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  8. Linear Beam Detector
  9. Linear Beam Detector
    Dahua

    Linear Beam Detector

    Stock Code: YJ104

    Catches smoke along a beam line in tall, open spaces.
    A linear beam smoke detector for tall indoor spaces with large open volumes. It forms a beam between 5 m and 100 m from transmitter to receiver and watches the smoke density along that line. It draws about 30 mA from a 24 V DC supply.
    5 m – 100 mWorking distance
    1.8 dBAlarm sensitivity
    24 VOperating Voltage
    30 mAWorking current
    -35 °C ~ +65 °COperating Temperature
    Key features
    Wide voltage rangeIt runs between 18 V and 36 V and tolerates supply fluctuation.
    Easy alignmentAn adjustment angle of ±5° up and ±10° down aligns the transmitter to the receiver.
    Status indicatorIn standby the blue light flashes every 4 seconds; on alarm the red light stays lit.
    Built for harsh roomsIt works between -35 °C and +65 °C and up to 95% relative humidity.
    Light housingIt measures 78.5 mm × 123.0 mm × 115.0 mm and weighs 0.3 kg.
    Technical Specification
    Working Voltage 24V (36V to 18V)
    Working Current 30 mA (25 mA to 45 mA)
    Indicator Light Standby: Blue indicator flashes once every 4 seconds
    Alarm: Red indicator is steady on
    Working Distance 5 m – 100 m (16.40 ft – 328.08 ft)
    Alarm Sensitivity 1.8 dB
    Dimensions 78.5 mm × 123.0 mm × 115.0 mm (3.09" × 4.84" × 4.53")
    Weight 0.3 kg (0.66 lb)
    Operating Temperature -35°C to +65°C (-31°F to +149°F)
    Operating Humidity ≤ 95% RH (non-condensing)
    Adjustment Angle About ±5° up and ±10° down
    Installation Angle <15° offset: ±0.2 m/60 m

    Datasheet

    YJ104

    pdf5/16/2024

    Teknik Çizim

    YJ104

    pdf5/16/2024

    Fotoğraf

    YJ104

    png6/30/2025

    YJ104

    png6/30/2025

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