Featured Products and Technologies

NEW: Dual Ray Technology for detection of smallest particles
Detectors equipped with Dual Ray Technology stand for ultimate precision:

• With the detection of smallest smoke particles (test fire TF1) an even more reliable and early fire detection is achieved
• Dual Ray Technology takes advantage of the Mie principle to determine smoke density and particle size, comparing the intensity of scattered light from the differing wavelengths of two LED sources, one infrared and one blue
• As a result the reduction of false alarms by more reliable differentiation between fire and disturbances is achieved
• Dual Ray Technology is integrated in the new dual-optical variants (FAP-DO 420, FAP-DOT 420, FAP-DOTC 420)
  

1. Blue LED
2. Infrared LED
3. Scattered Light
4. Photo Diode

A cost-effective approach – The FAP-DO 420

• Detects test fire TF1 with a dual-optical sensor
• This results in a cost-advantage over some competitors which require a multisensor detector (optical and thermal or dual-optical and thermal sensors) to provide detection of TF1

ISP (Intelligent Signal Processing) Technology
All 420 Series detectors use Bosch's own Intelligent Signal Processing (ISP) Technology, which achieves the highest level of intelligent fire detection.

Mode of operation for ISP

• Sensor signals are analyzed and linked together, and processed through the ISP technology, using a unique algorithm
• The algorithm itself is based on rules derived from the experience of 5,000 fire patterns
• If the combined signals correspond to a specific fire-pattern, an alarm is triggered

Benefits

• More precise analysis of sensor signals
• Best-in-class differentiation between real fires and disturbances
  

• The 420 Series detectors are equipped with different kinds of sensors to detect every kind of fire (Single optical sensor, dual-optical sensor, Thermal sensor and Chemical (CO gas) sensor)
• Equipped with Dual Ray Technology and Intelligent Signal Processing (ISP), the Automatic Fire Detector 420 Series detects fires faster than ever and minimizes false alarms, for the highest levels of protection and reliability in every environment
• Fewer False Alarm:
  Specific parameters, separate from the fire patterns, increase the detector's precision. There are pre-programmed settings, for example, for use in dusty environments, or when smokers are present. These parameters make the detector even better at distinguishing fires from other disturbances over a broader range of operating conditions
• Earlier Detection:
  In addition, the multisensor algorithm parameters are adapted to different application types, to further optimize early fire detection and false alarm immunity. They also enhance immunity from ambient influences such as dust, humidity, and temperature variation. This ensures best-in-class differentiation between real fires and disturbances
• The Automatic Fire Detector 420 Series is a secure investment that delivers maximum value. Built with components that meet the highest Bosch standards for quality, every 420 Series detector is remarkably reliable and has proven longevity
• Every model meets the rigorous requirements of the EN54 standard
• The FAP-DO 420 detector can also be used to replace ionization detectors, which use radioactive material that requires special handling and is extremely difficult to recycle
• 420 Series supports programmable parameters so it's easy to create a system fully tailored to individual needs
  

• EMC stability of 50 V/m from 1 MHz to 3 GHz for use in areas with a WLAN
• Drift compensation in optical and gas measurements for optimal detection at all times
• Day/night mode switching for individual sensor configuration
• Two integrated isolators for maintaining loop functionality and operability in the event of wire interrupts or short circuits
• Colored rings on each detector identify the sensor variants
• Bosch's LSN bus Technology for fire and intrusion systems can be used to connect the 420 Series, along with all the other fire peripherals, to a fire panel
  

Accurate detection, everywhere you need it
Different substances burn differently, and no two fires are exactly alike. Smoldering paper in a waste basket, for example, generates smoke but very little heat, while an industrial fire involving ethanol gives off no smoke yet has a strong heat flow. 

The 420 Series takes all these possibilities into account, meeting EN54 fire-type requirements and offering options that cover every fire criteria, from type of material and heat flow to airstream, smoke emission, and aerosol characteristics.

The new dual-optical models, with their high precision Dual Ray Technology, deliver an added level of reliability and provide early detection in even the most challenging environments, including nightclubs, parking garages, and computer rooms.