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Morley-IAS MI-PSE-S2 Intelligent Optical Smoke Detector

£35.71 (inc VAT: £42.85)

Low Stock

SKU: MI-PSE-S2 Category: Brand:


The MI-PSE-S2 photoelectric smoke detector has a completely new detection chamber design, the result of many years of research and development. This delivers improved responsiveness, reduced sensitivity changes caused by settling dust and reduced false alarms resulting from insect ingress and other debris. The plug-in unit uses sophisticated processing circuitry that incorporates smoothing filters to help eliminate transient environmental noise conditions that can be the cause of unwanted alarms. The devices are managed by embedded software running complex algorithms that further improve resilience to false alarms and improve detection speed.

The MI-PSE-S2 has two integral tri-colour LEDs that provide 360° local visual indication of the device status. The LEDs are programmable with static or blinking red, amber and green status indications available.


  • New mechanical platform with revolutionary chamber offering improved false alarm immunity;
    • Improved detection across multiple fire types.
    • Improved resilience to false alarms through dust.
    • Removed risk of false alarms through insects.
  • Includes Series 200 Advanced Protocol.
  • Available with or without single pole short circuit isolation with status control through the Series 200 Advanced Protocol.
  • Tri colour LED offering red, green and amber colours.
  • Rotary decade address switches.
  • Pure white colour to compliment modern buildings.
  • 100% mechanical and electrical backwards compatibility.
  • New Base design to compliment the detector.


  • Max Wire Gauge for Terminals : 2.5mm2
  • Colour : Pure white
  • Material : PC/ABS
  • Operating Voltage Range : 15 to 28.5VDC
  • Isolation Current : 15mA at 24VDC
  • Maximum Continuous Current : 1A (Switch closed)
  • Temperature Range : -30°C to +70°C
  • Humidity : 10 to 93% relative humidity (non-condensing)
  • Approved To : EN54 (LPCB & CPD)
  • Weight : 97g (base inc)
  • Dimensions (Ø x h) : 102 mm x 43 mm in base B501AP
  • Approved To : EN54-7, EN54-5


Additional information

Weight 0.1 kg

Detection Type

Device Type

Hazardous Applications

Marine Applications


System Type

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