Caliber IV User Manual

Caliber IV™ Digital

Hygrometer/Thermometer

User Manual

Thank you for purch asin g th e Calibe r IV ™ di gita l
hygrometer and thermometer. We are certain that you will find

this is the most dependable and accurate unit available in the
consumer market . To maintain your hygrometer in optimal
working order, we recommend that you review this manual
thoroughly to understand how to use the advanced features of the
Caliber IV™.

1. Humidity Reading

2. Temperature Reading

3. Set

4. Max/Min/Clear

5. Fahrenheit/Celsius

6. Battery Tray

7. Magnetic Mount

Getting Started

1. Slide the battery tray out to insert the battery plus side up.
This will activate the display and begin the collection of readings.

2. Mount the unit onto the desired location. The best location is
in a central area where the airflow to the unit will not be
blocked. To attach the magnet mount to a surface, first ensure that
the surface is clean and free of any dust or other debris. For best
results, use an alcohol swab to clean the area where the adhesive
will be applied. Remove the backing paper from the adhesive disc
on the back of the magnet and apply firm pressure to hold the
magnet in place for about 30 seconds. Allow the adhesive to dry
for at least 24 hours before attaching the hygrometer.

Switching Between Celsius & Fahrenheit

To switch the display between Fahrenheit and Celsius temperature
readings, move the Fahrenheit/Celsius Switch back and forth.

MAX/MIN Recording & Display

The Caliber IV™ will record the minimum and maximum values for

both humidity and temperature. To view the maximum values,
press the MAX/MIN/Clear button one time. The maximum value
will be displayed with the word MAX at the top of the temperature
reading.
To view the minimum values, press the MAX/MIN/Clear button
two times. The minimum value will be displayed with the word
MIN at the top of the temperature reading.
To reset the values, while viewing either the MAX or MIN value,
press and hold the MAX/MIN/Clear button for about 5 seconds.
When the display shows empty values, that MAX or MIN value has
been reset. Both values reset independently. Removing or
replacing the battery will also reset both the minimum and
maximum values.

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79 Heisser Court

Farmingdale, NY 11735

www.cigaroasis.com

Calibrating the Humidity Display

Your hygrometer is factory calibrated and should not need any
further adjustments. The following instructions should be
performed only to correct an error in calibration.

1. Test the humidity display settings by placing the Caliber IV™

next to another unit that is known to be accurate.

2. Determine the amount o f calibration needed by finding the
difference bet ween the di splay value and the ex pected va lue.
For example, if you are expecting 70% but your unit displays 71%,
the difference in calibration is 71-70 = 1. If you need the display
lower as in this example, change the calibration by -1%. If you need
the display higher, add (+) the value.

3. Press the Set button for 3 seconds to p lace the unit into
calibration mode.

4. In calibration mode, you will see the current adjustment setting
flashing on the di splay. If this is th e first time y ou are
calibrating your unit, it will show 0%. If you have already
calibra ted the unit previously , you will see the cur rent
adjustment.

5. Press the Min/Max/Clear button to adjust the display based
on your calibration. Pressing the button once will change the
adjustment by 1%. The Caliber IV™ adjustment range is +/-6%
in the sequence: 0, +1, +2, +3, +4, +5, +6, -6, -5, -4, -3, -2, -1, 0.

6. When you have completed your adjustment, press the Set
button o ne more t ime and it wil l take the unit o ut o f
calibration mode. If you leave the unit in calibration mode for more
than one minute without pressing any buttons, the unit will
automatically will change back to operations mode.

Restoring Factory Calibration

To restore your Caliber IV back to factory calibration, simply
follow the calibration instructions above and adjust the display
back to 0%. This will restore the unit back to factory calibration.

Limited Warranty

The Caliber IV™ is covered by a limited warranty against defects
from materials or workmanship for a full 1 Year with proof of
purchase. Any misuse or excessive wear and tear is not covered
under the limited warranty.

Contact Information

If you have any questions or warranty inquiries please call us
directly at 516-520-5258 or email [e-mail].

V2.18