Bosch ISM-BLD1 Blue Line Series TriTech Detectors
The ISM-BLBLD1 TriTech® Detectors use a combination of passive infrared (PIR) and microwave detection technologies with advanced signal processing. These small unobtrusive detectors are simple to install and do not need field adjustments.
These detectors are available in three frequencies:
| Frequency | | Detector |
| 9.9 GHz | | ISM-BLD1- F3 |
| 10.525 GHz | | ISM-BLD1- F1 |
| 10.687 GHz | | ISM-BLD1- F4 |
Features
- 11 m x 11 m (35 ft x 35 ft) broad coverage
- Dual detection technologies with advanced signal processing
- Flexible mounting height from 2.3 m to 2.7 m (7.5 ft to 9 ft)
- No range or height adjustments required
- Supervised microwave; microwave range can be adjusted
- Eight detection layers including optional look-down zone
- Draft and insect immunity
- Temperature compensation
- Combined cover and wall tamper
- Optional camera, nightlight, and sounder modules
Functions
- Advanced Signal Processing - Adaptive processing adjusts to background disturbances, reducing false alarms without sacrificing the ability to respond to an intruder.
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. Each sensor (PIR and microwave) processes signals individually, and both sensors must agree there is an alarm before the alarm relay activates.
- Test Features - An externally-visible, tricolor (blue, yellow, green) alarm LED (light-emitting diode) indicates each sensor's status.
- Supervised Microwave - The microwave circuit is fully-supervised. If the microwave subsystem fails, the PIR subsystem provides single technology coverage.
- Draft and Insect Immunity - The sealed optical chamber prevents drafts and insects from affecting the detector.
- Temperature Compensation - The detector adjusts its sensitivity to maintain its ability to identify human intruders at critical temperatures.
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