Architectural and Engineering Specifications for
Wireless Model RF-SM-AC
The smoke alarm shall be Kidde Model RF-SM-AC or approved equal. It shall be 
powered by a 120VAC, 60Hz source along with a 9V battery backup. The unit 
shall incorporate an ionization sensor with nominal sensitivity of 0.60±0.1 percent/Ft. 
 The temperature operation rage shall be between 40F (4C) to 100F (38C) and the 
humidity operating range shall be up to 85% relative humidity.
The smoke alarm can be installed on any standard single gang electrical box, up 
to a 4” octagon junction box. The electrical connection (to the alarm) shall be 
made with a plug-in connector.
The smoke alarm shall work interconnected immediately out of the box without 
any user programming. A maximum of 24 Kidde devices can be interconnected 
in a multiple station arrangement. The interconnect system must not exceed the 
NFPA (National Fire Protection Association) limit of 18 initiation devices, of which 
12 can be smoke alarms. With 18 initiating devices (smoke, heat, CO, etc.), 
interconnected, it is still possible to interconnect 6 strobe lights and or relay 
modules.
The smoke alarm shall give fire alarm signals priority over all other signals. The 
smoke alarm shall incorporate a maximum allowable response delay from activation 
of an initiating device to receipt and alarm/display by the receiver/control unit of 
30 seconds. The smoke alarm shall automatically repeat alarm transmission at 
intervals not exceeding 60 seconds until the initiating device is returned to its 
non-alarm condition (per NFPA 72, Chapter 6, Section 6.16.3.2).
The smoke alarm shall have remote hush and low battery hush capabilities. The 
unit shall have alarm memory to indicate which alarm in a system was the initiating 
alarm (per NFPA 72, Chapter 6, Section 6.16.3.5). The unit shall provide optional 
tamper resistance that deters removal of the unit from the wall or ceiling.
The alarm shall include a test button that will electronically simulate the presence 
of smoke and cause the unit to go into alarm. This sequence tests the unit’s 
electronics, battery and horn to ensure proper operation.
The unit shall include a piezoelectric horn that is rated at 85 decibels at 10 feet. 
The smoke alarm shall produce an audible signal in the form of the “three pulse” 
temporal pattern. Each ON phase shall last 0.5-second +/-10 percent. After the 
third of these ON phases, there shall be an OFF phase that lasts 1.5 seconds +/10 percent. This pattern should repeat continuously without interruption. The 
unit shall also include a low battery warning utilizing a brief alarm chirp every 3040 seconds for a minimum of seven (7) days.
The unit shall incorporate one red LED to the alarm’s current status and mode of 
operation. The red LED will flash in conjunction with the alarm beep, and flash 
during a smoke alarm, a low battery mode and a unit error. The unit shall 
incorporate one green LED to indicate the alarm’s current status and mode of 
operation. The green LED will indicate one of five (5) conditions:
Standby Condition (powered by AC and battery backup)– The LED will be 
constant on
Standby Condition (powered by only battery backup) – The LED will flash 
approximately every 10 seconds.
Initiating Alarm Indicator – The LED will flash every second while sounding 
an alarm to signify that the alarm sensed a smoke hazard.
Alarm Memory Condition – The LED will flash every second signifying that 
the alarm sensed a smoke hazard. It will continue to flash every second until 
the test/reset button is pressed, thus resetting the alarm.
Hush® Mode Condition – The LED will flash every 2 seconds while the 
alarm is in Hush® Mode
The unit shall at a minimum meet the requirements of UL217, NFPA72. The State 
of California Fire Marshall, NFPA 101 (one and two family dwellings) Federal 
Housing Authority (FHA), Housing and Urban Development (HUD). It shall also 
include a 10-year manufacturer’s limited warranty.
Technical Specifications:
Power Source: 120VAC; 9V battery backup 
Audio Alarm: 85dB at 10ft 
Temperature Range: 40F (4.4C) to 100F (37.8C) 
Humidity Range: up to 85% relative humidity (RH)
Sensor: Ionization 
Wiring: Quick connect plug with 8” pigtails 
Size: 5.75” in diameter x 1.25” depth 
Weight: .5lb 
Interconnects: Up to 24 devices (of which 18 can be initiating)
Kidde Wireless System: Architectural, Engineering, and Technical Specifications
1016 Corporate Park Drive 
Mebane, NC 27302
Architectural and Engineering Specifications for
Wireless Model RF-SM-DC
The smoke alarm shall be Kidde Model RF-SM-DC or approved equal. It shall be 
powered by three (3) AA batteries. The unit shall incorporate an ionization sensor 
with nominal sensitivity of 0.69±0.19%/ft. The temperature operation range shall be 
between 40F (4C) to 100F (38C) and the humidity operating range shall be up to 85% 
relative humidity.
The smoke alarm shall work interconnected immediately out of the box without any 
user programming. A maximum of 24 Kidde devices can be interconnected in a 
multiple station arrangement. The interconnect system must not exceed the NFPA 
(National Fire Protection Association) limit of 18 initiation devices, of which 12 can 
be smoke alarms. With 18 initiating devices (smoke, heat, CO, etc.), interconnected, 
it is still possible to interconnect 6 strobe lights and or relay modules. The smoke 
alarm shall give fire alarm signals priority over all other signals. The smoke alarm 
shall incorporate a maximum allowable response delay from activation of an initiating 
device to receipt and alarm/display by the receiver/control unit of 30 seconds. The 
smoke alarm shall automatically repeat alarm transmission at intervals not exceeding 
60 seconds until the initiating device is returned to its non-alarm condition (per NFPA 
72, Chapter 6, Section 6.16.3.2).
The smoke alarm shall have remote hush and low battery hush capabilities. The unit 
shall have alarm memory to indicate which alarm in a system was the initiating alarm 
(per NFPA 72, Chapter 6, Section 6.16.3.5). The unit shall provide optional tamper 
resistance that deters removal of the unit from the wall or ceiling.
The alarm shall include a test button that will electronically simulate the presence of 
smoke and cause the unit to go into alarm. This sequence tests the unit’s electronics, 
battery and horn to ensure proper operation.
The unit shall include a piezoelectric horn that is rated at 85 decibels at 10 feet. The 
smoke alarm shall produce an audible signal in the form of the “three pulse” temporal 
pattern. Each ON phase shall last 0.5-second +/-10 percent. After the third of these 
ON phases, there shall be an OFF phase that lasts 1.5 seconds +/-10 percent. This 
pattern should repeat continuously without interruption. The unit shall also include 
a low battery warning utilizing a brief alarm chirp every 30-40 seconds for a minimum 
of seven (7) days.
The unit shall incorporate one red LED to indicate the alarm’s current status and mode 
of operation. The red LED will flash in conjunction with the alarm beep, and flash 
during a smoke alarm, a low battery mode and a unit error.
The unit shall incorporate one green LED to indicate the alarm’s current status and 
mode of operation. The green LED will indicate one of four (4) conditions:
Standby Condition – The LED will flash approximately every 10 seconds.
Initiating Alarm Indicator – The LED will flash every second while 
sounding an alarm to signify that the alarm sensed a smoke hazard.
Alarm Memory Condition – The LED will flash every second signifying that the 
alarm sensed a smoke hazard. It will continue to flash every second until the 
test/reset button is pressed, thus resetting the alarm.
Hush® Mode Condition – The LED will flash every 2 seconds while 
the alarm is in Hush® Mode
The unit shall at a minimum meet the requirements of UL217, NFPA72 (chapter 11 
2002 edition), The State of California Fire Marshall, NFPA 101 (one and two family 
dwellings) Federal Housing Authority (FHA), Housing and Urban Development (HUD). 
It shall also include a 10-year manufacturer’s limited warranty.
Technical Specifications:
Power Source: 3 AA batteries 
Audio Alarm: 85dB at 10ft 
Temperature Range: 40F (4.4C) to 100F (37.8C) 
Humidity Range: up to 85% relative humidity (RH) 
Sensor: Ionization 
Wiring: None 
Size: 5.75” in diameter x 1.25” depth 
Weight: .5lb 
Interconnects: Up to 24 devices ( of which 18 can be initiating)
KL-1279-9999DS   10K HP 1008