Optical detectors detect the fire ball created by the ammunition penetrating into the armour within 3 milliseconds, before it reaches to the pressure and heat level that can harm its surrounding, and send an alarm signal to control box on vehicles which are hit by RPG or ATGM rockets. It detects heat and light waves at different frequencies by UV and IR sensors within it, makes required matches and send flame signal to control box. Detectors are genuinely designed by Nero Industry engineers according to NATO Stanag 4317 and American MIL PRF 62546C standards. UVIR flame detectors have also successfully passed high temperature, low temperature, humidity, shock-vibration, corrosion and EMI/EMC tests as per MIL-STD-810H and MIL-STD-461F standards.

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Product Description & Technical Document

DS-2912202116001421-0853-EN TECHNICAL DOCUMENT


The purpose of a triple IR optical detector is to detect the presence of objects or individuals based on their infrared radiation signature. The detector uses three different wavelengths of infrared light to accurately differentiate between human beings and other sources of heat, such as animals or machinery. This technology is commonly used in security systems, where it can detect intruders or unauthorized personnel in restricted areas. The triple IR optical detector is also used in various industrial applications, including manufacturing, where it can help monitor equipment for overheating or malfunction.

Detectors have been specially designed as IP67 and can stay under 1 meters of water for half an hour. The detectors also having protection for false alarms, do not react against false alarms such as sunlight, vehicle headlights, welding beam, infrared heater, cigarette ash. Along with these systems protecting the engine and the crew on military armoured vehicles, electric vehicles, buses, planes, jet planes and ships; total 40 thousand detector accomplish their duty in the field.

Where to use

Triple IR optical detectors can be used in many different areas for fire detection systems.

They are commonly used in industrial facilities or warehouses as part of fire detection systems. These detectors help to detect fires early and enable quick intervention, which reduces fire damage.

Triple IR detectors can also be used in fire detection systems for commercial buildings, offices, and other large structures. When used in combination with other fire suppression methods such as sprinklers or gas-based extinguishing systems, they can help to identify the source of a fire and bring it under control more quickly.

In addition, triple IR optical detectors are widely used in the marine industry. High-risk environments such as ships and other seafaring vessels benefit greatly from these detectors, which help to detect and suppress fires quickly.

Triple IR detectors are also used as part of fire detection systems in aircraft and other aviation vehicles, playing an important role in maintaining safety during flight.

In military applications, triple IR detectors are used in fire detection and suppression systems for military bases, depots, and vehicles. They help to detect fires early and provide fast intervention to prevent damage to personnel and equipment.

In the defense industry, triple IR optical detectors are also used in the manufacture of military vehicles, ships, and aircraft, helping to reduce material losses and protect personnel against fire hazards.


There are different types of Triple IR optical detectors, which include:

  1. Conventional Triple IR Detectors: These detectors operate using three different infrared wavelengths and are typically used as fire detection systems in industrial facilities, offices, and commercial buildings.
  2. Microprocessor-Controlled Triple IR Detectors: These detectors are controlled by microprocessors to increase sensitivity and are used more commonly in high-risk industrial facilities.
  3. Addressable Triple IR Detectors: These detectors have an address and are used in fire detection systems for large structures with multiple detectors. The address of each detector allows for easy identification of which detector has triggered the alarm.
  4. Linear Triple IR Detectors: These detectors are used to detect fires over long distances. They are positioned along a line to accurately pinpoint the location of the fire.
  5. Triple IR Detectors Equipped with Multiple Detection Sensors: These detectors are designed to provide more accurate fire detection results when used in conjunction with secondary sensors such as smoke detectors.


Triple IR optical detectors are a type of thermal detector that can operate in three different wavelengths (IR1: 4.5 μm – 5.5 μm, IR2: 3.0 μm – 3.6 μm, and IR3: 0.8 μm – 1.2 μm). The features of these detectors are as follows:

  1. High sensitivity: Triple IR optical detectors can detect low temperature differences, providing high sensitivity.

  2. Wide coverage area: Triple IR optical detectors are sensitive to heat that spreads over a wide area, providing a wide coverage area.

  3. Low response time: Triple IR optical detectors help quick intervention in emergency situations with their fast response times.

  4. Long lifespan: Triple IR optical detectors are made of durable materials and designed for long-term use.

  5. Good monitoring feature: Triple IR optical detectors provide better monitoring by using multiple wavelengths and reducing false alarms.

  6. Easy installation: Triple IR optical detectors have an easy installation feature and are suitable for many different areas.

Using ultra-fast semiconductor IR quantum sensors, the TRIPLE IR OPTICAL DETECTOR is able to distinguish flames from other light sources, being sensitive only to specific optical wavelengths and flame pulse frequencies.

To trigger an alarm, the 3 IR sensors will need to be energized, which avoids false alarms caused by various factors like sunlight fluctuations.

Two high performance microprocessors

Sophisticated software algorithms and two microprocessors provide the TRIPLE IR OPTICAL DETECTOR with the highest fire detection performance, as well as optimal false alarms rejection.

Up to 60 meters range

With an over 60 meters range in the “high sensitivity” setting, the TRIPLE IR OPTICAL DETECTOR is capable of detecting a 0.1 m2 heptane reference fire in a few seconds.

Its vision cone is, in terms of volumetric coverage, significantly higher than most IR3 detectors on the market.


  • Technology suitable for hydrocarbon (petrol, methane diesel, LPG, polypropylene), paper, wood fires and more.
  • Immunity and rejection of false alarms (arc welding, solar fluctuations, heat radiation)
  • Visualization and correct operation indicator: Green (energized), red (alarm), yellow (error)
  • ModBus RS-485 communication, analog output and relay
  • FM, ATEX, CE approvals and compliance with SIL 2 requirements

Example of TRIPLE IR OPTICAL DETECTOR applications

  • Oil refineries and production facilities
  • Offshore platforms, oil and gas pipelines
  • LNG / LPG pumping, loading and unloading stations
  • Storage and production of ethanol and methanol
  • Paints or solvents storage

Test Standarts

There are several standards available for testing triple IR optical detectors. Some of these include:

  1. EN 54-22: The EN 54-22 standard, which sets standards for fire alarm systems in Europe, is also used to test IR optical detectors.
  2. UL 268: The UL 268 standard, used in the United States, is used to determine the performance of fire detection devices and includes testing of IR optical detectors.
  3. FM Approval Standard: Factory Mutual (FM) Global is an organization that sets standards for fire safety solutions, and standards for testing IR optical detectors are also established by this organization.
  4. ISO 7240-24: The International Organization for Standardization (ISO) has established the ISO 7240-24 standard, which is part of the ISO 7240 series of general standards for fire alarm systems and includes testing of IR optical detectors.

These standards are used to measure the performance of IR optical detectors, ensure that they are functioning correctly, and are reliable.

What does it do

Triple IR optical detectors are a type of detector used in fire alarm systems. Fire detection devices help to diagnose fires at an early stage and facilitate quick intervention. Triple IR optical detectors are particularly used in industrial places, high-ceilinged areas, and harsh environments. For example, they can be used in chemical storage facilities, factories, refineries, waste management facilities, and similar places.

Technical Data Table


Headlight (55-65 W)

15 cm

Incandescent Lamp (100 W)

2,5 cm

Halogen Lamp (500 W)

5 cm

Fluorescent Light (40 W)

At any distance

UV Lamp (75 W)

At any distance

In-Vehicle Lighting (5 W)

At any distance


20 cm

Sodium Lamp (70-250 W)

At any distance

Xenon Lamp (30 W)

5 cm

Flashlight (1 W)

At any distance