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    GOYOJO GRL335/GRL335 Therma...

    Observe heat signatures in darkness, fog, light rain, and other visually challenging outdoor environments with the NITERUS GRL325 Thermal Imaging Optic. Featuring a 384 × 288 thermal detector, 12 μm pixel pitch, thermal sensitivity below 25 mK, and a listed 55 Hz refresh rate, this device is designed to provide detailed and smooth thermal-image presentation.

    The GRL325 includes six thermal viewing modes, built-in photo and video recording, and 64GB of internal storage. Its listed long-distance detection capability supports wildlife observation, property monitoring, outdoor patrols, search support, and general heat-source detection.

    The supplied description also identifies the device as a GOYOJO product. The final brand, model, certification, warranty, and packaging should be verified before publication.

    Key Features

    • 384 × 288 thermal imaging detector

    • 12 μm pixel pitch

    • NETD below 25 mK

    • Listed 55 Hz refresh rate

    • Detection range up to approximately 1,640 yards

    • Six thermal image modes

    • Built-in photo and video recording

    • 64GB internal storage

    • Manual digital alignment support

    • Suitable for day and night thermal observation

    • CE and FCC certification, subject to verification

    • Listed five-year warranty

    Product Specifications

    • Brand: NITERUS, subject to final confirmation

    • Alternative Listed Brand: GOYOJO

    • Model: GRL325, subject to confirmation

    • Product Type: Thermal Imaging Optic

    • Thermal Detector Resolution: 384 × 288 Pixels

    • Pixel Pitch: 12 μm

    • Detector Type: Confirm Before Publishing

    • Thermal Sensitivity: NETD Below 25 mK

    • Refresh Rate: Listed as 55 Hz

    • Objective Lens: Confirm Before Publishing

    • Lens Aperture: Confirm Before Publishing

    • Field of View: Confirm Before Publishing

    • Base Magnification: Confirm Before Publishing

    • Digital Zoom: Confirm Before Publishing

    • Detection Distance: Up to Approximately 1,640 Yards

    • Approximate Metric Detection Distance: Around 1,500 Metres

    • Recognition Distance: Confirm Before Publishing

    • Identification Distance: Confirm Before Publishing

    • Thermal Image Modes: Six

    • Display Type: Confirm Before Publishing

    • Display Resolution: Confirm Before Publishing

    • Photo Capture: Supported

    • Video Recording: Supported

    • Photo Resolution: Confirm Before Publishing

    • Video Resolution: Confirm Before Publishing

    • Recording Frame Rate: Confirm Before Publishing

    • Internal Storage: 64GB

    • Audio Recording: Confirm Before Publishing

    • Wi-Fi: Confirm Before Publishing

    • Manual Alignment Function: Supported

    • Saved Profiles: Confirm Before Publishing

    • Battery Type: Confirm Before Publishing

    • Battery Capacity: Confirm Before Publishing

    • Operating Time: Confirm Before Publishing

    • Charging Time: Confirm Before Publishing

    • Charging Interface: Confirm Before Publishing

    • Protection Rating: Confirm Before Publishing

    • Operating Temperature: Confirm Before Publishing

    • Dimensions: Confirm Before Publishing

    • Weight: Confirm Before Publishing

    • Certifications: CE and FCC, subject to document verification

    • Warranty: Listed as Five Years

    • Country of Origin: China

    384 × 288 Thermal Detector

    The GRL325 uses a listed 384 × 288 thermal detector with a 12 μm pixel pitch.

    This configuration may support:

    • Detailed thermal-image presentation

    • Improved separation between nearby heat sources

    • Better image quality during digital enlargement

    • Clearer observation of smaller warm subjects

    • More usable detail in complex thermal scenes

    • Long-distance heat-source detection

    Actual performance depends on detector material, thermal sensitivity, objective lens, weather, humidity, target size, temperature contrast, and image-processing settings.

    Detector Type

    The supplied description does not identify the thermal detector material.

    Before publication, confirm:

    • VOx or amorphous-silicon detector

    • Cooled or uncooled construction

    • Spectral response

    • Detector manufacturer

    • Calibration system

    • Pixel correction functions

    Do not assume the detector material without manufacturer documentation.

    NETD Below 25 mK

    The listed thermal sensitivity is below 25 mK.

    A lower NETD value generally indicates an improved ability to distinguish small temperature differences, which may provide clearer image detail in:

    • Fog

    • High humidity

    • Light rain

    • Low thermal contrast

    • Uniform backgrounds

    • Changing outdoor temperatures

    Before publication, verify:

    • Test temperature

    • Lens configuration

    • Image-processing mode

    • Measurement standard

    • Whether the value applies to every GRL325 variant

    Refresh-Rate Verification

    The product is listed with a 55 Hz refresh rate.

    This is less common than standard 50 Hz or 60 Hz specifications, so it should be verified before publication.

    A higher refresh rate may support smoother imaging during:

    • Handheld scanning

    • Walking observation

    • Tracking moving heat sources

    • Outdoor monitoring

    • Property inspection

    • Equipment checks

    Use one verified refresh-rate value throughout the product page and merchant feed.

    Objective-Lens Information

    The objective-lens focal length and aperture are missing.

    These details are required because the lens affects:

    • Field of view

    • Base magnification

    • Detection distance

    • Minimum focusing distance

    • Image brightness

    • Overall device size

    Before publication, confirm:

    • Focal length

    • F-number

    • Lens material

    • Fixed or manual focus

    • Minimum focusing distance

    • Protective coating

    Detection Distance

    The listed detection range is up to approximately 1,640 yards, which is roughly 1,500 metres.

    Detection means that a heat source may be noticed. It does not necessarily mean that the subject can be recognized or positively identified at that distance.

    Before publishing, confirm:

    • Target type

    • Target dimensions

    • Temperature difference

    • Lens configuration

    • Weather conditions

    • Detection criteria

    • Recognition distance

    • Identification distance

    Six Thermal Image Modes

    The device supports six listed image modes.

    Possible thermal palettes may include:

    • White Hot

    • Black Hot

    • Red Hot

    • Iron Red

    • Rainbow

    • Target Highlight

    The exact palette names should be confirmed from the final firmware.

    Only verified image modes should appear in the finished listing.

    Display System

    The internal display specifications are missing.

    Before publication, confirm:

    • OLED, AMOLED, LCOS, or LCD technology

    • Display resolution

    • Screen size

    • Brightness levels

    • Contrast adjustment

    • Diopter range

    • Eye relief

    • Screen refresh rate

    • Automatic display timeout

    Display resolution should be listed separately from the 384 × 288 thermal sensor resolution.

    Photo and Video Recording

    The GRL325 supports photo and video recording.

    Before publication, confirm:

    • Photo resolution

    • Video resolution

    • Video frame rate

    • File formats

    • Audio recording

    • Maximum clip duration

    • Internal playback

    • Date and time stamping

    • USB file transfer

    • Automatic recording functions

    64GB Internal Storage

    The device includes a listed 64GB of built-in storage.

    Potential benefits include:

    • No external memory card required

    • Storage for thermal photos

    • Storage for thermal videos

    • Reduced risk of losing a removable card

    • Convenient file management

    Before publication, confirm:

    • Available user capacity

    • Reserved system storage

    • Estimated photo capacity

    • Estimated video duration

    • Maximum individual file size

    • File-transfer method

    • Storage formatting procedure

    Manual Alignment Function

    The device is described as supporting simple manual alignment.

    Before publication, confirm:

    • Screen-freeze support

    • Adjustment increments

    • Number of saved profiles

    • Profile naming

    • Reset function

    • Horizontal adjustment range

    • Vertical adjustment range

    • Whether settings remain saved after battery removal

    Avoid publishing procedural instructions unless they are included in the official user manual.

    Battery System

    No battery specifications are supplied.

    Before publication, confirm:

    • Battery type

    • Battery capacity

    • Built-in or removable design

    • Number of included batteries

    • Operating time

    • Charging duration

    • Charging connector

    • Operation while charging

    • Power-bank compatibility

    • Low-temperature runtime

    Actual runtime may vary with display brightness, recording, Wi-Fi, image processing, and ambient temperature.

    Environmental Protection

    No waterproof or dustproof rating is provided.

    Before advertising rugged outdoor performance, confirm:

    • IP protection rating

    • Operating-temperature range

    • Storage-temperature range

    • Humidity tolerance

    • Drop resistance

    • Vibration resistance

    • Port sealing

    • Condensation protection

    Do not describe the device as waterproof unless an exact verified IP rating is available.

    Brand Conflict

    The top specifications identify the brand as NITERUS, while the description repeatedly names GOYOJO.

    Use one consistent brand across:

    • Product title

    • Product housing

    • Packaging

    • User manual

    • Certification

    • Warranty

    • Mobile application

    • Merchant Center feed

    Do not combine both brand names unless this is an authorized co-branded product.

    Model Confirmation

    The description identifies the product as GRL325, but the top specifications do not show a model number.

    Confirm:

    • Exact model code

    • Sensor version

    • Lens configuration

    • Display version

    • Storage capacity

    • Battery configuration

    • Included accessories

    Different configurations should receive separate SKUs and prices.

    Certifications

    The product is listed with CE and FCC certification.

    Before publication, verify:

    • Certificate numbers

    • Testing laboratory

    • Exact model coverage

    • Brand name shown on certificates

    • Applicable standards

    • Certificate validity

    Certification logos should not be displayed unless the documents cover the exact product being sold.

    Five-Year Warranty

    The product description includes a five-year warranty.

    Before publication, confirm whether the warranty covers:

    • Thermal detector

    • Internal display

    • Battery

    • Storage

    • Recording system

    • Charging port

    • Buttons and controls

    • Environmental sealing

    • Labour

    • Return shipping

    • Replacement parts

    A five-year warranty should not be advertised unless formal written terms are available.

    Suitable Applications

    The GRL325 may be suitable for:

    • Wildlife observation

    • Farm monitoring

    • Property inspection

    • Outdoor patrols

    • Search support

    • Night-time observation

    • Camping and exploration

    • Electrical inspection

    • Machinery monitoring

    • General heat-source detection

    Performance depends on lens configuration, thermal contrast, target size, weather, distance, and device settings.

    Package Contents

    Confirm whether the standard package includes:

    • NITERUS GRL325 thermal imaging optic

    • Rechargeable battery

    • Battery charger

    • USB cable

    • Protective lens cap

    • Eye cup

    • Carrying case

    • Wrist or neck strap

    • Cleaning cloth

    • User manual

    Only verified included accessories should appear in the final product listing.

    Important Use Information

    Avoid pointing the thermal detector directly at the sun, welding arcs, lasers, or other intense energy sources, as these may damage the sensor.

    Keep the objective lens clean and dry, close all protective covers before outdoor use, and store the device within the manufacturer’s recommended environmental conditions.

    Follow all applicable privacy, observation, equipment, and local-use regulations.

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