise condition of your cigar’s home. The Max/Min
humidity and temperature display allows you to finally pin down the
exact day you need to refill your humidor’s water supply.
Common wisdom holds that humidors perform best when the humidity
is maintained at approximately 70%. Place the Mini Hygro-
Thermometer inside your Humidor using the enclosed foam tape or
magnetic strips. Or you can use the fold out stand.
Refrigerator
Recent news reports have illustrated the dangers of improperly storing
food. Illness and injury can result. Use the Mini Hygro-Thermometer
inside your refrigerator to monitor the maximum temperature your food
experiences. Since refrigerator compressors cycle on and off, the
interior temperature of your refrigerator can vary significantly. Most
units feature temperature controls but do not inform you of the
achieved temperature.
The Max/Min humidity and temperature display allows you to finally
find out just what effect those controls have. Common wisdom holds
that the temperature in refrigerator should not rise above 40 °F for an
extended period. Reset the Max/Min display, then allow your
refrigerator to cycle on and off. After a few hours or days you can
check the Max display to determine how well your refrigerator is
functioning.
! Be aware that holding the refrigerator door open for extended periods
will allow the air temperature inside to rise and may give misleading
readings.
! Do not affix the Mini Hygro-Thermometer to the inner walls or inner
door of the refrigerator. The surface of these walls is warmer than the
interior of your refrigerator. Placement on these walls will lead to
misleading readings. Use the fold out stand to place the unit in the
central area of your refrigerator.
Wine Cellar
When stored properly, wine can improve in quality over time. Proper
storage conditions are critical to this aging process. Use the Mini
Hygro-Thermometer in your wine storage area to monitor these
conditions. The Max/Min display will allow you to check up on ever
changing temperature and humidity conditions. Common wisdom
holds that temperatures between 52 and 55 °F and humidity between
50 % and 80 % are best for wine. Bottles should be stored on their
side to keep the bottom of their corks moist. Humidity keeps the top of
the corks moist. Dry corks allow a poor seal causing evaporation and
air exposure.
Attach the Mini Hygro-Thermometer to your Wine Cellar wall using the
enclosed foam tape or magnetic strips. Or you can use the fold out
stand.
! If you have a refrigerator-style Wine Cellar do not affix the Mini
Hygro-Thermometer to the inner walls or inner door of the refrigerator.
The surface of these walls is warmer than the interior of your
refrigerator. Placement on these walls will lead to misleading readings.
Use the fold out stand to place the unit in the central area of your
refrigerator.