About the SR Series
The SR-19, SR-35, SR-50, SR-100, and SR-100P are economic, fixed mounted thermal imagers. They provide crisp, clear thermal imagery in total darkness, light fog or smoke. They feature the same thermal imaging technology found in many of FLIR’s most sophisticated security and surveillance systems, but are packaged for users who have short- to medium-range security and surveillance as their primary application.

See also the VSR-6

They include FLIR’s advanced image processing techniques which deliver excellent contrast regardless of scene dynamics.
Unlike other night vision systems that require low amounts of light to generate an image, the SR-19, SR-35, SR-50, SR-100, and SR-100P need no light at all.
In-Depth Look at the SR Series
Crisp Thermal Images: 320x340 pixels
The SR-19, SR-35, SR-50 and SR-100 provide crisp, clear thermal imaging with 320 x 240 pixels. This allows the user to see more detail and detect more and smaller objects. Advanced internal camera software delivers a crisp image without the need for user adjustments. They provide high quality thermal imaging in any night- or daytime environmental conditions.
Different Lenses:
Different users have different needs. Longer lenses have a narrower field of view and give you the possibility to see targets which are further away. The SR-19 is equipped with a 19 mm wide angle lens. It gives you an extremely wide field of view (36°), so that you can cover a large area and keep excellent situational awareness.
Lensing:
The SR-35 equipped with a 35 mm lens, has a horizontal field of view of 20°. The SR-50, with a 50 mm lens, has a field of view of 14°. Both are extremely suited for short range threat detection in all circumstances.
Equipped with a 100 mm lens, the SR-100 is designed for longer range security and surveillance applications. It has a 7° field of view and can be focused over RS-232 or RS-422 protocol. With the SR-100 you will be able to detect a man-sized target at a distance of almost 2km.
|
SR Series Details
Pricing and Ordering Information
For a quote on thermal imaging products:
Call Toll Free: 1-888-919-2263
Outside US: +1-845-343-4077
or Contact a sales representative
through our contact page.
Sign up to ThermalVideo.com
for exclusive offers and pricing
Features
Easy to Install:
All three cameras can be easily connected to common power and video interfaces found in existing and new security systems.
They can be easily integrated into any existing CCTV infrastructure providing early detection and visibility 24/7 all the year round.
The images from the 320 x 240 pixels detector can be displayed on virtually any existing display that accepts composite video.
Design for use in Harsh Environments:
The SR-19, SR-35, SR-50 and SR-100 are extremely rugged systems.
Their vital core is well protected, meeting Mil-Std-810E and IP66 requirements, against humidity and water. A sealed lens maintains the environmental ratings of the existing enclosure.
They all operate between -32°C and +55°C. They have a built-in heater which ensures a clear lens and perfect infrared images displayed on your monitor even in extremely cold environments.
Easy to Use: All four versions are easy-to-use and require no operator training.
|
SR Series Detection, Range, Identification (DRI) |
|
Detection |
|
Recognition |
|
Identification |
|
|
| |
|
|
|
 |

Human DRI |
|
|

Vehicle DRI |
|
|
| |
|
|
|
 |

Human DRI |
|
|

Vehicle DRI |
|
|
| |
|
|
|
 |

Human DRI |
|
|

Vehicle DRI |
|
|
| |
|
|
|
 |

Human DRI |
|
|

Vehicle DRI |
|
|
| |
|
|
|
 |

Human DRI |
|
|

Vehicle DRI |
|
|
-
Human DRI
-
Vehicle DRI
Inflatable Boat DRI
The Johnson Criteria assumes that the critical dimension for a human being is 0.75 meters. To get DRI, you need 1.5 pixels, 6 pixels and 12 pixels across 0.75 meters in the object pane. That means:
Detection = 1.5 pixels / 0.75m = 2 pixels per meter
Recognition = 6 pixels / 0.75m = 8 pixels per meter
Identification = 12 pixels / 0.75m = 16 pixels per meter
Assuming that a man is 1.83m by 0.5m, the following would apply:

3.6 pixels by 1 pixel
(You can see something
is there) |

13 pixels by 5 pixels
(You can see that a
person is there) |

28.8 pixels by 8 pixels
(You can see that the
person looks like a soldier) |
The Johnson Criteria assumes that the critical dimension for a human being is 0.75 meters. To get DRI, you need 1.5 pixels, 6 pixels and 12 pixels across 0.75 meters in the object pane. That means:
Detection = 1.5 pixels / 0.75m = 2 pixels per meter
Recognition = 6 pixels / 0.75m = 8 pixels per meter
Identification = 12 pixels / 0.75m = 16 pixels per meter
Assuming that a vehicle is 4m by 1.5m, the following would apply:
2.8 pixels by 1 pixel
(You can see something
is there) |
13 pixels by 5 pixels
(You can see that a
vehicle is there) |
26 pixels by 10 pixels
(You can see that the
vehicle may be a humvee) |
The Johnson Criteria assumes that the critical dimension for a human being is 0.75 meters. To get DRI, you need 1.5 pixels, 6 pixels and 12 pixels across 0.75 meters in the object pane. That means:
Detection = 1.5 pixels / 0.75m = 2 pixels per meter
Recognition = 6 pixels / 0.75m = 8 pixels per meter
Identification = 12 pixels / 0.75m = 16 pixels per meter
Assuming that a inflatable boat is 9m by 1m, the following would apply:
4.5 pixels by 1 pixel
(You can see something
is there) |
18 pixels by 2 pixels
(You can see that a
boat of some kind is there) |
36 pixels by 4 pixels
(You can see that the boat
is a small Inflatable Boat) |
|
|
|
SR Series Specifications
| Model |

SR-19
• 19mm Focal Length
|

SR-35
• 35mm Focal Length
|

SR-50
• 50mm Focal Length
|

SR-100
• 100mm Focal Length
|

SR-100P
• 100mm Focal Length |
| Detector Type |
Long Life, Uncooled
VOx Microbolometer
|
Long Life, Uncooled
VOx Microbolometer
|
Long Life, Uncooled
VOx Microbolometer
|
Long Life, Uncooled
VOx Microbolometer
|
Long Life, Uncooled
VOx Microbolometer |
| Effective Resolution |
320 x 240
|
320 x 240
|
320 x 240
|
320 x 240
|
320 x 240 |
| Pixel Pitch |
38um
|
38um
|
38um
|
38um
|
38um |
| Focal Length (mm) |
19mm
|
35mm
|
50mm
|
100mm
|
100mm |
| Field of View in degrees |
36° x 27°
|
20° x 15°
|
14° x 10°
|
7° x 5°
|
7° x 5° |
| Zoom, Optical, Electronic |
N/A
|
2x E-Zoom
|
2x E-Zoom
|
2x E-Zoom
|
2x E-Zoom |
| Spectral Range |
7.5 to 13.5 µm
|
7.5 to 13.5 µm
|
7.5 to 13.5 µm
|
7.5 to 13.5 µm
|
7.5 to 13.5 µm |
| Focus Range |
N/A
|
21 ft to ~ (fixed)
|
30 ft to ~ (fixed)
|
5 ft to ~ (fixed)
|
5 ft to ~ (fixed) |
| Detect Man Sized Target |
1500'
|
2500'
|
3500'
|
1.34 Miles
|
1.34 Miles |
| Outputs |
Composite Video
NTSC/PAL
|
Composite Video
NTSC/PAL
|
Composite Video
NTSC/PAL
|
Composite Video
NTSC/PAL
|
Composite Video
NTSC/PAL |
| Serial Remote Interface |
RS-232 |
RS-232 |
RS-232 |
RS-422 (RS-232 Available) |
RS-422 |
| Camera Focus |
Fixed Focus (no adjustment needed) |
Fixed Focus (no adjustment needed) |
Fixed Focus (no adjustment needed) |
Motorized Focus Mechanism |
Motorized Focus Mechanism |
General Information |
| Point to Point (stand alone) |
Standard
|
Standard
|
Standard
|
Standard
|
Standard |
| Software Developers Kit |
Optional
|
Optional
|
Optional
|
Optional
|
Optional |
| Weight |
4.6 lbs, 2.1 kg
|
5.0 lbs, 2.7 kg
|
5.0 lbs, 2.7 kg
|
7.2 lbs, 3.3 kg
|
11.5 lbs, 5.2 kg |
| Dimensions (L,W,H) |
25.4 d x 10.9 h cm
(9.9 x 10.9 in)
|
11" x 5.2" x 5.6"
|
11" x 5.2" x 5.6"
|
11" x 5.2" x 5.6"
|
11" x 5.2" x 5.6" |
| Power Requirements |
12 Volts DC
|
14-32 VDC or 24 VAC
+/- 10%
|
14-32 VDC or 24 VAC
+/- 10%
|
14-32 VDC or 24 VAC
+/- 10%
|
14-32 VDC or 24 VAC
+/- 10% |
| Power Consumption |
2W Quiescent, 15 W (max)
|
6W Nominal, 24W Peak,
at 24 VDC
|
6W Nominal, 24W Peak,
at 24 VDC
|
8W Nominal, 24W Peak,
at 24 VDC
|
8W Nominal, 24W Peak,
at 24 VDC |
| User Control |
Via devices supporting Pelco-D protocol or Windows-based application program (Windows-based GUI) |
| Connector Style |
Screw Terminals (accepts tinned wire leads) |
Screw Terminals (accepts tinned wire leads) |
Screw Terminals (accepts tinned wire leads) |
Screw Terminals (accepts tinned wire leads) |
16-Pin Mating Connector |
|