Cranford Controls

RIU Remote Indicator Units 24Vdc

Product Overview

The RIU unit is used to give a remote indication of the status of a single or groups of fire detectors in alarm state utilising an LED with a wide area of illumination and high on/off contrast.

The units are compatible with the majority of conventional and addressable systems and can also be used for security and process control applications.

The standard version is a single gang flush mount unit, with or without ‘Fire Detector Operated’ text and also available with a deep back box for surface mounting.


  • Direct fit to a single gang deep back box
  • Text is available in other languages
  • IP66 weatherproof version available


Type Flush Mount Surface Mount Weather Proof
Voltage Range (Vdc) 5 – 28
Nom. Current Consumption (mA) 24
Protection Rating IP42 IP42 IP66
Boxed Weight (kg) 0.038 0.095 0.475
Colours Available White (ABS Fire-Retardant Plastic)


Part Numbers

502-001 Blank, Single Gang, Flush
502-002 Blank, Single Gang, Surface
502-003 “Fire Detector Operated” Text, Single Gang, Flush
502-004 “Fire Detector Operated” Text, Single Gang, Surface
502-011 “Fire Detector Operated” Text, Single Gang, Weatherproof, Surface