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MAINTENANCE and STORAGE
◆
Storage
1. If you will not use the CTD504 for over 2 months, remove the battery from the
compartment.
2. Always store the CTD504 in its container after use.
3. ONLY the CTD504 probe tip is waterproof. Do not dip it in water or any other
liquid.
4. Keep the CTD504 away from:
• Extreme temperatures
• Overly humid or dry environment
• Direct sunlight
• Dusty places.
5. For details of environmental conditions, refer to “Specifi cations”. Using the
CTD504 outside the stated range may lead to inaccurate results or malfunction.
◆
Maintenance
1. Do not disassemble or change any parts of the CTD504. Such action may
reduce its accuracy.
2. Do not drop the CTD504, and avoid any strong impact.
ABOUT THE EAR THERMOMETER
Normal body temperature differs by body parts, time and age. Here are two tables
for your reference:
1. Normal Body Temperature Range
Age
Site
0 – 2
years old
3 – 10
years old
11 – 65
years old
Over 65
years old
Oral N/A
95.9 – 99.5 °F
35.5 – 37.5 °C
97.6 – 99.6 °F
36.4 – 37.6 °C
96.4 – 98.5 °F
35.8 – 36.9 °C
Rectal
97.9 – 100.4 °F
36.6 – 38.0 °C
97.9 – 100.4 °F
36.6 – 38.0 °C
98.6 – 100.6 °F
37.0 – 38.1 °C
97.1 – 99.2 °F
36.2 – 37.3 °C
Axillary
94.5 – 99.1 °F
34.7 – 37.3 °C
96.6 – 98.0 °F
35.9 – 36.7 °C
95.3 – 98.4 °F
35.2 – 36.9 °C
96.0 – 97.4 °F
35.6 – 36.3 °C
Ear
97.5 – 100.4 °F
36.4 – 38.0 °C
97.0 – 100.0 °F
36.1 – 37.8 °C
96.6 – 99.7 °F
35.9 – 37.6 °C
96.4 – 99.5 °F
35.8 – 37.5 °C
Core
97.5 – 100.4 °F
36.4 – 38.0 °C
97.5 – 100.0 °F
36.4 – 37.8 °C
98.2 – 100.2 °F
36.8 – 37.9 °C
96.6 – 98.8 °F
35.8 – 37.1 °C
Source: Offi cial Health Central, http://www.offi cialhealthcentral.com.
CLEANING INSTRUCTIONS
The CTD504 does not require a probe cover during use. Clean and disinfect the
CTD504 before and after each use. If you wish to share the CTD504 with others,
follow the instructions below.
◆
Preparation
1. Cotton bud: Available in supermarkets.
2. 70 % concentration alcohol swab: Available in
supermarkets.
Note: Dispose of used cotton buds and alcohol swabs in
accordance with local regulations.
◆
Cleaning : Probe area
Use a clean cotton bud to wipe off any visible dirt or ear wax. Gently wipe the area
clean.
Note: The most delicate and sensitive part of the CTD504 is the sensor inside the
probe tip. Poking it with force may cause damage to the CTD504. When cleaning,
take extra care.
Hold the CTD504 facing down to prevent water getting into the CTD504. Use an
alcohol swab to clean the probe area in a circular motion for 15 seconds (around 20
times).
DISINFECTION (Probe & Exterior Area)
1. Hold the CTD504 facing down to prevent water getting
into the CTD504. Use an alcohol swab to clean the probe
area in a circular motion for 15 seconds (around 20
times).
2. Then, use the same alcohol swab to wipe the exterior
area back and forth for another 15 seconds (around 20
times).
3. Wait at least 30 seconds until the CTD504 is completely
dry.
Continue to set units on the next page, and start measuring.
Repeat the steps above when measurement is done.
NOTE:
Do not use detergent or any strong chemicals on the CTD504.
FEVER ALERT
The CTD504 has a built-in “Fever Alert” feature.
If you have a fever between 37.5 °C – 43.0 °C (99.5 °F – 109.4 °F), the “Fever
Alert” function will inform you by a fl ashing result, red LED backlight, and a series
of beeps.
NOTE:
Do not use the CTD504 as a replacement for medical advice. Consult your doctor if
you have any concerns.