Osiris Ranger LR

Utilising the latest advanced uncooled LWIR thermal technology, this mid to long range LR thermal camera is complemented by a long-range HD visible camera.

The LR range of cameras by Silent Sentinel are designed to bridge the gap between cooled and uncooled thermal cameras. all supplied in cable managed housings for protection in the harshest environments.

One of the key advantages of the LR range of cameras is to allow customers to benefit from enhanced uncooled performance (which is near to cooled camera performance) with overall lower lifetime costs normally associated with cooled thermal imaging cameras.

  • Zoom thermal lens options up to 300mm
  • HD, 33x 15.2 to 500mm, optical zoom visible camera
  • Lower cost of ownership when compared with an equivalent cooled MWIR system
  • 12μm pixel pitch for improved detection capabilities
  • <30mK* NETd thermal sensitivity
  • Thermal image stabilisation and push autofocus as standard
  • No cooler servicing costs

*As measured after image post-process techniques were applied

Sensitivity in the right environment

The Osiris Ranger LR has a fantastic 12μm pixel pitch allowing for improved detection capabilities. This also means the platform is ideal for applications such as maritime and border security where sensitivity is key.

Go the distance

The medium to long range thermal camera offers superior quality images over land and water. The Osiris Ranger LR is the ideal solution with mid-range thermal and HD visible zoom cameras, this platform is perfect for Maritime and Homeland Security applications.


Thermal Lens

Focal Length 25mm to 150mm 25mm to 225mm 40mm to 300mm
F Number F1.4 F1.5 F1.5
Horizontal Field of View 17.5° (W) to 3.0° (T) 17.5° (W) to 2.0° (T) 11.0° (W) to 1.5° (T)
Focus Manual motorised focus with push autofocus and Athermalization

Thermal Camera

Detector Type Uncooled VOx Microbolometer
Resolution 640 x 480
Pixel Size 12μm
Spectral Band 7.5 to 13 μm (LWIR)
Sensitivity <30 mK* (NETd) f/1.0 @ room temperature
Frame Rate 25Hz
Frequency 25Hz

Visible Lens

Focal Length / Optical Zoom 15.2mm to 500mm / 33x, motorised
F Number F3.0 to F32
Horizontal Field of View 23.42° (W) to 0.78° (T)
Focus Push auto focus and motorised manual focus

Visible Camera

Sensor 1/1.9” CMOS Sensor (2.38 MP)
Sensor Mode Full HD 1080p (1920 x 1080)
Shutter 1/20 to 1/10,000 (variable)
Digital Zoom
Video Output (PAL / NTSC)  IP and Composite (PAL / NTSC)

*As measured after image post-process techniques were applied

Accessories / Related Products


Key Facts

Long Range Platform

12μm Pixel Pitch

HD Video Zoom Cameras

Advanced Uncooled Thermal Cameras (up to 300mm)

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