The device is an electronic clinical thermometer using a thermistor to detect body temperature from the oral, ampit, and rectal in the neonatal, pediatric and adult population used in the clinical and home testing.
Device Story
Electronic clinical thermometer (Models DT-101, DT-102, DT-103, DT-201, DT-202, DT-203) uses thermistor sensor to detect body temperature; ASIC calculates temperature from thermistor resistance; results displayed on LCD; includes buzzer for audible alerts; powered by 1.5V DC battery; some models feature water-resistant design; used by clinicians or patients in clinical or home environments; provides digital temperature readout to assist in clinical decision-making.
Clinical Evidence
No clinical studies were conducted. Substantial equivalence is supported by bench testing and compliance with recognized voluntary standards (ASTM E1112, IEC 60601-1-2).
Technological Characteristics
Electronic thermometer; thermistor sensor; ASIC-based signal processing; 1.5V DC battery power; LCD display; buzzer; water-resistant models available; metal cap for sensor protection. Standards: ASTM E1112, IEC 60601-1-2.
Indications for Use
Indicated for neonatal, pediatric, and adult populations for oral, axillary, and rectal body temperature measurement in clinical and home settings.
Regulatory Classification
Identification
A clinical electronic thermometer is a device used to measure the body temperature of a patient by means of a transducer coupled with an electronic signal amplification, conditioning, and display unit. The transducer may be in a detachable probe with or without a disposable cover.
Special Controls
(1) Device is not a clinical thermometer with telethermographic functions;
(2) Device is not a clinical thermometer with continuous temperature measurement functions; and
(3) Appropriate analysis and testing (such as that outlined in the currently FDA-recognized editions, as appropriate, of ISO 80601-2-56, “Medical electrical equipment—Part 2-56: Particular requirements for basic safety and essential performance of clinical thermometers for body temperature measurement,” or ASTM E1965, “Standard Specification for Infrared Thermometers for Intermittent Determination of Patient Temperature,” or ASTM E1112, “Standard Specification for Electronic Thermometer for Intermittent Determination of Patient Temperature,” or ASTM E1104, “Standard Specification for Clinical Thermometer Probe Covers and Sheaths”) must validate specifications and performance of the device.
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# OCT 27 1999
K 992601
EXHIBIT # 1
### 510(K) SUMMARY
This summary of 5l0(k) safety and effectiveness information is being submitted in accordance with the requirements of SMDA 1990 and 21 CFR §807.92.
The assigned 5l0(k) number is: ______________
#### Submitter's Identification: 1.
Oriental System Technology Inc. 2F No. 23, Industry E. Road 9" Science Based Industrial Park Hsinehu, Taiwan, R.O.C.
### Contact:
Mr. Herman Lee General Manager
Date Summary Prepared: July 1999
#### 2. Name of the Device:
Temp Teller-Digital Thermometer, Models DT-101, DT-102, DT-103, DT-201, DT-202, and DT-203,
#### 3. Predicate Device Information:
- 1. Q-Tips®, Faichney, Private Label Clinical Electronic Thermometers K# 962497
- 2. Wallgreens PAP-WD
#### 4. Device Description:
The OSTI Temp - Teller Digital Thermometer, (Models DT-101, DT-102, DT-103, DT-201, DT-202, and DT-203). is an electronic thermometer using a thermistor as the temperature sensor. The sensor's electric signal is then calculated and displayed by an ASIC (Application Specific IC) Models DT-101 and DT-201 display the temperature within a 100" of a degree. Models DT-101, DT-102 and DT-103 employ a 1.5 times larger LCD display than competitive products for easier reading. Models DT-101, DT-102, DT-201 and DT-202 have a water-resistant function.
The digital thermometer comprises: a thermistor for temperature sensing, a reference resistor for comparing the resistance of the thermistor, a buzzer for sounding effect, an ASIC and a LCD display for calculating and displaying the target temperature digitally which the thermistor is immersed.
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The system uses a 1.5V DC battery for the power supply and the battery power is The system uses a 1.3V DC battery for the power Eappy and displayed in LCD if the battery is exhausted.
#### Intended Use: ട്.
The device is an electronic clinical thermometer using a thermistor to detect body The device is an electionile official the neonatal, pediatric and adult population used in the clinical and home testing.
#### Comparison to Predicate Devices: 6.
The OSTI Temp Teller – Digital Thermometer, Models DT-101, DT-102, DT-103, DT-The OOT Temp Tollor - Bigkar bother to the following digital thermometers.
- a. Q-I ips®, Faichney, Private Label Clinical Electronic Thermometers K# 962497
- b. Wallgreens PAP-WD
The OSTI Temp Teller Digital Thermometer is similar in design and intended use to the rrne OOTT Temp Teller Digiter Front range and resolution. All products use the same predicates differing only in ambient - thermistor as well as the use of a metal cap to protect temperature sensing chomblay, ASIC, a buzzer and a 1.55V battery.
### Discussion of Non-Clinical Tests Performed for Determination of Substantial 7. Equivalence are as follows:
Compliance to applicable voluntary standards includes ASTM E1112, and Compliance to uppliedblo velancery -1 and IEC 60601-1-2 requirements.
Guidance Documents included the FDA "Guidance On The Content of Premarket Notification (510(k)) Submissions for Clinical Electronic Thermometers".
#### Discussion of Clinical Tests Performed: 8.
Controlled human clinical studies were not conducted using the OSTI Temp Teller Digital Thermometer and predicate devices.
#### ರು Conclusions:
The OSTI Temp Teller -- Digital Thermometer, Models DT-101, DT-102, DT-103, DT-201, DT-202, and DT-203, have the same intended use and similar technological characteristics as predicate devices. Moreover, bench testing toonhologiour onaracterission and clinical testing supplied demonstrate that any differences in their technological characteristics do not raise any new questions affierorioso iffectiveness. Thus, the OSTI Temp Teller Digital Thermometer, Models DT-101, DT-102, DT-103, DT-201, DT-201, and DT-203 is substantially equivalent to the predicate devices.
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Image /page/2/Picture/1 description: The image contains the text "Public Health Service". The text is written in a simple, sans-serif font. The words are arranged horizontally, with "Public" and "Health" on the first line and "Service" on the second line. The text appears to be part of a document or sign.
Image /page/2/Picture/2 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a stylized caduceus symbol, which is a staff with two snakes coiled around it, and the text "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" arranged in a circular fashion around the symbol. The text is in all caps and is in a sans-serif font. The logo is black and white.
OCT 2 7 1999
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
Oriental System Technology, Incorporated C/O Ms. Susan D. Goldstein-Falk Official correspondent for Oriental System Technology, Incorporated MDI Consultants, Incorporated 55 Northern Boulevard, Suite 410 Great Neck, New York 11021
Re : K992601 Trade Name: Temp Teller - Digital Thermometer, Models DT-101, DT-102, DT-103, DT-201, DT-202, and DT-203 Regulatory Class : II Product Code: FLL Dated: July 30, 1999 Received: August 3, 1999
Dear Ms. Susan D. Goldstein-Falk:
We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, qood manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the Good Manufacturing Practice for Medical Devices: General (GMP) regulation (21 CFR Part 820) and that, through periodic GMP inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP requlation may result in requlatory action. In addition, FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any
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Page 2 - Ms. Susan D. Goldstein-Falk
obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.
This letter will allow you to begin marketing your device as described in your 510 (k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4692. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its internet address "http://www.fda.gov/cdrh/dsmamain.html".
Sinderely yours,
Alilut
Timothy A. Ulatowski Director Division of Dental, Infection Control and General Hospital Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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## Exhibit B
Page __ 1 __ of __ 1 __
510(k) Number (if known):
Device Name: Oriental System Technology Inc. Temp Teller Digital Thermometer, Models DT-101, DT-102, DT-103, DT-201, DT-202, DT-203
### Indications For Use:
The device is an electronic clinical thermometer using a thermistor to detect body temperature from the oral, ampit, and rectal in the neonatal, pediatric and adult population used in the clinical and home testing.
(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Prescription Use (Per 21 CFR 801.109)
Over-The-Counter Use
(Optional Format 1-2-96)
Patricia Cuemke
(Division sign-off)
OR
(Division sign-off) Division of Dental, Infection control, And General Hospital Devices 510(k) number _ A 992601
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Learn the FDA Browser
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.