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SAFETY INFORMATION:

High, prolonged fever requires medical attention especially for young children. Please contact your physician.

Do not allow children to take their temperatures unattended.

Read the enclosed instructions carefully to ensure accurate temperature readings. Temperature readings are
affected by many factors including exercise, drinking hot or cold beverages prior to taking a reading as well
as technique.

Do not allow children to walk or run when taking a temperature.

SPECIAL PRODUCT FEATURES:

ºF

symbol stops flashing when the highest temperature is reached

Waterproof

... for Easy Cleaning.

Long Life, 

Non-Replaceable

Battery (approximately 3000 temperatures). 

Low battery indicator “

”.

Auto off

after approximately 10 minutes.

Oral, Rectal or Underarm use.

HOW TO CARE FOR THIS PRODUCT:

Use of probe covers is recommended to help avoid spreading germs, and to keep the thermometer clean.
The thermometer should be cleaned after use even when probe covers are used.

Clean the thermometer tip and probe using isopropyl alcohol or soap and water.

Do not store or keep in direct sunlight or at high temperatures.

Do not drop the thermometer, as this may damage the unit.

WHAT IS A “NORMAL” TEMPERATURE?:

Temperature readings vary in different individuals. A normal temperature refers to each individual’s average
temperature while they are well. Normal average temperatures range form 97

°F/36.1°C to 100°F/37.7°C when

taken orally. From an oral temperature

, you may calculate a rectal equivalent temperature by adding 1°F/0.5°C

while an underarm temperature requires subtracting 1

°F/0.5°C. For example, if your oral temperature is 98.6°F/37°C

this is the same as a rectal temperature of 99.6

°F/37.5°C or an underarm temperature of 97.6°F/36.4°C.

HOW TO TAKE TEMPERATUR

E:

Place a probe cover carefully over the tip, (figure 1). Select oral, underarm or
rectal as your measurement site based on the individual.

Push the on/off button located on the large end of the thermometer. The
display will read: “188.8°

F

”. This is a function check indicating the unit is

working properly. The thermometer will read L

°F and begin measuring 

temperature when exposed to body heat.

The 

°F symbol will continuously flash until completion of the temperature taking process. Please note that “

indicates a low battery. See instructions for low battery indicator (on next page). Do not expect an accurate
temperature reading if this low battery indicator is present. An “ERR” message in the window indicates
your unit is not functioning properly.

R

COMPACT DIGITAL THERMOMETER

Model MC-110

DISPLAY WINDOW

SENSOR TIP

Figure 1

ON/OFF BUTTON

ORAL USE: (for children 4 years and older)

Do not drink hot or cold fluids, exercise or perform other activities that will raise or lower
temperature readings when compared to your normal, average temperature. The mouth
should remain closed up to 5 minutes before attempting a reading.

Place the probe tip well under the tongue as indicated by the “

”. (figure 2) Instruct

children not to bite down on the probe.

The peak temperature should be reached in approximately 60 seconds. Opening the
mouth or improper placement of the probe tip could result in a longer time for a reading.

When peak temperature is reached, the °F symbol will stop flashing. 

Please note: When the °F stops

flashing and the display reads a consistent temperature, the peak temperature has been reached. 
This thermometer does not have a beeper function.

Read and record the temperature and time for reference.

Push the on/off button to turn the unit off. This will prolong the battery life.

RECTAL USE:

Commonly used for young children or when it is difficult to take an oral or underarm temperature.

After placing the probe cover on the thermometer, lubricate with a water-soluble gel or petroleum jelly.

Gently insert the probe tip no more than 1/2 inch or 1.3 cm into the rectum. Do not force the tip into
the rectum if resistance is encountered.

Dispose of the used probe cover and wash the thermometer as recommended.

The peak temperature should be reached in approximately 40 seconds.

UNDERARM (AXILLARY) USE:

Wipe underarm with a dry towel.

Place probe tip in armpit and bring arm down against the body (figure 3).
The probe should be pointing upward in the same direction as your body if possible.

The time required for an accurate underarm temperature may be 90 seconds or longer
depending on placement of the probe and closure of the arm against the body.

LOW BATTERY INDICATOR:

When the “

” appears to the right of the display, the battery is exhausted. Dispose of the thermometer as 

the battery is non-replaceable

. Be aware of any local regulations concerning disposal of this product. The

battery cover is sonic-welded with the main housing of the thermometer. The battery is well sealed inside 
the thermometer to reduce the risk of being swallowed by children.

MEASUREMENT RANGE

90ºF TO 109.9ºF/32.2ºC TO 43.2ºC

MEASUREMENT ACCURACY

0.2ºF/0.1ºC between 96ºF TO 106ºF/35.6ºC to 41.1ºC

Figure 2

Figure 3

Distributed by:

OMRON HEALTHCARE, INC.

300 Lakeview Parkway
Vernon Hills, IL 60061
www.omronhealthcare.com

110INST Rev A
Made in China

LIMITED WARRANTIES

Your Omron MC-110 Compact Digital Thermometer, excluding the battery, is warranted to be free from defects in 
materials and workmanship appearing within 1 year, when used in accordance with the instructions provided with the
thermometer. The above warranties extend only to the original retail purchaser.

We will, at our option, repair or replace without charge the thermometer covered by the above warranties. Repair or
replacement is our only responsibility and your only remedy under the above warranties.

To obtain warranty service, ship the thermometer and all of the components, together with proof of purchase and a note
explaining the problem with $5.00 for return shipping and insurance to:

Omron Healthcare, Inc.
Attn: Repair Dept.
300 Lakeview Parkway
Vernon Hills, IL 60061

Be sure to include the model number, your name and your phone number on the enclosed note and any other correspondence.

ALL IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF 
MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, ARE LIMITED TO THE DURATION
OF THE APPLICABLE WRITTEN WARRANTY ABOVE.

Some states do not allow limitations on how long an

implied warranty lasts, so the above limitation may not apply to you.

OMRON SHALL NOT BE LIABLE FOR LOSS OF USE OR ANY OTHER INCIDENTAL, CONSEQUENTIAL
OR INDIRECT COSTS, EXPENSES OR DAMAGES.

Some states do not allow limitations on how long an implied

warranty lasts, so the above limitation may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which may vary from state to state.

FOR CUSTOMER SERVICE (U.S. & Canada):

Visit our website:

www.omronhealthcare.com

Call toll free:

1-800-634-4350

Thank you for purchasing the Omron Compact Digital Thermometer.

Fill-in for future reference

DATE PURCHASED: ________________________

Staple your purchase receipt here.

The thermometer you purchased offers a safe, accurate and quick temperature reading. Select oral, rectal or 
axillary (underarm), as your measurement site. No need to worry about broken glass or mercury hazards. Your
temperature is affected by smoking, eating or drinking. 

Read this instruction manual completely before using

your Omron MC-110 Compact Digital Thermometer. 

We recommend you practice taking your temperature with

the thermometer. This way you will be confident in your technique when using the thermometer. Contact your
doctor if you have any questions regarding specific temperatures. 

This product is intended for home use only.

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