NFIRS 5.0 Element: ‘Detector Presence’

Définition : The existence of fire detection equipment within its designed range of the fire.
Purpose : Knowing whether or not detectors were present at the fire is useful for evaluating their effectiveness. Their effectiveness can be evaluated if they were present and within their designed range.
Entry : Check or mark the box that best describes the presence of detectors. If no detectors were present within their designed range of the fire, check or mark the None Present box and skip to Section M.

Element Specification

 Specification   Value 
Requirement Mandatory
Expected Length 1
Element Type Coded Field – The coded field relating to an entry in the code table. Most coded fields allow for Plus+ One codes. For these fields the expected length of the coded entry is depicted as (National length OR Plus+ One length). Only fields with this notation in the expected length column allow for Plus+ One definitions. If the user has not provided information, an empty field should be transmitted.


Here are the NFIRS codes for the ‘Detector Presence’ element

Detector Presence  Code 
Present 1
None Present N
Undetermined U

Relational Edit Rules for ‘Detector Presence’

NFIRS defines relational edit rules to ensure data consistency and accuracy in its database. These are the rules for ‘Detector Presence’.

Rule Group  Overview 
Relational Edit Rule 67 relational edit rule 67.
Relational Edit Rule 74 relational edit rule 74.

Transactions containing ‘Detector Presence’

The value of this element is captured by the following transaction :

Need more NFIRS help?

Here are some other useful ressources to learn more about NFIRS.

NFIRS Codes Cheat SheetNFIRS CodingNFIRS ExamplesFDIDsPOCsNFIRS TransactionsNFIRS ModulesNFIRS ElementsNFIRS RulesNFIRS ReferenceNFIRS Compliant ?

You can also read this NFIRS 5.0 Complete Reference Guide, and NFIRS 5.0 Design Documentation in order to have a deeper understanding of NFIRS 5.0. Here are also NFIRS 5.0 Forms ready for you to download and use.

We are here to help, Feel free to contact us if you need any additionnal informations.

Last Updated on April 28, 2023