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Bosch DS938Z Motion Detector

Bosch DS938Z  -  The Bosch DS938Z is a ceiling-mount, 360 degree passive infrared intrusion detectors that uses Motion Analyzer II to reduce false alarms. The DS938Z is equipped with advanced PIR detection and supervision circuits and is designed to provide an alarm condition upon detection of an intruder passing through its area of coverage. Motion Analyzer II uses multiple thresholds and timing windows to analyze timing, amplitude, duration, and polarity of signals to make an alarm decision, Three PIR sensitivity settings are available. Several unique self-test features, including Motion Monitor, provide coverage integrity. The DS938Z's field replaceable mirrored optics allow it to be mounted on ceilings from 8 ft. to 18 ft. (2.4 m to 5.5 m in height).
Full specifications (PDF)

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Bosch DS938Z Motion Detector
Bosch DS938Z Motion Detector

Bosch DS938Z Motion Detector Options

Full specifications (PDF)

Bosch DS938Z Motion Detector Model Overview

The DS938Z and ZX938Z are advanced ceiling-mount passive infrared intrusion detectors designed for optimal security and performance. Utilizing patented Motion Analyzer II technology, these detectors effectively minimize false alarms while providing reliable monitoring up to a 360° coverage with a diameter of 60 ft. (18.3 m). The ZX938Z model features an integrated POPIT for efficient alarm signaling, making installation simpler and more efficient. With adjustable mounting heights and user-replaceable optics, these detectors are tailored to fit a variety of installation needs while offering superior protection against intrusions.

Key Features
  • Motion Analyzer II Processing: Patented technology reducing false alarms.
  • Self-Test Supervision System: Monitors detector functionality continuously.
  • Changeable Mirrors: Field replaceable optics for versatile installation.
  • 360° Coverage: Effective monitoring over a wide area.
  • Built-in POPIT: Addressable alarm and trouble signaling (ZX938Z only).

Specifications
  • Coverage: 360° by 60 ft. (18.3 m) diameter.
  • Mounting Height: 8 ft. to 18 ft. (2.4 m to 5.5 m).
  • Power Requirements:
    • DS938Z: 6 to 15 VDC, 18 mA nominal @ 12 VDC.
    • ZX938Z: Less than 500 micro-amps.
  • Alarm Output: Form "C" reed relay rated at 3.0 watts, 125 mA @ 28 VDC.
  • Tamper Output: Normally closed tamper switch with rated contacts at 28 VDC, 125 mA maximum.
  • Storage Temp: -20° to +120°F (-29° to +49°C).
  • Test Features: Three visible high-output alarm LEDs.
  • Enclosure Design: High impact ABS with removable polyethylene dome.