Gas detector – Second Sight MS - Bertin Technologies


Gas detector – Second Sight MS

Second Sight MS is the only standoff gas cloud detector for real time surveillance and with source localization.

The Second Sight MS is a passive, long range chemical and toxic gas clouds detector that is ideally suited to military and civil security operations due to its compact, lightweight and modular design.

It has been designed for early warning and real time visualization of suspicious gas clouds. With its infrared sensor, it shows as an overlay the localization of dangerous gases such as toxic industrial gases or chemical warfare agents (nerve gases or vesicants).

Second Sight can identify the family of the gas and measure its path length concentration.

With its unique gas X feature, it also detects gases that are not in the database, which is ideal when gases are impure, mixed or unknown. With a night and day infrared imaging capability and the largest Field of View (FOV) of any stand-off detector in the market, this tried and tested system is a clear favorite with military forces, law enforcement agencies and emergency responders around the world.


The only standoff gas detector for real time surveillance and with source localization.

It’s the perfect solution for critical area surveillance and protection against chemical threats (chemical warfare agents and toxic industrial compounds).

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Reasons to choose Gas detector – Second Sight MS

Gas detector – Second Sight MS

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  •  Infrared spectral imaging

Catalogue number:

  • 003075-003

Detection range and Field of View:

  • Detection up to 1000m with 60×48° FOV
  • Detection up to 2000m with 30×24° FOV
  • Detection up to 5000m with 12×9° FOV

Detected gas:

  • Gas X: detect all gas clouds that absorb in band III infrared
  • Most CWA and TIC

Time to alarm:

  • in approx. 10 seconds

Scan mode vertical angle:

  •  180° x 15° in less than 3 minutes

Dimensions & Weight:

  • Head camera: 35 x 19 x 24 cm 5.2 kg
  • Processing unit: 26 x 19 x 15 cm 5 kg


  • – 20°C to 45°C (operation)
  • – 20°C to 70°C (storage)


  •  Mil Std 810-G

Ingress protection:

  • IP65

Wide field of view:

  • Early warning by real-time detection of the chemical gas cloud
  • The widest monitored field of view to enable source localization and cloud movement

High detection capabilities:

  • Identification of CWA & TIC in the database
  • Detection of unknown, impure or mixed gas with gas X feature
  • Source point and contamination area indicated
  • Alarm video available for replay and rapid sharing

Easy deployment:

  • Light and nomadic for one-off surveillance
  • 24/7 critical infrastructure
  • Custom mounting for CBRN reconnaissance vehicles

Each gas has its own absorption spectrum and presents typical absorption peaks in infra-red bands II (3 to 5 µm MWIR) and bands III (8 to 14 µm LWIR). Second Sight operates in band III, in order to use the particular peaks to enable the identification of a vast majority of gases. The Second Sight measurement principle uses the scene background as an infra-red source, and image processing algorithms to highlight the presence of a gas cloud in the line of sight.

In the event of an alarm, the presence of a gas cloud is displayed as an overlay on the infrared image. The identification and estimated path length concentration are given in the top left corner and the gas is underlined in red in the gas list.

The latest version of Second Sight is becoming a universal gas detector with its new detection algorithm Gas X, an unknown gas detection capability that enables the detection of any gas cloud modifying the infrared signature in band III of the observed scene, even if the gas is not listed in the system’s database.

Vehicle mounting

The vehicle mounting is a mechanical interface to easily attach the head camera with its pan & tilt on the roof of any vehicle.

GPS option

The GPS coordinates of the Second Sight is given in the Graphic User Interface. It highlights the area of surveillance on a map. Integrated with a compass, it also gives the direction of the Second Sight when used with Pan & Tilt.


Lightweight and compact battery designed with lithium-ion technology to offer 5.5 hours of autonomy

12° objective

Specific lens for surveillance up to 5km. This lens is compatible with any Second Sight and can be replaced by the user

Reasons to choose Gas detector – Second Sight MS

Large field of view for a wide area of surveillance

Live detection for rapid action

Detection even if the gas is not listed in the system database

Easy-to-operate solution

Vehicle option in case of nomad operations


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