INSTRUCTION MANUAL
WDT404(Standard) & WDT505(Deluxe)
Thank you for purchasing this Welcare Digital Thermometer.
Please keep this instruction manual in a safe place where it is readily available.
Note: The illustrations in this manual may differ slightly from the product itself.
Read Instructions Carefully Before Use
Important Safety Information
Read this section thoroughly before using the product. Please ensure you observe the safety
instructions to avoid accidents, injury and damage.
Intended Purpose
• This product is intended for the measurement of human body temperature only.
It is designed for private use.
• The use of temperature readings for self-diagnosis is dangerous. Consult with a doctor
for the interpretation of results. Self-diagnosis may lead to the worsening of medical
conditions.
• This product is not intended for use by persons (including children) with limited physical,
sensory or mental abilities or lacking experience and/or knowledge, unless they are
supervised by a person responsible for their safety or have received and understand the
instructions/ safety warnings for use of the product from this person in advance.
Safety Warnings
• WARNING - KEEP BUTTON BATTERIES OUT OF REACH OF CHILDREN
• Button batteries are hazardous (whether the battery is new or used).
• Swallowing or insertion of a button battery into any part of the body can
cause serious injuries.
• If you suspect your child/a person has swallowed or inserted a button
battery inside their body, medical attention should be sought immediately. You can also call the
Poisons Information Centre on 13 11 26 (Australia) or 0800 764 766 (New Zealand) for 24/7
fast, expert advice.
• Dispose of products containing button batteries safely and according to current local regulations.
• Tell others about the risk associated with button batteries and how to keep their children safe.
• Keep the packaging, product and its components out of reach of children.
A high or prolonged fever requires medical attention, especially for young children.
Please contact a doctor.
• This product is for oral, rectal or underarm use only. DO NOT attempt to take temperatures at
other sites, such as in the ear, as it may result in false readings and may lead to injury.
• Oral use is only for ages 2+.
• Avoid using the product during or within 30 minutes after strenuous exercise; a shower, bath or
sauna; using a cold compress; heavy alcohol consumption; smoking and food or drink intake.
• DO NOT attempt measurements when the product is wet as inaccurate readings may result.
• DO NOT bite on the product.
• Avoid excessively bending the thermometric tip. DO NOT bend exi tip (WDT505) more than
45 degrees. DO NOT bend the rigid tip (WFT404).
• DO NOT force the product into the rectum. Stop insertion and abort the measurement when
pain is present.
• DO NOT attempt rectal measurements on persons with rectal disorders.
• DO NOT drop, step or place heavy objects on the product, as it is a precision instrument.
• DO NOT store the product in the storage case when it is damp. Wipe it off with a clean
dry soft cloth rst.
• DO NOT attempt to open or disassemble the product.
• DO NOT place product near extreme heat as it may explode.
• This product is equipped with a Zinc Manganese Alkaline Button Battery. Failure to follow
these instructions could cause the battery to leak, become hot, explode or ignite and cause
injury and/or damage.
• DO NOT expose to temperatures over 55 ˚C.
• DO NOT use with other electrical or medical equipment simultaneously.
• DO NOT use within 30cm of a mobile device or a device that emits electromagnetic elds
as this may cause interference with the functioning of the products.
• DO NOT use or store the product in the following conditions:
– Near sources of heat, in hot water, direct sunlight or high temperature
– Moist or humid environments
– Dusty locations
– Near re, ammable gas, chemicals or oxygen rich environments
– Locations easily subject to vibrations or shock or in a pressurized container
– In high frequency or strong magnetic eld areas - e.g. surgical equipment,
MRI, CT, microwave oven
Package Contents
• 1 x Thermometer • 1 x Storage Case
• 1 x Battery (non-accessible) • 1 x Instruction Manual & Warranty Information
Digital Thermometer Components
Before using the Digital Thermometer
• Check the product is intact. DO NOT use if broken.
• Read the instruction manual thoroughly before taking the measurement.
• Allow product to rest for at least 30 minutes at room temperature (5˚C – 32˚C).
• The user must remain in a stable environment for at least 5 minutes prior to taking a reading.
• Test the user’s temperature when they are well so there is a comparison when they are unwell.
• Temperature readings are affected by many factors including physical exertion, the drinking
of hot or cold beverages before measurement, as well as measuring technique.
• Avoid using the product during or within 30 minutes after exercise; a shower, bath or sauna;
using a cold compress; heavy alcohol consumption; smoking and food or drink intake.
• Underarms must be clean and free of sweat, deodorant and scars, etc. for underarm use.
• Always make sure the thermometric sensor is clean before each use.
• When measuring the temperature of an infant, note that infant body temperature is generally
higher than adult body temperature and easily affected by external factors. For example, body
temperature tends to increase after nursing or crying. Therefore, it is recommended to take
measurements when the infant is calm.
Using the Digital Thermometer
The use of temperature readings for self-diagnosis is dangerous. Consult with a doctor for
the interpretation of results. Self-diagnosis may lead to the worsening of medical conditions.
Switching the measuring unit between °C and °F
• While the product is OFF, press and hold the ON/OFF button for approximately 2 seconds
until the measuring unit changes. The product will automatically save your choice once you
let go of the button and run a self-check before going into measurement mode.
Taking a Temperature Measurement
• Note: The ambient temperature for use must be between 5-32°C. This product is a maximum
thermometer, i.e. the displayed temperature can increase slightly if measurement continues
after the beep. Holding the product too long may cause a higher ambient temperature reading
of the probe. This could make the body temperature measurement lower than usual.
Before using, please disinfect the thermometric tip (refer to Cleaning section).
1. To turn on, press the
button
next to the screen; a short beep will
sound, indicating that the product is
operational.
6. Refer to Methods of measuring temperature section for placement instructions.
7. Keep the user still during the measurement.
8. During the measurement, the °C or °F symbol “ashes” and a temperature will be
displayed that will continue to change until a constant temperature is reached.
9. As soon as the constant temperature value is reached (approx. 10 seconds)*, a beep
will sound 10 times and the °C or °F symbol will stop ashing.
10. Once the beeping has stopped the measurement is completed. Remove the product
from the measurement site.
11. The highest temperature measured appears on the screen.
12. Turn the product off by pressing the
button.
13. Although the product will turn off automatically after 10 minutes, to conserve power it
is recommended to turn the product off manually after each reading.
14. The reading will automatically be stored in the memory.
15. The measurement continues even after the beeping has stopped. In order to achieve better
body temperature measurement results, it is recommend to keep the probe in mouth and
rectum for an additional 2 minutes, or in armpit about for an additional 5 minutes after the
beeping sound.
• Note: Result times may vary due to the individual and method used.
Memory Function
• The last measured temperature will display on the screen for approximately 2 seconds after
the self-check when the product is turned on.
Methods of Measuring Temperature
• Note: Measurement accuracy cannot be assured when the method used to measure the
temperature is incorrect. If multiple measurements are taken over a period of time, it is
important to use the same method of measurement each time so the results are comparable,
i.e. do not interchange between oral, rectal or underarm measurements. If taking multiple
measurements within a short period of time, allow the thermometer to return to room
temperature prior to taking each measurement.
Press and
hold
button for
2 seconds.
Changes
automatically.
˚F to ˚C
˚C to ˚F
BEEP
2.
At the same time the product runs a self-
check test, during which
all the digital segments
appear on the screen.
4. A default value of
37.0°C or 98.6°F will
display for 2 seconds.
3. The memory will show
the last reading on the
screen for 2 seconds.
5. When the letters Lo and a “ashing”
°C or °F display, the
product is now ready
for use.
MEMORY
(last reading)
Storage Case
ON/OFF button
LCD screen
Thermometric tip
Thermometric sensor
Welcare_WDT404/505_DigitalTherm_Working.indd 1Welcare_WDT404/505_DigitalTherm_Working.indd 1 30/7/21 12:56 pm30/7/21 12:56 pm
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