3-1
 
 
This chapter contains general notes, specifications, and mounting information for the TrueAlarm 
Sensors, Sensor Bases and QuickConnect Smoke Sensors. 
 
WARNING:  Be sure that the location of each smoke sensor and each heat 
sensor has been planned per local and national fire codes  
(see NFPA 72). 
 
Smoke sensor sensitivities are set and continuously monitored by the control panel.  This 
functionality complies with NFPA 72.  When functional testing of these sensors is required per 
NFPA 72, use the test methods described in Chapter 5 of this manual “Compatibility and Testing.” 
 
Refer to NFPA 72 for application, test, and maintenance requirements. 
 
The 4098-9733 heat sensor and 4098-9754 multi-sensor provide a Rate-of-Rise function that is 
software programmed and selectable at 15° F (8.3° C) or 20° F (11.1° C) per minute.  The  
4098-9733 and 4098-9754 also provide general temperature monitoring within the range of  
32°-122° F (0°-50° C). 
 
Refer to the page number listed in this table for information on a specific topic. 
 
Topic  See Page # 
4098 TrueAlarm Sensors  3-2 
4098 TrueAlarm Sensor Bases  3-3 
4098 TrueAlarm QuickConnect Smoke Sensors  3-12 
 
Table 3-1. 4098-9733 Spacing 
Agency Program Selection Spacing 
UL 
135
º
F (57 C) 
60 X 60 ft 
(18.3 X 18.3 m) 
UL 
155
º 
F (68 C) 
40 X 40 ft 
(12.2 X 12.2 m) 
FM 
135
º 
F/155
º 
F (57 C/68 C) 
RTI = Quick 
20 X 20 ft 
(6.1 X 6.1 m) 
FM 
135
º 
F/155
º 
F (57 C/68 C) 
with 15 or 20
 º 
F/min (8.3 or 
11.1 C/min)Rate of Rise 
RTI = Ultra Fast 
50 X 50 ft 
(15.2 X 15.2 m) 
 
 
Chapter 3 
TrueAlarm Sensors, Sensor Bases, and  
QuickConnect Smoke Sensors 
Introduction 
 
In this Chapter