Manual

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Caliber IV

™

Digital Hygrometer/Thermometer

User Manual

Thank you for purchasing the Caliber IV

digital

hygrometer and thermometer.

We are certain that you will find

that 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

Product Features

1. Display

2. Set Button

3. Min/Max/Clear Button

4. Fahrenheit/Celcius Switch

5. Battery Tray

6. Magnet Mount

Getting Started

1. Remove the plastic tab sticking out of the battery tray. 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.

Min/Max Recording and Display

The Caliber IV

will record the minimum and maximum values

for both humidity and temperature. To view the maximum

values, press the Min/Max/Clear button one time. The

maximum value will be displayed with the word MAX at the top

right of the temperature reading.

To view the minimum values, press the Min/Max/Clear button

two times. The minimum value will be displayed with the word

MIN at the top right of the humidity reading.

To reset the values, while viewing either the MAX or MIN value,

press and hold the Min/Max/Clear button for about 5 seconds.

When the display shows empty values, that MAX or MIN value

has been reset. Both values are reset independently. Removing or

replacing the battery will also reset both the minimum and

maximum values.

Summary of content (2 pages)

PAGE 1
Caliber IV ™ Digital Hygrometer/Thermometer User Manual Thank you for purchasing the Caliber IVTM digital hygrometer and thermometer. We are certain that you will find that 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 IVTM. Product Features 1. Display 2. Set Button 3. Min/Max/Clear Button 4.
PAGE 2
Calibrating the Humidity Display 1. Test the humidity display settings by placing the unit next to another unit that is known to be accurate or by using the Boveda One-Step Calibration Kit for at least 24 hours without disturbing the environment*. 2. Determine the amount of calibration needed by taking the display value and subtracting the expected value **. For example, if you are expecting 70% but your unit displays 71%, the amount of calibration needed is 71-70 = +1%. 3.