| Model | ST25L |
|---|---|
| Product Type | Thermal Imaging Riflescope |
| Detector Type | Vanadium Oxide (VOx) Uncooled Detector |
|---|---|
| Detector Resolution | 256 × 192pixels |
| Frame Rate | 50Hz |
| Pixel Pitch | 12μm |
| Spectral Range | 8–14μm |
| NETD | <25（25°C，F#=1.0）mK |
| Objective Lens Focal Length | 25mm |
|---|---|
| F-Number | F1.0 |
| Focusing Mechanism | Manual Focus |
| Minimum Focusing Distance | 5m |
| Field of View | 7 × 5.3° |
| Base Magnification | 3.2× |
| Electronic Magnification | 1×, 2×, 4×, 8× |
| Detection Range | 625m |
| Display Type | OLED |
|---|---|
| Display Size | 0.32inch |
| Display Resolution | 800 × 600pixels |
| Image Palettes | Black Hot, White Hot, Red Hot, Fusion, Iron Red, Green Monochrome |
| Exit Pupil Diameter | 6mm |
| Eye Relief | 45mm |
| Diopter Adjustment | −5 to +3D |
| Photo Capture | Supported |
|---|---|
| Video Recording | Supported |
| Standby Mode | Supported |
| Internal Storage | Built-in eMMC (32 GB) |
| Picture-in-Picture | Supported |
| OSD Display | Show / Hide |
| Defective Pixel Correction (DPC) | Supported |
| Wi-Fi Hotspot | Supported |
| Network Modes | Wi-Fi Mode, Hotspot Mode |
| Uniformity Correction (NUC) | Supported |
| Hot Track | Supported |
| Reticle Function | Supported |
| Recoil-Activated Recording | Supported |
| External Video Output | External CVBS Display via USB Type-C |
| Date & Time Settings | Supported |
| Language Settings | Supported |
| Version Information | Supported |
| Factory Reset | Supported |
| Shutter Control | Manual / Automatic |
| Gyroscope | Supported |
| Mobile App | Supported (iOS / Android) |
| Brightness Adjustment | 1–10 Levels |
| Contrast Adjustment | 1–10 Levels |
| Number of Reticle Patterns | 6patterns |
|---|---|
| Reticle Color Adjustment | Supported |
| Freeze During Zeroing | Supported |
| Shooting Table | Supported |
| Shooting Table Profiles | 5profiles |
| Smart Trajectory | Supported |
| Ballistic Calculation | Supported |
| Integrated Laser Rangefinder | Supported |
| Maximum Measuring Range | 625m |
| Minimum Measuring Range | 5m |
| Ranging Modes | Single Measurement, Continuous Measurement |
| Battery Type | 18500 Li-ion Battery |
|---|---|
| Battery Quantity | 1pcs |
| Replaceable Battery | Supported |
| Battery Life | ≥4.5 at 25°C, Wi-Fi hotspot offh |
| Battery Test Condition | 25°C, Wi-Fi hotspot off |
| Battery Level Indicator | Supported |
| Reverse-Polarity Protection | Supported |
| Overvoltage Protection | Supported |
| External Power Supply | DC 5 V / 2 A |
| Charging / Power Interface | USB Type-C (QC 3.0) |
| Charging in Device | Supported |
| Operating Temperature | −30 to +55°C |
|---|---|
| Ingress Protection | IP66 |
| Shock Resistance | 1000g |
| Product Dimensions | 170 × 80 × 51mm |
|---|---|
| Net Weight | 452g |
| Weight Including Battery | 472g |
| Physical Ports | USB Type-C |
| Warranty | 2 Years |
|---|---|
| Country of Origin | China |
Clarity That Holds. After Dark.
A compact thermal platform built around clear observation, direct control and confident field use when available light is no longer enough.
Observation, ranging and direct control—organized as one compact system.
— brings thermal observation, distance awareness and direct control into one compact platform. Its operating flow is centered on the information needed most often in the field.
From locating a heat signature to confirming range and adjusting the view, key functions remain close at hand— reducing unnecessary steps while preserving a clear and stable reading of the scene.
White Hot, Black Hot, Red Hot, Fusion, Iron Red and Green Hot reinterpret the same thermal scene through different tonal and color mappings, helping the user select the most readable view for the environment and observation task.
Place the reticle, measure the selected area and move through the available magnification levels without leaving the thermal view. The interface below is a web-adapted reconstruction based on the actual ST25L UI.
Smart Imaging Tools
Explore four imaging and connectivity tools available on the current model.
Explore the features
AI-assisted processing
Focused viewing
On-device capture
Wireless access
Essential controls are arranged around the compact platform for direct operation without interrupting the observation workflow.
A large front optical assembly and direct focusing control help keep target acquisition clear and deliberate across changing observation distances.
Standard package contents
Accessory image unavailable
Dedicated installation platform supplied with the ST35Pro package.
Supplied as part of the current standard package.
TECHNICAL DATA
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Product Resources
User documentation for the current model.
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User Manual
ST25L uses the same operating system and control logic as ST35Pro. The current shared manual is published under the ST35Pro file name and covers the common operating workflow. Model-specific performance specifications should be referenced on this product page.
