GOYOJO GRL335 Affordable Pro-grade Thermal Optic
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GOYOJO Optics
GOYOJO GRL Series Thermal Optics – GRL635 / GRL335 / GRL325
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Core specifications：
- Sensor Resolution:
GRL325/GRL335：384x288
GRL635：640x512 - Objective Lens: 25mm/35mm
- Optical Zoom:
GRL325: 3x
GRL335: 4x
GRL635: 4x - Digital Zoom: 1x, 2x, 3x, 4x
- Display Resolution: 1024*768
- Operating Time:
GRL325/GRL335: 6-8h
GRL635:4h
Core function:
- Picture In Picture: Yes
- Photo/Video/Audio: Yes
- RAV & Wi-Fi: Yes
- Hot Track: Yes
- FCC: Yes
- Classic One Shot Zero: Yes
- Thermal One-Shot Zero: Yes
- Shot Activated Recording: Yes
- Defective Pixel Correction: Yes, Auto Correction
Payment
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Expert Reviews
Customer experiences
-
Bobby Bibbb
2026/03/30
Love this GRL335
Loving this grl335 so far I’m actually pretty impressed with the clarity of the scope I’ve even not hunted with my agm adder in months now since I bought my first grs225 thanks GOYOJO Opitcs.
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Mark Roushh
2026/04/04
Definitely impressive for the money!
Definitely one of the easier thermal scopes to get dialed in!! Goyojo won't let you down!!
-
Kaiotti Ridge
2026/04/15
It’s a good scope
Okay this is sweet, the GRL335 far exceeds my expectations. Now time to chase some dogs!
-
Justin Shafer
2026/05/11
Great products at amazing prices
GOYOJO is being slept on by the public, I love the quality for the price.
-
Joey Adams
This is the kind of red hot that we need
I took it out back, I feel like this newer one has some different colors that actually looked really good on animals up close.
See More In The Dark. Hunt With Confidence.
Detail you can trust in the dark.
From 384 × 288 clarity to 640 × 512 detail, the GOYOJO GRL Series delivers reliable detection, intuitive control, and field-ready performance without the premium price.
Lightweight and Portable
The compact and streamlined design of the Little Conch makes it lightweight and easy to carry and install for extended periods, while also withstanding up to 1000g/0.4msrecoil for enhanced durability
Core Features:
| Specification | GRL325 | GRL335 | GRL635 640 Series |
|---|---|---|---|
| Sensor Resolution | 384 × 288 | 384 × 288 | 640 × 512 |
| Objective Lens | 25mm | 35mm | 35mm |
| Thermal Sensitivity (NETD) | <25mK @ 25°C, F/1.0 | <25mK @ 25°C, F/1.0 | <20mK @ 25°C, F/1.0 |
| Refresh Rate | 55Hz | 55Hz | 50Hz |
| Optical Magnification | 3× | 4× | 4× |
| Digital Zoom | 1×, 2×, 3×, 4× | 1×, 2×, 3×, 4× | 1×, 2×, 3×, 4× |
| Detection Range* | 1875m | 2647m | 2647m |
| Operating Time | 6-8 Hours | 6-8 Hours | 4 Hours |
| Storage | 64GB SD Card | 64GB SD Card | 64GB SD Card |
| Pixel Pitch | 12μm | 12μm | 12μm |
| Field of View (FOV) | 8.3° × 6.2° | 6.5° × 4.5° | 8° × 6.2° |
| Identification Range* | 233m | 329m | 329m |
| Recognition Range* | 468m | 661m | 661m |
*Detection, recognition, and identification ranges are based on a 1.7m × 0.5m human-size target under specified test conditions. Actual performance may vary with target size, temperature difference, humidity, weather, and atmospheric conditions.
| Function | Details |
|---|---|
| Picture-in-Picture (PIP) | Yes |
| Hotspot Tracking | Yes |
| Classic One-Shot Zero | Yes |
| Thermal One-Shot Zero | Yes |
| Shot-Activated Recording | Yes |
| Media Capture | Photo, Video & Audio |
| On-Device Playback | Photo & Video |
| RAV & Wi-Fi App | Yes |
| Defective Pixel Correction | Yes, Automatic Correction |
| Flat-Field Correction (FFC) | Yes |
| Scene Mode | Yes, Adaptive Mode |
| Recoil Mode | Yes |
| Gyroscope Calibration | Yes |
| Compass | Yes |
| Reticle Options | 5 Types, 5 Colors |
| Thermal Color Palettes | White Hot, Black Hot, Iron Red, Green, Fusion, Ice Fire & Red Hot |
Specifications
Complete Technical Overview
Infrared
Detector Type: Vanadium Oxide Uncooled Infrared Focal Plane Arrays
Resolution:
GRL325/GRL335: 384*288
GRL635: 640*512
NET D:
GRL325:<25mK@25°C,F/1.0
GRL335:<25mK@25°C,F/1.0
GRL635:<20mK@25°C,F/1.0
Pixel size: 12um
Frame Rate: ≤55Hz
Display
Display Type: OLED
Display Resolution: 1024*768
Dimensions: 0.39 inches
Power & Compatibilities
Battery Type: 18650 Rechargeable Lithium Battery
BatteryCapacity: 3.7V, 2600mAh
Battery Life: 6-8 hours
Charging Specifications: 5V/2A
Compatible Mounts: Picatinny Mount
Physical
Net Weight (No Battery):
GRL325:538 g/119 lbs;
GRL335:553g/1.22 lbs
Dimensions: 160*85*80 mm/6.30x3.35 x 3.15 inches
Max. Recoil: 1000 g/0.4 ms
IP Level: IP65
Operating Temperature: -20°C to 50°C/-4°F to 122°F
Storage Temperature: -10°C to 65°C/4°F to 149℉F
SD Card: 64GB
Materials: Aluminum-Magnesium Alloy
Warranty: 5 Years
