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Device is used to measure forehead temperature for people of all ages except pre-term/small babies.
None.
The thermometer consists of a housing, sensor, display, and circuit board.
Description of the thermometer's LCD display elements and indicators.
Includes Instructions and 2 AAA Alkaline Batteries.
Crucial warnings for safe operation, handling, and avoiding misuse of the thermometer.
Important cautions to ensure accurate measurements and device longevity.
Specifies temperature, humidity, and pressure for accurate readings.
Defines environmental parameters for safe transport and storage.
Instructions for inserting batteries, noting polarity and initial check.
Guide to convert between Celsius (°C) and Fahrenheit (°F).
Step-by-step guide on how to operate the thermometer for accurate readings.
How to access stored measurements and clear the memory.
Instructions for manual and automatic shutdown of the thermometer.
Procedure for cleaning the sensor and device to maintain accuracy.
Guidelines for proper storage to protect the device.
Table of common display errors, causes, and troubleshooting steps.
Explanation of safety and operational symbols found on the thermometer.
Details on power, measurement range, accuracy, size, weight, and service life.
Reference values for normal body temperatures at different measurement sites.
Instructions for replacing batteries when the low battery indicator appears.
Information on warranty coverage, free maintenance, and non-covered faults.
Details for completing the warranty card, including product name and model.
Guidance on RF interference and safe usage near other electronic devices.
Device is used to measure forehead temperature for people of all ages except pre-term/small babies.
None.
The thermometer consists of a housing, sensor, display, and circuit board.
Description of the thermometer's LCD display elements and indicators.
Includes Instructions and 2 AAA Alkaline Batteries.
Crucial warnings for safe operation, handling, and avoiding misuse of the thermometer.
Important cautions to ensure accurate measurements and device longevity.
Specifies temperature, humidity, and pressure for accurate readings.
Defines environmental parameters for safe transport and storage.
Instructions for inserting batteries, noting polarity and initial check.
Guide to convert between Celsius (°C) and Fahrenheit (°F).
Step-by-step guide on how to operate the thermometer for accurate readings.
How to access stored measurements and clear the memory.
Instructions for manual and automatic shutdown of the thermometer.
Procedure for cleaning the sensor and device to maintain accuracy.
Guidelines for proper storage to protect the device.
Table of common display errors, causes, and troubleshooting steps.
Explanation of safety and operational symbols found on the thermometer.
Details on power, measurement range, accuracy, size, weight, and service life.
Reference values for normal body temperatures at different measurement sites.
Instructions for replacing batteries when the low battery indicator appears.
Information on warranty coverage, free maintenance, and non-covered faults.
Details for completing the warranty card, including product name and model.
Guidance on RF interference and safe usage near other electronic devices.
This document describes the Yuwell YT-2 Infrared Thermometer, a device designed for measuring human body temperature from the forehead. It is intended for use on individuals of all ages, with the exception of pre-term babies or very small (small for gestational age) babies. The thermometer consists of a housing, a sensor, a display, and a circuit board, providing a user-friendly interface for temperature measurement.
The primary function of the Yuwell YT-2 Infrared Thermometer is to provide a non-contact method for measuring forehead temperature. Users point the infrared thermometer probe at the center of the eyebrow, within 0-5 cm of the forehead. Upon pressing the start measurement button, the device vibrates and emits sound prompts to display the measurement results within approximately 1 second.
The device incorporates several features to enhance its functionality and user experience. It includes a temperature probe and a ranging probe to ensure accurate distance measurement. The LCD display area shows the temperature reading, along with various indicators such as battery reminder, temperature unit (°C or °F), and distance unit. A voice prompt feature is also integrated.
For situations where the measurement distance is greater than 5 cm, the display will show "0-5 CM" to prompt the user to move closer to the subject. If the measurement distance is less than 5 cm, the device automatically measures, vibrates, and emits a "di" sound before displaying the result.
The thermometer also includes an alarm function for high temperatures. If the measured temperature is 37.6 °C (99.7 °F) or higher, the device will emit a quick, continuous three-time "di-di-di" alarm sound. Similarly, if the measured result falls outside the device's measurement range of 32 °C to 43 °C (89.6 °F to 109.4 °F), the thermometer will also trigger a three-time "di-di-di" alarm, prompting the user to verify the measurement method and external environment.
The device features a memory function that can store up to 10 groups of memory values. Users can access these stored values to review past measurements. If the number of groups exceeds 10, the latest memory value will overwrite the earliest one. The memory values can also be cleared by pressing and holding the memory button for about 5 seconds until "CLr" is displayed on the screen.
The thermometer is designed for continuous running mode and automatically shuts down after approximately 30 seconds of inactivity to conserve battery life. It can also be manually turned off by long-pressing the start measurement button for 3-5 seconds.
The Yuwell YT-2 Infrared Thermometer is designed for ease of use, with several features that simplify its operation:
Battery Installation and Unit Setting: The device operates on two AAA alkaline batteries. To install them, the battery cover is pushed downward, and the batteries are loaded into the compartment, paying attention to the positive and negative pole instructions. Once installed, the device performs a self-inspection.
Users can set the desired temperature unit (°C or °F). In the shutdown state, long-pressing the start measurement button for 8-12 seconds enters the temperature unit conversion state. A short press of the same button allows selection between °C and °F, and a final long press confirms the selection.
Measurement Process: For accurate measurement, the infrared thermometer probe should be pointed at the center of the eyebrow, maintaining a distance of 0-5 cm from the forehead. Pressing the start measurement button initiates the measurement. The device provides vibration and sound prompts, and the measurement result is displayed within approximately 1 second.
Important Considerations for Measurement: To ensure accurate results, several precautions should be observed:
Proper maintenance of the Yuwell YT-2 Infrared Thermometer is crucial for ensuring its accuracy and longevity. As a reusable device, it requires attention to cleaning and disinfection after use.
Cleaning and Disinfection: If the product becomes dirty, the sensor and probe cavity must be kept clean to prevent affecting measurement accuracy. The inner cavity or sensor mirror should be gently wiped with a clean, soft cloth or cotton swab. It is important not to wipe these parts with other materials, as this could cause abrasion to the sensor lens surface or machine malfunction.
For disinfection, the surface of the product and the head used for measurement should be gently wiped with a cotton swab dipped in a small amount of medical alcohol (70%). The device can be used once the alcohol has completely evaporated.
Storage: The thermometer should be stored in a dust-free, dry place, away from direct sunlight. It should not be stored in areas with high temperature, humidity, dust, or corrosive gas.
General Precautions:
Battery Management: To prevent battery leakage and potential damage to the thermometer, the batteries should be removed if the product is not going to be used for an extended period (more than 3 months). When the battery reminder symbol is displayed, the AAA batteries should be replaced, ensuring proper alignment of the positive and negative poles. Empty batteries should be disposed of at appropriate collection sites according to national or local regulations to protect the environment.
Troubleshooting: The manual provides guidance for common failures:
General| Type | Infrared Thermometer |
|---|---|
| Accuracy | ±0.2°C (±0.4°F) |
| Display | LCD |
| Battery | 2 x AAA batteries |
| Auto Shut-off | Yes |
| Response Time | 1 second |
| Auto Power Off | Yes |
| Measurement Time | 1 second |
| Measurement Range | 32.0°C - 42.9°C (89.6°F - 109.2°F) |
| Memory Function | Yes |
| Measurement Distance | 3-5cm |
