These requirements apply to multi detector test apparatus which are intended to supplement the in-service functional operation of multi-sensor detectors that may include@ but not be limited to the integral use or mutually exclusive use of heat detection@ smoke detection@ carbon monoxide/gas detection capabilities. These apparatus may consist of pressurized gas@ liquid@ solids or combination thereof to produce the necessary simulant. These products are not intended to assess the performance of the detector in accordance with the applicable Standard@ but are intended to verify functional operation of the detector as defined by the detector manufacturer. Multi-detector test apparatus are intended for handling and use by a qualified professional. These products are not intended for use in hazardous locations. These products have not been assessed for use in oxygen rich environments. Hazards and/or applications of the materials@ chemicals@ and/or pressurized container used to store the primary reactive component used to initiate the intended signaling performance@ have not been investigated. These products are battery operated and may consist of a limited energy@ Class 2 power supply/charging circuit. These products do not cover: a) Products covered by the Outline for CO Gas Test Kit for Gas and Vapor Detectors and Sensors@ SU 2075A; b) Products covered by the Certification Requirement Decision for smoke detector aerosol sprays issued for Smoke Detectors For Fire Alarm Systems@ UL 268; c) Test and certification requirements for Alarms@ Sensors and/or detectors; d) RF transmission of signals between devices; e) Primary or secondary battery charging circuits@ operational life or battery performance/safety requirements associated with rechargeable batteries; f) Performance and safety requirements associated with non-rechargeable batteries@ or g) Emergency signaling equipment as addressed in Standards such as@ but not limited to@ Gas and Vapor Detectors and Sensors@ UL 2075; General-Purpose Signaling Devices and Systems@ UL 2017; Smoke Detectors For Fire Alarm Systems@ UL 268; Control Units and Accessories for Fire Alarm Systems@ UL 864; the National Fire Alarm Code@ NFPA 72 and Standard for the Installation of Carbon Monoxide (CO) Detection and Warning Equipment@ NFPA 720.