Main features:
1. The body structure is compact and the size is small, supporting one-handed operation.
2. Equipped with a 1280×960 resolution display, the picture is clear and easy to observe and view.
3. Built-in WiFi image transmission function, combined with the mobile phone APP, enables real-time picture browsing, video recording, taking photos, video playback, and device control operations.
4. The protection level reaches IP66; after testing, it can withstand a 1-meter height drop impact (Note: The drop test is a specific laboratory test and cannot guarantee no damage in all scenarios).
5. Supports hotspot tracking, picture-in-picture, cross-line marking, multi-color coding, distance measurement and other practical functions.

Model | KRY290D-325 | KRY290D-335 | KRY290D-635 | |
Detector performanc e | Detector type | Uncooled focal plane | ||
Pixel | 384×288 | 384×288 | 640×480 | |
Image function | Field of view | 14°*10.5° | 10.7°*8.0° | 17.7°*13.3° |
Focal length | 25mm | 35mm | 35mm | |
Base magnification | 1.64x | 2.3x | 1.38x | |
Focus range | 1m~∞ | |||
Noise equivalent temperature difference | <50mk@30℃ | |||
Frame rate | 50HZ | |||
Focus | Manual focus | |||
Electronic zoom | 2X,3X,4X | |||
Picture in Picture | Yes | |||
Distance estimation | Yes | |||
Wavelength range | 8-14μm | |||
Image transmission | WiFi real-time image transmission, support mobile APP image browsing, taking pictures, video and other functions | |||
Cross cursor | Yes | |||
Hot spot tracking | Yes | |||
Laser pointer | Yes | |||
Image display | Display | Color LCOS1280*960 (eyepiece diopter adjustable) | ||
Image polarity | Black hot, white hot, red hot, iron red | |||
Diopter adjustment | Adjust by knob | |||
Power | Battery type | Lithium battery, rechargeable | ||
system | Battery working time | 4 hours continuous | ||
Charging type | USB charging, power bank support | |||
External power supply | DC5V/2A(Micro USB) | |||
Environmen tal specificatio n | Working temperature | -20℃- +50℃ | ||
Storage temperature | -40℃- +60℃ | |||
Protection level | IP66 | |||
Drop resistance | 1 M | |||
Physical properties | Weight | 0.45kg | ||
Size | 200*71*71mm | |||
Connector | Power connector | Yes | ||
Video output | PAL | |||
USB | External charging | |||
Detection distance | Human 1.8*0.5m | 700m | 1000 m | 1000m |
Vehicle 2.3*2.3m | 1100m | 1500 m | 1500m | |
Recognition distance | Human 1.8*0.5m | 350m | 500 m | 500m |
Vehicle 2.3*2.3m | 560m | 790 m | 790m | |