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DET-103
Joytech / OEM
The DET-103 Infrared Ear Thermometer is a compact and portable medical device designed for children and family use.
With a sleek ergonomic design, it delivers fast and accurate temperature readings in just 1 second, ensuring comfort and efficiency.
The jumbo LCD display makes results easy to read, while optional probe covers and an easy removal design maintain hygiene for multiple users.
Additional features such as 10-reading memory, dual °C/°F scale, fever alert beeps, automatic power-off, and a replaceable battery provide convenience and reliability.
Lightweight yet powerful, the DET-103 is ideal for everyday health monitoring at home or on the go.
Measure in ear
Probe covers optional
10 reading memories
1 second reading
Dual scale with °C/°F
Acoustic reading signal
Jumbo display
Replaceable battery
Compact ergonomic size
Easy probe cover remove design
Automatic power-off
How to switch ℃ to ℉?


Model | DET-103 |
Type | Infrared Ear |
Response Time | 1 second |
Memory | 10 Memories |
Range | 32.0°C- 43.0°C (89.6 °F-109.4 °F) |
Accuracy | ±0.2°C,35.5°C -42.0°C(±0.4°F,95.9 °F-107.6°F) |
Obeject Mode | Yes |
Fever Alarm | ≥ 37.8°C (100.0°F) |
Backlight | Optional |
Display size | 18.9x22.6mm |
Power Source | 2“AAA”batteries |
Probe Cover | Optional |
Battery Life | About 6000 readings |
Unit Dimension | 15.5X3.8X4.7cm |
Unit Weight | Approx. 83.0grams |
Packing | 1 pc / Gift box;60 pcs / Carton |
Carton Dimension | Approx. 47.5x45x39cm |
Carton Weight | Approx. 14kg |
• 24 years of OEM & ODM expertise.
• 3 manufacturing centers with 260,000㎡ automated facilities and 2000㎡ automated warehouses.
• 30+ production lines & 100+ patented innovations.
• ISO 13485, MDSAP, BSCI certified quality systems.
• Full customization for global brands, including Fortune 500 partners.

• WHX Dubai (formerly Arab Health), Dubai
• WHX Miami (formerly FIME), Miami, USA
• Hong Kong Electronics Fair, Hong Kong
• ABC Kids Expo, USA
• KIMES, Seoul, Korea
• MEDITEX Bangladesh, Dhaka
• Hospitalar, São Paulo, Brazil
• Canton Fair, China
• MEDICA, Düsseldorf, Germany
We are committed to meeting partners worldwide at leading international medical and consumer health exhibitions.

Q: Is the 1-second reading both fast and accurate for children?
A: Yes. It uses clinical-grade infrared sensing to provide a precise ear temperature reading in just one second, minimizing discomfort for children while ensuring reliable results for parents.
Q: How does the optional probe cover design support family hygiene?
A: The thermometer features an easy probe cover removal system. Using disposable covers creates a sanitary barrier for each user, making it safe and quick to share within the family.
Q: How do I switch the temperature unit between °C and °F?
A: With the device powered on, press and hold the measurement button for approximately 3-5 seconds until the display icon changes from °C to °F (or vice versa), then release to confirm your selection.
For customized solutions or partnership inquiries, please contact us at marketing@sejoygroup.com to discuss your specific needs.