About the SR PT
The best thermal security cameras in the business, now with a fully integrated Pan/Tilt option
FLIR’s powerful SR-Series thermal security cameras complement and extend your security camera network. They turn night into day,
allowing you to see intruders invisible to the naked eye.
The new Pan/Tilt option is tough, fully integrated with the camera, and has a
proven Pelco D interface for reliable, trouble-free use.
For further information on the SR Series thermal imaging cameras click here or click the image below.

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 PT-19, SR PT-35, SR PT-50, SR PT-100, and SR PT-100P need no light at all.
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 PT-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 PT-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 PT-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 PT-100 you will be able to detect a man-sized target at a distance of almost 2km.
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Technical 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
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Please note that Power Supplies for all
Thermal Imagers must be purchased
separately (Handhelds and Kits Excluded) |
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This unit is available in a 9Hz Export Version. Please note exportation may require license from US Department of State. Learn More » |
Features
Crisp Thermal Images: 320x340 pixels
The SR PT-19, SR PT-35, SR PT-50 and SR PT-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. |
SR Series Detection, Recognition, Identification (DRI) |
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Detection |
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Recognition |
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Identification |
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Human DRI |
Vehicle DRI |
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36° Field-of-View |
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~ 1,017 feet |
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~ 310 meters |
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~ 262 feet |
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~ 80 meters |
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~ 131 feet |
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~ 40 meters |
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~ 2,887 feet |
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~ 880 meters |
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~ 754 feet |
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~ 230 meters |
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~ 360 feet |
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~ 110 meters |
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20° Field-of-View |
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~ 1,837 feet |
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~ 560 meters |
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~ 460 feet |
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~ 140 meters |
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~ 229 feet |
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~ 70 meters |
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~ 5,250 feet |
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~ 1.6 kilometers |
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~ 1,312 feet |
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~ 400 meters |
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~ 656 feet |
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~ 200 meters |
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14° Field-of-View |
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~ 2,560 feet |
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~ 780 meters |
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~ 656 feet |
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~ 200 meters |
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~ 328 feet |
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~ 100 meters |
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~ 7,217 feet |
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~ 2.2 kilometers |
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~ 1,902 feet |
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~ 580 meters |
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~ 951 feet |
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~ 290 meters |
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7° Field-of-View |
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~ 5,250 feet |
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~ 1.6 kilometers |
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~ 1,312 feet |
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~ 400 meters |
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~ 656 feet |
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~ 200 meters |
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~ 14,435 feet |
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~ 4.4 kilometers |
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~ 3,608 feet |
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~ 1.1 kilometers |
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~ 1,902 feet |
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~ 580 meters |
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7° Field-of-View |
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~ 5,250 feet |
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~ 1.6 kilometers |
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~ 1,312 feet |
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~ 400 meters |
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~ 656 feet |
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~ 200 meters |
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~ 14,435 feet |
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~ 4.4 kilometers |
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~ 3,608 feet |
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~ 1.1 kilometers |
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~ 1,902 feet |
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~ 580 meters |
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Human DRI
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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:
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Detection |
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1.5 pixels / 0.75m = 2 pixels per meter |
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Recognition |
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6 pixels / 0.75m = 8 pixels per meter |
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Identification |
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12 pixels / 0.75m = 16 pixels per meter |
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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) |
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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:
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Detection |
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1.5 pixels / 0.75m = 2 pixels per meter |
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Recognition |
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6 pixels / 0.75m = 8 pixels per meter |
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Identification |
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12 pixels / 0.75m = 16 pixels per meter |
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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) |
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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 |
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1.5 pixels / 0.75m = 2 pixels per meter |
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Recognition |
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6 pixels / 0.75m = 8 pixels per meter |
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Identification |
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12 pixels / 0.75m = 16 pixels per meter |
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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) |
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SR Series Specifications |
| Model |

SR-19
• 19mm Focal Length
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SR-35
• 35mm Focal Length
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SR-50
• 50mm Focal Length
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SR-100
• 100mm Focal Length
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SR-100P
• 100mm Focal Length |
| Detector Type |
Long Life, Uncooled
VOx Microbolometer
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Long Life, Uncooled
VOx Microbolometer
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Long Life, Uncooled
VOx Microbolometer
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Long Life, Uncooled
VOx Microbolometer
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Long Life, Uncooled
VOx Microbolometer |
| Effective Resolution |
324 x 240
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324 x 240
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324 x 240
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324 x 240
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324 x 240 |
| Pixel Pitch |
38um
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38um
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38um
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38um
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38um |
| Focal Length (mm) |
19mm
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35mm
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50mm
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100mm
|
100mm |
| Field of View in degrees |
36° x 27°
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20° x 15°
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14° x 10°
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7° x 5°
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7° x 5° |
| Zoom, Optical, Electronic |
N/A
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2x E-Zoom
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2x E-Zoom
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2x E-Zoom
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2x E-Zoom |
| Spectral Range |
7.5 to 13.5 µm
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7.5 to 13.5 µm
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7.5 to 13.5 µm
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7.5 to 13.5 µm
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7.5 to 13.5 µm |
| Focus Range |
N/A
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21 ft to ~ (fixed)
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30 ft to ~ (fixed)
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5 ft to ~ (fixed)
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5 ft to ~ (fixed) |
| Detect Man Sized Target |
1500'
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2500'
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3500'
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1.34 Miles
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1.34 Miles |
| Outputs |
Composite Video
NTSC/PAL
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Composite Video
NTSC/PAL
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Composite Video
NTSC/PAL
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Composite Video
NTSC/PAL
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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
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Standard
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Standard
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Standard
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Standard |
| Software Developers Kit |
Optional
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Optional
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Optional
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Optional
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Optional |
| Weight |
4.6 lbs, 2.1 kg
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5.0 lbs, 2.7 kg
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5.0 lbs, 2.7 kg
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7.2 lbs, 3.3 kg
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11.5 lbs, 5.2 kg |
| Dimensions (L,W,H) |
25.4 d x 10.9 h cm
(9.9 x 10.9 in)
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11" x 5.2" x 5.6"
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11" x 5.2" x 5.6"
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11" x 5.2" x 5.6"
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11" x 5.2" x 5.6" |
| Power Requirements |
12 Volts DC
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14-32 VDC or 24 VAC
+/- 10%
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14-32 VDC or 24 VAC
+/- 10%
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14-32 VDC or 24 VAC
+/- 10%
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14-32 VDC or 24 VAC
+/- 10% |
| Power Consumption |
2W Quiescent, 15 W (max)
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6W Nominal, 24W Peak,
at 24 VDC
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6W Nominal, 24W Peak,
at 24 VDC
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8W Nominal, 24W Peak,
at 24 VDC
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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 |
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