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Bosch Blue Line Gen2 TriTech ISC-BDL2-W12G

Brand: BOSCH

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Bosch Blue Line Gen2 TriTech ISC-BDL2-W12G


The Blue Line Gen2 TriTech Motion Detectors (ISCBDL2) use a combination of passive infrared (PIR) and microwave Doppler radar detection with advanced signal processing.

The pet‑friendly (‑WP) models generate alarms for human intruders without generating false alarms for pets. These small unobtrusive detectors are simple to install and do not need field adjustments.



  • Dynamic Temperature Compensation – superior catch performance in any environment
  • Microwave Noise Adaptive processing – reduce false alarms from repetitive sources
  • Wall to Wall Coverage – superior catch performance
  • Flexible Mounting Height, No Adjustments – reduce installation time and false alarms, improve catch performance
  • Self-locking Enclosure with Integrated Bubble Level – reduce installation time



First Step Processing (FSP)

First Step Processing (FSP) almost instantly responds to human targets without producing false alarms from other sources. FSP adjusts the detector's sensitivity based on signal amplitude, polarity, slope, and timing. This eliminates the need for the installer to select the sensitivity level, thus improving ease of installation and reliability.

Pet‑friendly Selectivity (‑WP models only)

The installer can turn pet immunity on or off based upon application requirements. When pet immunity is turned off, the detector provides superior catch performance identical to the non‑pet models. When pet immunity is turned on, the detector can istinguish between signals caused by humans and signals caused by pets. It ignores signals caused by one or two pets up to 45 kg (100 lb) or numerous rodents.

Microwave Noise Adaptive Processing

Microwave Noise Adaptive Processing adjusts to background disturbances, reducing false alarms without sacrificing intruder detection.

Dynamic Temperature Compensation

The detector intelligently adjusts its sensitivity so that it can identify human intruders at virtually any temperature.

Wall-to-Wall Coverage

An improved lookdown zone and coverage range of 12 m x 12 m (40 ft x 40 ft) provide wall-to-wall coverage.

Self-locking Enclosure

The sliding self‑locking enclosure has an integrated bubble level and custom gap‑free, lift‑gate style terminal blocks to make installation easier.

Sealed Optics and Electronics

The optics and electronics are assembled into the front enclosure and sealed with a protective cover to prevent damage during installation. The sealed optical chamber also prevents drafts and insects from affecting the detector.

Test Features

Externally visible alarm LED can be disabled after installation.

RFI and Impact Immunity

E-models feature improved immunity to false alarms from external sources including radio frequency interference, “popcorn noise”, as well as physical impact. Through use of a high performance pyro (infrared) sensor with integrated signal filtering, the highest quality electrical components and design that produces the best-in-class signal to noise ratio, and sophisticated signal processing, these detectors are more robust than ever against false alarms.

Improved Resistance to Sabotage

E-model detectors are now tested and approved to the EN50131-5-3 requirements for immunity to interference from external radio frequency sources. Detection performance and false alarm immunity are ensured when in the presence of such sources that could degrade the performance of detectors that are not approved to this standard.