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Microlife Thermometer NC 150 Manual

Microlife Thermometer NC 150 Manual Image

Microlife NC 150





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Guarantee Card

Name of Purchaser _________________________
Serial Number        _________________________
Date of Purchase   _________________________
Specialist Dealer    _________________________

Microlife Non Contact Thermometer NC 150

  1. Measuring sensor
  2. Tracking light
  3. Display
  4. START button
  5. ON/OFF button
  6. Mode switch
  7. Battery compartment cover
  8. M-button (memory)
  9. All segments displayed
  10. Memory
  11. Ready for measuring
  12. Measurement complete
  13. Body mode
  14. Object mode
  15. Low battery indicator
  16. Changing between Celsius and Fahrenheit
  17. Recall mode
  18. Recall the last 30 readings
  19. Measured temperature too high
  20. Measured temperature too low
  21. Ambient temperature too high
  22. Ambient temperature too low
  23. Error function display
  24. Blank display
  25. Flat battery
  26. Date/Time
  27. Beeper function setting
  28. Replacing the battery

Read the instructions carefully before using this device.

Type BF applied part

Keep dry

This Microlife thermometer is a high quality product incorporating the latest technology and tested in accordance with international standards. With its unique technology, this device can provide a stable, heat-interference-free reading with each measurement. The device performs a self-test every time it is switched on to always guarantee the specified accuracy of any measurement. This Microlife thermometer is intended for the periodic measurement and monitoring of human body temperature.
This thermometer has been clinically tested and proven to be safe and accurate when used in accordance to the operating instruction manual.
Please read through these instructions carefully in order for you to understand all functions and safety information.

1. The Advantages of this Thermometer

Measures in a matter of seconds
The innovative infrared technology allows the measurement without even touching the object. This guarantees safe and sanitary measurements within seconds.

Multiple uses (wide range of measurement)
This thermometer offers a wide range of measurement from 0.1 – 99.9 °C / 32.2 – 211.8 °F, meaning the unit can be used to measure body temperature or it also has a feature allowing it to be used to measure surface temperature of the following examples:

  • Milk surface temperature in a baby’s bottle
  • Surface temperature of a baby’s bath
  • Ambient temperature

Accurate and reliable
The unique probe assembly construction incorporates an advanced infrared sensor, ensuring that each measurement is accurate and reliable.

Gentle and easy to use

  • The ergonomic design enables simple and easy use of the thermometer.
  • This thermometer can even be used on a sleeping child without causing any interruption.
  • This thermometer is quick, therefore child-friendly.

Multiple readings recall
Users will be able to recall the last 30 readings with a record of both time and date when entering the recall mode, enabling efficient tracking of temperature variations.

Safe and hygienic

  • No direct skin contact.
  • No risk of broken glass or mercury ingestion.
  • Completely safe for use on children.

Fever alarm
10 short beeps and a red LCD backlight alert the patient that he/ she may have a temperature equal to or higher than 37.5 °C.

2. Important Safety Instructions

  • Follow instructions for use. This document provides important product operation and safety information regarding this device. Please read this document thoroughly before using the device and keep for future reference.
  • This device may only be used for the purposes described in these instructions. The manufacturer cannot be held liable for damage caused by incorrect application.
  • Never immerse this device in water or other liquids. For cleaning please follow the instructions in the «Cleaning and Disinfecting» section.
  • Do not use this device if you think it is damaged or notice anything unusual.
  • Never open this device.
  • A basic physiological effect called vasoconstriction can occur in the early stages of fever, resulting in a cool skin effect. The recorded temperature using this thermometer can, therefore, be unusually low.
  • If the measurement result is not consistent with the patient’s finding or unusually low, repeat the measurement every 15 minutes or double check the result by another core body temperature measurement.
  • This device comprises sensitive components and must be treated with caution. Observe the storage and operating conditions described in the «Technical Specifications» section.
  • Ensure that children do not use this device unsupervised; some parts are small enough to be swallowed.
  • Do not use this device close to strong electromagnetic fields such as mobile telephones or radio installations. Keep a minimum distance of 3.3 m from such devices when using this device.
  • Protect it from:
    – extreme temperatures
    – impact and dropping
    – contamination and dust
    – direct sunlight
    – heat and cold
  • If the device is not going to be used for a prolonged period the batteries should be removed.

  WARNING: The measurement results given by this device is not a diagnosis. It is not replacing the need for the consultation of a physician, especially if not matching the patient’s symptoms. Do not rely on the measurement result only, always consider other potentially occurring symptoms and the patient’s feedback. Calling a doctor or an ambulance is advised if needed.

3. How this Thermometer measures Temperature

This thermometer measures infrared energy radiated from the forehead as well as objects. This energy is collected through the lens and converted to a temperature value.

4. Control Displays and Symbols

  • All segments displayed 9: Press the ON/OFF button 5 to turn on the unit; all segments will be shown for 1 second.
  • Ready for measuring 11: When the unit is ready for measuring, the «°C» or «°F» icon will keep flashing while the mode icon (body or object) will be displayed.
  • Measurement complete 12: The reading will be shown on the display 3 with the «°C» or «°F» icon and the mode icon steady. The unit is ready for the next measurement as soon as the «°C» or «°F» icon is flashing again.
  • Low battery indicator 15: When the unit is turned on, the «» icon will keep flashing to remind the user to replace the batteries.

5. Setting Date, Time and Beeper Functions

Setting the date and time

  1. After the new batteries are fitted, the year number flashes in the display 26. You can set the year by pressing the START button 4. To confirm and then set the month, press the M-button 8.
  2. Press the START button 4 to set the month. Press the M-button 8 to confirm and then set the day.
  3. Follow the previously mentioned instructions to set the day, 12 or 24 hour mode, hours and minutes.
  4. Once you have set the minutes and pressed the M-button 8, the date and time are set and the time is displayed.

  If no button is pressed for 20 seconds, the device automatically switches to ready for measuring 11.

Cancel time setup: Press the ON/OFF button 5 during time setup. The LCD will show Date/Time icons with «–:–». After that press the ON/OFF button 5 to start the measurement. If no further action is taken within 20 seconds, the device will automatically turn off.

Change current date and time: Press and hold the M-button 8 for approx. 3 seconds until the year number starts to flash 26. Now you can enter the new values as described above.

Setting the beeper

  1. When the device is switched off, press and hold the ON/OFF button 5 for 5 seconds to set the beeper 27.
  2. Press the ON/OFF button 5 again to either turn the beeper on or off. The beeper is activated when the beeper icon 27 is not crossed-out.

If no button is pressed for 5 seconds, the device automatically switches to ready for measuring 11.

6. Changing between Body and Object Mode

For changing from body to object mode, slide the mode switch 6 at the side of the thermometer downwards. For switching back to body mode, slide the switch up again.

7. Directions for Use

Measuring in body mode

  1. Press the ON/OFF button 5. The display 3 is activated to show all segments for 1 second.
  2. When the «°C» or «°F» icon is flashing, a beep sound is heard and the thermometer is ready for measuring 11.
  3. Aim the thermometer at the center of the forehead with a distance of no more than 5 cm. Please remove any hair, sweat or dirt from the forehead before measuring to improve the accuracy of the readings.
  4. Press the START button 4 and ensure that the activated blue tracking light is aimed at the center of the forehead. After 3 seconds a long beep will verify the completion of measurement.
  5. Read the recorded temperature from the LCD display.

Measuring in object mode

  1. Follow steps 1-2 above, then aim the thermometer at the center of the object you want to measure with a distance of no more than 5 cm. Press the START button 4. After 3 seconds a long beep will verify the completion of measurement.
  2. Read the recorded temperature from the LCD display.


  • Patients and thermometer should stay in similar room condition for at least 30 minutes.
  • Don’t take a measurement while or immediately after nursing a baby.
  • Don’t use the thermometer in high humidity environments.
  • Patients should not drink, eat or exercise before/while taking the measurement.
  • Don’t move the measurement device from the measuring area before hearing the termination beep.
  • 10 short beeps and a red LCD backlight alert the patient that he/she may have a temperature equal to or higher than 37.5 °C.
  • Always take the temperature in the same location, since temperature readings may vary according to locations.
  • Doctors recommend rectal measurement for newborn infants within the first 6 months, as all other measuring methods might lead to ambiguous results. If using a non contact thermometer on those infants, we always recommend verifying the readings with a rectal measurement.
  • In the following situations it is recommended that three temperatures are taken with the highest one taken as the reading:
  1. Children under three years of age with a compromised immune system and for whom the presence or absence of fever is critical.
  2. When the user is learning how to use the thermometer for the first time until he/she has familiarized himself/herself with the device and obtains consistent readings.
  3. If the measurement is surprisingly low.
  • Readings from different measuring sites should not be compared as the normal body temperature varies by measuring site and time of day, being highest in the evening and lowest about one hour before waking up.
    Normal body temperature ranges:
    – Axillar: 34.7 – 37.3 °C / 94.5 – 99.1 °F
    – Oral: 35.5 – 37.5 °C / 95.9 – 99.5 °F
    – Rectal: 36.6 – 38.0 °C / 97.9 – 100.4 °F
    – Microlife NC 150: 35.4 – 37.4 °C / 95.7 – 99.3 °F

8. Changing between Celsius and Fahrenheit

This thermometer can display temperature readings in either Fahrenheit or Celsius. To switch the display between °C and °F, simply turn OFF the unit, press and hold the START button 4 for 5 seconds; after 5 seconds, the current measurement scale («°C» or «°F» icon) will flash on the display 16. Change the measurement scale between °C and °F by pressing the START button 4. When the measurement scale has been chosen, wait for 5 seconds and the unit will automatically enter the «ready for measuring» mode.

9. How to recall 30 readings in Memory Mode

This thermometer can recall the last 30 readings with a record of both time and date.

  • Recall mode 17: Press the M-button 8 to enter recall mode when the power is off. The memory icon «M» will flash.
  • Reading 1 – the last reading 18: Press and release the M-button 8 to recall the last reading. Number «1» and a flashing «M» are displayed.
  • Reading 30 – readings in succession: Press and release the M-button 8 consecutively to recall the last 30 readings in succession.

Pressing and releasing the M-button 8 after the last 30 readings have been recalled will resume the above sequence from reading 1.

10. Error Messages

  • Measured temperature too high 19: Displays «H» when measured temperature is higher than 43.0 °C / 109.4 °F in body mode or 99.9 °C / 211.8 °F in object mode.
  • Measured temperature too low 20: Displays «L» when measured temperature is lower than 34.0 °C / 93.2 °F in body mode or 0.1 °C / 32.2 °F in object mode.
  • Ambient temperature too high 21: Displays «H» and when ambient temperature is higher than 40.0 °C / 104.0 °F.
  • Ambient temperature too low 22: Displays «L» and when ambient temperature is lower than 15.0 °C / 59.0 °F in body mode or lower than 5.0 °C / 41.0 °F in object mode.
  • Error function display 23: The system has a malfunction.
  • Blank display 24: Check if the batteries have been inserted correctly. Also check polarity (<+> and <->) of the batteries.
  • Flat battery indicator 25: If only «» icon is shown on the display, the batteries should be replaced immediately.

11. Cleaning and Disinfecting

Use an alcohol swab or cotton tissue moistened with alcohol (70% Isopropyl) to clean the thermometer casing and the measuring sensor. Ensure that no liquid enters the interior of the device. Never use abrasive cleaning agents, thinners or benzene for cleaning and never immerse the device in water or other cleaning liquids. Take care not to scratch the surface of the sensor lens and the display.

12. Battery Replacement

This device is supplied with 2 new, long-life 1.5V, size AAA batteries. Batteries need replacing when this icon «» 25 is the only symbol shown on the display.
Remove the battery cover 28 by sliding it in the direction shown. Replace the batteries ­ ensure correct polarity as shown by the symbols in the compartment.

Batteries and electronic devices must be disposed of in accordance with the locally applicable regulations, not with domestic waste.

13. Guarantee

This device is covered by a 5 year guarantee from the date of purchase. During this guarantee period, at our discretion, Microlife will repair or replace the defective product free of charge. Opening or altering the device invalidates the guarantee.
The following items are excluded from the guarantee:

  • Transport costs and risks of transport.
  • Damage caused by incorrect application or non-compliance with the instructions for use.
  • Damage caused by leaking batteries.
  • Damage caused by accident or misuse.
  • Packaging/storage material and instructions for use.
  • Regular checks and maintenance (calibration).
  • Accessories and wearing parts: Batteries, Probe cover (optional).

Should guarantee service be required, please contact the dealer from where the product was purchased, or your local Microlife service. You may contact your local Microlife service through our website:
Compensation is limited to the value of the product. The guarantee will be granted if the complete product is returned with the original invoice. Repair or replacement within guarantee does not prolong or renew the guarantee period. The legal claims and rights of consumers are not limited by this guarantee.

14. Technical Specifications

Type: Adjusted mode Non Contact Thermometer NC 150

Measuring site: Forehead

Reference body site: Sublingual

Measurement range: Body mode: 34.0 – 42.2 °C / 93.2 – 108.0 °F, Object mode: 0.1 – 99.9 °C / 32.2 – 211.8 °F

Resolution: 0.1 °C / °F

Measurement accuracy (Laboratory): ±0.2 °C, 36.0 ~ 39.0 °C / ±0.4 °F, 96.8 ~ 102.2 °F

Display: Liquid Crystal Display, 4 digits plus special icons

Clinical results: Repeatability: 0.26 °C, Bias: 0.08 °C, Limits of agreement: 1.13 °C

Acoustic: The unit is turned ON and ready for the measurement: 1 short beep.
Complete the measurement: 1 long beep (1 sec.) if the reading is less than 37.5 °C / 99.5 °F, 10 short «beep» sounds, if the reading is equal to or greater than 37.5 °C / 99.5 °F.
System error or malfunction: 3 short «bi» sounds.

Memory: 30 readings recall in the memory mode with a record of both time and date.

Backlight: The display light will be GREEN for 1 second, when the unit is turned ON.
The display light will be GREEN for 5 seconds, when a measurement is completed with a reading less than 37.5 °C / 99.5 °F.
The display light will be RED for 5 seconds, when a measurement is completed with a reading equal to or higher than 37.5 °C / 99.5 °F.

Operating conditions: Body mode: 15 – 40.0 °C / 59 – 104.0 °F, Object mode: 5 – 40.0 °C / 41 – 104.0 °F

Storage conditions: -25 – +55 °C / -13 – +131 °F, 15 – 95 % relative maximum humidity

Automatic Switch-off: Approx. 1 minute after last measurement has been taken.

Battery: 2 x 1.5 V alkaline batteries; size AAA

Battery lifetime: approx. 2000 measurements (using new batteries)

Dimensions: 141.1 x 43.3 x 36.9 mm

Weight: 90 g (with batteries), 67 g (w/o batteries)

IP Class: IP21

Reference to standards: ISO 80601-2-56; IEC 60601-1; IEC 60601-1-2 (EMC); IEC 60601-1-11

Expected service life: 5 years or 12000 measurements

This device complies with the requirements of the Medical Device Directive 93/42/EEC.
Technical alterations reserved.
According to the Medical Product User Act a biennial technical inspection is recommended for professional users. Please observe the applicable disposal regulations.


Detailed user information about our thermometers and blood pressure monitors as well as services can be found at www.microlife.com.

Microlife AG
Espenstrasse 139
9443 Widnau / Switzerland

Microlife UAB
P. Luksio g. 32,
08222 Vilnius


IB NC 150 S-V11 1921
Revision Date: 2021-04-19

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