Hochiki ESP Addressable Photo Electric Smoke Sensor (Ivory) - ALN-EN

Hochiki ESP
£28.20 (Inc. VAT)
£23.50 (Ex. VAT)
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Hochiki ESP Addressable Photo Electric Smoke Sensor (Ivory) - ALN-EN

The Hochiki Photo Electric Smoke Sensor (ALN-EN) is a direct replacement of the ALG-EN and will share the same bases.  The ALN-EN is a Photoelectric Smoke Sensor, which is fully compatible with Hochiki's ESP Analogue Addressable Protocol.  The ALN-EN is available in in ivory and white. 

The ALN-EN incorporates Hochiki's newest High Performance Chamber Technology removing the need to use Ionisation Smoke Sensors in the majority of applications.  This also allows the sensor threshold level to be increased, thereby improving the signal to noise ratio and reducing susceptibility to false alarms.  The ALN-EN smoke chamber is easily removed or replaced for cleaning and utilises a unique improved baffle design which allows smoke to enter the chamber whilst keeping out ambient light.


  • Removable, High Performance Chamber 
  • Twin LEDs allow 360° viewing - Green when polling, turn red in fire
  • locking mechanism (sensor to base)
  • Variable sensitivity 
  •  Electronically addressed
  • Pulsing/ non-pulsing controlled from panel (control panel compatibility required)
  • Approved by LPCB and VdS
  • SIL 2 approved variant available


  • Enhanced Performance Chamber
  • New outer Cover Design 
  • Software Advances
  • Increased Noise Immunity 
  • Fully Backwards Compatible


Hochiki ESP Optical Smoke Sensor Datasheet