1.5 These requirements, where applicable, also cover all remote accessories that are to be connected.

1.6 This standard does not cover the following:

1. a) Smoke detectors of the non-self-contained type that are intended for connection to a household or industrial system control unit. These are included in the Standard for Smoke Detectors for Fire Alarm Systems, UL 268 / ULC 529;

2. b) Mechanically operated single and multiple station fire alarm devices that are specified in the Standard for Single and Multiple Station Heat Alarms, UL 539 / ULC 589;

3. c) Heat detectors – except for the requirements in the Fire Test – Smoke Alarm with Supplementary Heat Detection, Section 72, incorporated as part of a single station smoke alarm assembly whose requirements are covered in the Standard for Single and Multiple Station Heat Alarms, UL 539 / ULC 589 and/or when part of a multi-criteria smoke alarm;

4. d) An accessory that is provided with a means to transmit alarm signals to a constantly attended, remote monitoring location. Any accessory capable of transmitting these types of signals is covered by the requirements in the Standard for Household Fire-Warning System Units, UL 985 or ULC-S545, Residential Fire Warning System Control Units;

5. e) A gas and vapor detector or sensor incorporated as a part of a smoke alarm assembly and covered by the Standard for Single and Multiple Station Carbon Monoxide Alarms, UL 2034, or CSA 6.19, Standard for Carbon Monoxide Alarming Devices, except when part of a multi-criteria smoke alarm.