Fast Read Digital Clinical Thermometer KD-2150 Instruction Manual

Fast Read Digital Clinical Thermometer KD-2150 Instruction Manual & troubleshooting

Fast Read Digital Clinical Thermometer

Please read carefully before using

NOTE: This Base is specifically calibrated to be used with the Probes that came with it and should not be intermixed with other units.


  1. Fast oral and rectal temperature measurement in around 10 seconds with proper use.
  2. ThermoTrend helps you better understand your health by showing the trend of last 3 temperatures measured.
  3. Memory displays for the last temperature taken.
  4. Very sensitive unit, best for quick oral or rectal measurement.
  5. Easy to read digital LCD ( liquid crystal display ).
  6. Compact, accurate and durable LSI ( large scale integration ) unit.
  7. Temperature can be taken orally or rectally.
  8. If the thermometer is inadvertently left on after temperature stabilization, it will
    automatically shut off in about 30 seconds.
  9. Small, light weight unit. Universal use for the whole family, especially ideal for children.
  10. ABS resin body presents no hazard compared to broken mercury in glass thermometers.
  11. Low battery indicator: when the symbol ” BATTERY” appears, the battery needs to be replaced.


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  1. Do not boil the probe or subject it to extremely hot water. Instead, clean and disinfect
    the probe by wiping it with a soft cloth slightly dampened with rubbing alcohol.
  2. Do not drop the thermometer or expose to heavy shock. The unit is not shockproof.
  3. Do not bite the probe.
  4. Do not store the unit in direct sunlight, or where there may be high temperatures, high humidity or excessive dust. Performance may be degraded.
  5. Stop using the thermometer if it operates erratically or if it appears to be malfunctioning.
  6. Keep out of reach of unsupervised children.
  7. Clean the thermometer probe after each use and before storing.
  8. Do not attempt to disassemble the unit except to replace the battery.
    Unit has no user serviceable parts.
  9. If the thermometer has been stored at below-freezing temperatures, allow it to warm naturally to room temperature before using.
  10. Performance of the device may be degraded if operated or stored outside stated
    temperatures and humidity ranges or if the patient’s temperature is below the
    ambient (room) temperature.


  1. When the symbol “BATTERY ” appears, the battery needs to be replaced.
  2. Gently press down on the battery cover as you slide it off the top (see reference below).
    Remove battery from the battery holder with a non-metal instrument. Avoid using any
    sharp metal object.
  3. Discard old battery.
  4. Replace the battery with a 3V, CR2032 lithium type or equivalent in the chamber with the
    negative (-) side down and the positive (+) side up.
  5. Gently slide the cover back into place until it clicks securely into place.
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  1. Discard old battery, out of reach of young children. Swallowing the battery may be fatal. If the battery is swallowed, contact a hospital immediately to have it removed.
  2. Do not dispose of the battery in a fire. It may explode.
  3. For battery disposition, please consider your local disposal laws and regulations.


  1. Disinfect the probe with rubbing alcohol before using.

2. Press and release the ON/OFF button. The display will read

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with FeverTeller flashing (Red→Orange→Green).

3. The display will show L°F (L°C) with the °F (°C) flashing.

4. Place the probe in the appropriate position (oral or rectal).

5. Once the degree sign °F(°C) on the display stops flashing, the correct temperature is
indicated and the FeverTeller color will light up according to the measured temperature. The temperature reading will not change after the °F(°C) stops flashing.

6. The unit will automatically turn off after approximately 30 seconds. However, to prolong battery life, it is best to turn the thermometer off by pressing the ON/OFF button once the temperature has been noted.

Special Features:
Normal Temperature Alarm: An alarm will sound when the peak temperature has registered and is ready-to-read. The “Normal Temperature” alarm (four quick beeps followed by a pause) will sound repeatedly for approximately 5 seconds.

Last-Temperature Memory Recall: With the unit off, press and hold the ON/OFF button for approximately 2 seconds. The display of 188.8 will change to show the last measured temperature. This reading is displayed as long as the button is held down. After the button is released, wait for the “L” to appear, then the thermometer will be in “ready-to-measure” mode and the recalled temperature will be erased.

Thermo Trend : will help you keep track of trends in your last three temperature measurements. For your reference, you may view trending twice after turning on the unit; (1) after last temperature memory recall and (2) after taking a new measurement. Both times, it will show for 4 seconds. The 3 bars represent your last 3 measurements with the far right being the most recent. If your measurement is higher or lower than the previous reading by at least 0.4°F (0.2°C), the bar will move up or down accordingly. This feature enables you to keep track of rising or falling temperature trends. For example:

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For Models with Fever Alarm : If the temperature registers higher than 99.5°F (37,01C), the fever alarm (a quick beeping sound which occurs continuously for about 10 seconds) mil sound when the peak temperature has registered. Also, the result will keep flashing until the thermometer is turned off.

To change the scale from Fahrenheit (°F) to Coat/grade (°C): After turning the thermometer on, immediately press the ON/OFF button agar and hold until the °F changes to a C. After releasing the ON/OFF button the display will show an L with a flashing °F or `C. The device is now ready to record and display a temperature. Follow the same directions to switch back from Centigrade to Fahrenheit.

NOTE : Always disinfect the thermometer before and after each use

NOTE: In Step 2, if the room temperature is greater than 89.6°F (32.0°C), it will be displayed rather than L °F (CC).

NOTE : In Step 3, you may put a sanitary plastic probe shield on the sensor tip to help prevent cross-infection and contamination. Use of the probe cover may result in a 0.2°F (a lt) difference from actual temperature. Dispose of any used probe shield and store tne unit in a safe place.


THE TAKING OF BODY TEMPERATURES: Change in body temperature is one of the
most important indicators of illness, therefore, it is important that accurate temperatures be taken. Even though the digital thermometer is used in a similar manner to the glass thermometer, it is important that the simple instructions for use of this thermometer be followed closely and that the person taking the temperature understands body temperature.

BODY TEMPERATURE: A person’s body temperature will usually be several tenths to one full degree lower in the morning than it is in late afternoon. Therefore, if your temperature is 97.9°F (36.6°C) in the morning, it could be 98.4°F (36.9°C) or more in the late afternoon and still be normal. To determine what your normal body temperature is you should take your temperature both in the early morning and in the late afternoon over several days. Children have the same normal temperature range as adults. A fever for both children and adults is typically defined as a temperature over 99.5°F (37.5°C) (oral reading). Exercise, excessive clothing, hot bath, hot weather, warm food and drink can cause mild elevations of up to 100.4°F (38°C) to 101.1°F(38.4°C) in oral temperature. If you suspect one of these to be the cause of
a n e l e v a t e d r e a d i n g , e l i m in a t e t h e p ossible cause and retake the temperature in half an hour.


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Place the probe well under the patient’s tongue, resting in a heat
pocket (see reference at right). Instruct the patient to keep their
mouth closed while the thermometer is reading. A normal
temperature by this method is usually considered between
96.8°F to 99.5°F (36.0°C to 37.5°C).

If rectal temperature is recommended by your doctor, you may use a probe cover. Insert thermometer into the probe cover and lubricate with a water soluble jelly for easier insertion. Do not use petroleum jelly. Insert tip of probe no more than 1/2 inch into the rectum. STOP if you meet any resistance. The sensor unit is on the very tip of the probe so there is no need to insert it deep into the rectum. In general, the rectal temperature is around 1 – 2 °F higher than oral temperature ( 0.5 – 1 °C).


To clean the thermometer, wash the tip with a solution of mild detergent and warm water. Disinfect the thermometer by wiping the sensor and lower stem with a cloth dampened in a household antiseptic solution such as rubbing alcohol.

FCC Statement


Operation is subject to the following two conditions: 1) This device may not cause harmful interference, and 2) this device must accept any interference received, including interference that may cause undesired operation.

This product has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules.

These limits are designed to provide reasonable protection against harmful interference in a residential installation. The product generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If the product does cause harmful interference to radio or televsion reception, which can be determined by turning the product on and off, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna
  • Increase the separation between the product and the receiver.
  • Connect the product into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled “Digital Apparatus”, ICES-003 of the Canadian Department of Communications. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.


This thermometer (battery excluded) is guaranteed for one year from the date of purchase against manufacturer’s defect under normal, household use and without evidence of tampering.

*Device shows any signs of tampering or attempted modification.
*Evidence of improper handling or storing, such as dropping, heat, liquid or cleaner damage.
*Damage caused by natural disasters (fire, flood, earthquake, lightening).
*No receipt or proof of purchase showing date of purchase.
Following the directions closely will en sure years of dependable operation. If the thermometer does not function properly, first check the battery and replace if necessary (see battery replacement instructions).

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