CTD 504 - Thermometer CITIZEN - Free user manual and instructions
Find the device manual for free CTD 504 CITIZEN in PDF.
Pick your language and provide your email: we'll send you a specifically translated version.
| Product Type | Digital Thermometer |
| Model | CTD 504 |
| Brand | Citizen |
| Dimensions | Approx. 14.5 x 2.5 x 1.2 cm |
| Weight | Approx. 50 g (including battery) |
| Power Source | 1 LR41 button cell battery (1.5V) |
| Display | LCD, 4 digits |
| Measurement Range | 32.0°C to 42.9°C (89.6°F to 109.2°F) |
| Accuracy | ±0.1°C (±0.2°F) between 35.0°C and 38.0°C; ±0.2°C elsewhere |
| Measurement Time | Approx. 60 seconds (predictive mode) |
| Functions | Fever alarm, last memory recall, auto-off after 10 minutes |
| Temperature Scale | Selectable Celsius/°F |
| Water Resistance | Splash-proof (IPX4) |
| Material | Flexible tip, ABS plastic |
| Clinical Standard | Conforms to EN 12470-3 |
| Battery Life | Approx. 100 hours of operation |
| Cleaning | Wipe with a soft cloth and alcohol; do not immerse |
| Storage | Store in a cool, dry place (0-40°C, 15-85% RH) |
| Accessories | Protective cap, battery included |
Frequently Asked Questions - CTD 504 CITIZEN
How do I switch between Celsius and Fahrenheit?
Press and hold the power button for about 3 seconds until the display shows the current scale. Release, then press again to toggle between °C and °F. Wait 5 seconds to save.
How long does it take to get a reading?
The thermometer beeps after approximately 60 seconds in standard mode. In predictive mode, it may finish earlier, but the final temperature is accurate.
Can I use the thermometer for oral, rectal, or underarm measurements?
Yes, the CTD 504 is suitable for oral, rectal, and axillary use. For accurate results, ensure the tip is properly placed and cleaned between uses.
How do I clean the thermometer?
Clean the tip and stem with a soft cloth lightly moistened with 70% isopropyl alcohol. Do not immerse in water or use abrasive cleaners.
What type of battery does it use and how do I replace it?
It uses one LR41 (1.5V) button cell. To replace, slide the battery cover off, remove the old battery, and insert a new one with the positive (+) side up. Reattach the cover.
What does the fever alarm sound mean?
If the temperature is ≥ 38.0°C (100.4°F), the thermometer emits a rapid beep sequence to indicate a fever. A normal reading gives a single beep.
Why does the display show 'Lo' or 'Hi'?
'Lo' means the temperature is below 32.0°C (89.6°F) or the thermometer is not in contact. 'Hi' means it exceeds 42.9°C (109.2°F). Check placement and try again.
Is the thermometer waterproof?
It is splash-proof (IPX4) but not waterproof. Do not submerge. Clean only with a damp cloth.
How accurate is the Citizen CTD 504?
The accuracy is ±0.1°C (±0.2°F) in the clinical range (35.0-38.0°C), and ±0.2°C elsewhere. It meets the EN 12470-3 standard.
How do I store the thermometer when not in use?
Always replace the protective cap, and store in a dry place at room temperature (0-40°C, 15-85% humidity). Remove the battery if storing for more than 3 months.
User questions about CTD 504 CITIZEN
0 question about this device. Answer the ones you know or ask your own.
Ask a new question about this device
No questions yet. Be the first to ask one.
Download the instructions for your Thermometer in PDF format for free! Find your manual CTD 504 - CITIZEN and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. CTD 504 by CITIZEN.
USER MANUAL CTD 504 CITIZEN
Manual assistant
Powered by Anthropic
Waiting for your message
Product information
Brand : CITIZEN
Model : CTD 504
Category : Thermometer