Bosch DS778 Long Range PIR Detector

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The wall mount, long range Bosch DS778 PIR Detector uses Motion Analyzer II signal processing to reduce false alarms. To aid in walk testing, the DS778 features a  high-efficiency alarm LED that is visible throughout the coverage pattern. This allows one installer to install and test the detector. The detector's internally pointable optics and mounting options provide installation flexibility.

Brand: Bosch
Part Number: DS-778

Availability: This item requires 3 business days to process.




DS778 Long Range PIR Detector

  • Motion Analyzer II processing
  • Pointable mirrored optics
  • Q-map signal processing
  • Long range coverage
  • Four mounting options

Signal Processing

Motion Analyzer II Bosch long range motion detector uses multiple thresholds and timing windows to analyze timing, amplitude, duration, and polarity of signals to make an alarm decision. Will not alarm on extreme levels of thermal and illumination disturbances caused by heaters and air conditioners, hot and cold drafts, sunlight, lightning, and moving headlights. Two sensitivity settings are provided.

Bosch PIR Detector Test Features

The high-efficiency alarm LED can be seen throughout the walk test area. Internal noise voltage test pins provide precise pattern location and background disturbance evaluation using a standard analog meter.

Insect and Draft Immunity

The sealed optical chamber provides immunity to drafts and insects.


Additional Info

Additional Info

Part Number DS-778
What's in the box 1 Detector 1 Hardware pack 1 Installation manual
Variant N/A


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Enclosure Design
Dimensions: 14.6 cm x 9.5 cm x 6.35 cm (5.75 in. x 3.75 in. x 2.5 in.)
Material: High impact ABS plastic enclosure
Environmental Considerations
OperatingTemperature:-40°C to +49°C (-40°F to +120°F)
                                  For UL Listed Applications, 0°C to + 49°C (+32°F to +120°F)
Radio Frequency Interference (RFI) Immunity: No alarm or setup on critical frequencies in the range from 26 MHz to 950 MHz at 50 V/m.
Complies with Environmental Class II (EN50130-5)
Height Range: Recommended 2 m to 2.6 m (6.5 ft to 8.5 ft)
Internal Pointability: Coverage is adjustable ±10° horizontally, +2° to -18° vertically.
Alarm: Form C contacts rated at 3.0 W, 125 mA at 28 VDC for resistive loads.
Tamper: Normally-closed. Contacts rated at 28 VDC, 125 mA maximum.
Power Requirements
Current Draw: 18 mA at 12 VDC
Voltage: 6 VDC to 15 VDC