1. Important Safety Information
Please read this manual carefully before operating the INFURIDER YF-980G Infrared Thermometer. Failure to follow these instructions may result in injury or damage to the device.
- NOT FOR HUMAN USE: This thermometer is designed for industrial and household surface temperature measurements only. It cannot read internal body temperature, and readings for humans or animals will not be accurate. Do not use for medical purposes.
- LASER SAFETY: The device emits a Class 2 laser. Do not stare directly into the laser beam or point it at people or animals. Avoid direct eye exposure.
- ELECTRICAL SAFETY: Do not expose the device to water or extreme temperatures. Do not attempt to disassemble or modify the device.
- BATTERY SAFETY: Use only the specified battery type (9V, 6F22). Ensure correct polarity when inserting. Remove the battery if the device will not be used for an extended period. Dispose of batteries responsibly.
- ENVIRONMENTAL CONSIDERATIONS: Avoid using the thermometer in environments with high humidity, dust, or explosive gases.
2. Product Overview

Image: The INFURIDER YF-980G Non-Contact Digital Laser Infrared Thermometer, showcasing its ergonomic design and display.
The INFURIDER YF-980G is a non-contact infrared thermometer designed for accurate surface temperature measurements across a wide range of applications. It features a laser pointer for precise targeting, adjustable emissivity, and various display modes.
2.1 Key Features
- Temperature Range: -58°F to 1292°F (-50°C to 700°C)
- High Accuracy: ±2% of reading (for 32°F-212°F) with 0.5-second response time
- Distance-to-Spot Ratio: 16:1, allowing accurate measurement from a distance
- Adjustable Emissivity: 0.1 to 1.0 for various material surfaces
- LCD Display: Backlit for clear readability in low light conditions
- Measurement Modes: MAX/MIN/AVG/HAL/LAL (High/Low Alarm)
- Data Hold Function
- Auto Power Off: After 10 seconds of inactivity to conserve battery
- °C/°F Conversion
2.2 Package Contents
- INFURIDER YF-980G Infrared Thermometer
- 9V (6F22) Battery
- User Manual
2.3 Device Components

Image: Diagram showing the INFURIDER YF-980G Infrared Thermometer with labels for its LCD display, trigger, and battery door. The LCD display shows indicators for laser pointer, high/low temperature alarms, data hold, measure result, and emissivity.
- Laser pointer turn on prompt
- Alarm of high temperature prompt (HAL)
- Alarm of low temperature prompt (LAL)
- °C/°F unit indicator
- Measure result
- Emissivity indicator
- MAX/MIN/AVG/DIF indicator
- Battery Door
- Trigger
3. Setup
3.1 Battery Installation
- Locate the battery compartment on the handle of the thermometer.
- Open the battery door.
- Insert the included 9V (6F22) battery, ensuring correct polarity (+ and - terminals).
- Close the battery door securely.
Note: A low battery indicator will appear on the display when the battery needs replacement.
4. Operation
4.1 Taking a Measurement

Image: A hand holding the INFURIDER YF-980G thermometer, demonstrating the action of pressing and holding the trigger to take a measurement. The laser pointer is visible.
- Point the thermometer at the target surface.
- Press and hold the trigger to activate the laser pointer and begin measurement. The laser helps in aiming at the desired spot.
- The measured temperature will be displayed on the LCD screen.
- Release the trigger to hold the reading on the display (Data Hold function). The device will automatically power off after 10 seconds of inactivity.
Important: Ensure the distance-to-spot ratio (D:S) is considered for accurate readings. The YF-980G has a 16:1 D:S ratio, meaning at 16 inches from the target, the measurement spot diameter is 1 inch.

Image: A diagram illustrating the 16:1 distance-to-spot ratio, showing how the measurement spot size (S) increases with distance (D) from the target. Examples include 1.5" spot at 24", 3" spot at 48", and 5.3" spot at 84".
4.2 °C/°F Unit Conversion
Press the °C/°F button (usually located near the trigger or on the keypad) to switch between Celsius and Fahrenheit temperature units.
4.3 Mode Selection (MAX/MIN/AVG/HAL/LAL)
Press the MODE button to cycle through different measurement modes:
- MAX: Displays the maximum temperature recorded during a continuous measurement.
- MIN: Displays the minimum temperature recorded during a continuous measurement.
- AVG: Displays the average temperature recorded during a continuous measurement.
- HAL (High Alarm): Allows setting a high-temperature alarm threshold. If the measured temperature exceeds this value, the device will alert with a "beep beep beep" sound.
- LAL (Low Alarm): Allows setting a low-temperature alarm threshold. If the measured temperature falls below this value, the device will alert with a "beep beep beep" sound.
To set HAL/LAL values: In HAL or LAL mode, use the up/down arrow buttons (if available, or specific buttons for adjustment) to set the desired temperature threshold. Confirm the setting by pressing the MODE button again or waiting a few seconds.
4.4 Emissivity Adjustment
Emissivity (ε) is a measure of an object's ability to emit infrared energy. Different materials have different emissivities. For accurate readings, adjust the emissivity setting (0.1 to 1.0) to match the target material.
- Press the ε button (or a dedicated emissivity button) to enter emissivity adjustment mode.
- Use the up/down arrow buttons to change the emissivity value.
- Refer to a standard emissivity table for common materials (e.g., polished metals have low emissivity, while painted surfaces or organic materials have high emissivity).
- Press the ε button again or the trigger to confirm and exit.
Default emissivity is often 0.95, suitable for many organic materials and painted surfaces.
4.5 Best Practices for Measurement
- Surface Condition: Measure clean, dry surfaces. Dust, frost, or moisture can affect accuracy.
- Angle: For liquids, measure at an angle of approximately 45° to 60° to avoid steam or vapor interference.
- Distance: Maintain an appropriate distance based on the 16:1 D:S ratio to ensure the target fills the measurement spot.
- Reflective Surfaces: Highly reflective surfaces (e.g., polished metals) can lead to inaccurate readings. Consider applying a non-reflective matte paint or tape to the surface before measuring, or adjust emissivity accordingly.

Image: A diagram illustrating the correct and incorrect methods for measuring liquid temperature. The incorrect method shows the thermometer pointed directly at boiling liquid, while the correct method shows it pointed at a 45-60 degree angle to avoid steam interference.
5. Maintenance
- Cleaning: Use a soft, damp cloth to clean the device casing. Do not use abrasive cleaners or solvents.
- Lens Care: The infrared lens is a critical component. Clean it gently with a soft cloth or cotton swab and rubbing alcohol. Avoid touching the lens directly.
- Storage: Store the thermometer in a cool, dry place, away from direct sunlight and extreme temperatures. Remove the battery if storing for extended periods.
- Calibration: The device is factory calibrated. If you suspect inaccuracies, contact customer support for potential recalibration services.
6. Troubleshooting
- No Display/Device Not Turning On:
- Check battery installation and polarity.
- Replace the battery with a fresh 9V (6F22) battery.
- Inaccurate Readings:
- Ensure the target is within the specified temperature range.
- Verify the distance-to-spot ratio is appropriate for your measurement.
- Adjust the emissivity setting to match the target material.
- Clean the infrared lens if it is dirty.
- Avoid measuring through glass or highly reflective surfaces.
- Ensure there are no obstructions (steam, dust) between the thermometer and the target.
- Laser Not Working:
- Check battery level.
- Ensure the laser is enabled (if there's a separate setting).
7. Specifications
| Parameter | Value |
|---|---|
| Temperature Range | -58°F to 1292°F (-50°C to 700°C) |
| Resolution | 0.1°C/°F |
| Repeatability | 1% of reading |
| Distance Spot Ratio (D:S) | 16:1 |
| Response Time | 0.5 seconds |
| Emissivity | 0.1-1.0 (Adjustable) |
| Laser Target Pointer | Single Laser |
| Accuracy | ±3% of rdg for -58°F to 32°F ±2% of rdg for 32°F to 212°F ±3% of rdg for 212°F to 1292°F |
| Power | 1x 9V (6F22) Battery |
| Item Model Number | YF-980G |
| Package Dimensions | 17.6 x 10.79 x 5.59 cm |
| Weight | 200 g |
8. Applications
The INFURIDER YF-980G is suitable for a wide range of non-contact surface temperature measurements, including but not limited to:
- Cooking and Baking (e.g., pizza ovens, BBQ, oil temperature)
- HVAC (Heating, Ventilation, and Air Conditioning) systems
- Automotive maintenance (e.g., engine parts, tires)
- Industrial applications (e.g., mechanical equipment, chemical industry, steel processing, forging)
- Home inspections (e.g., insulation, electrical panels)
- Freezing industry

Image: A collage showing various applications of the infrared thermometer, including mechanical equipment temperature, chemical industry, heating channels, steel processing, forging industry, and oil temperature baking.
9. Warranty and Support
INFURIDER provides a 365-day quality guarantee for the YF-980G Infrared Thermometer. For technical support, warranty claims, or any questions regarding the product, please contact INFURIDER customer service through your purchase platform or the official INFURIDER website.
Please retain your proof of purchase for warranty purposes.