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Kidde - Firex Compatibility Replacement Chart
 Due to popular demand, Munro has released this compatibility chart for our valuable customers. Click on links below for pricing and availability.

** Kidde - Firex Compatibility Chart . Click here for Smoke Alarm FAQ's

Kidde Cross Reference FireX OLD Order Number Kidde NEW Order Number
Smoke Alarms    

AC/DC Ionization w/ Front-Load Battery

4618 21007581 - I4618
  5000 21007582
  46182 21007583
  4618-10 21007584
  4618CL 21007585
  4618-6 21007586
  461864 21007588
  46184 N/A
  50004 N/A
AC/DC Ionization w/ Rear-Load Battery 4518 21006378 - I12040
  4518-10 21006378 - I12040
  45186 21006378 - I12040
  45186-5 21006378 - I12040
  1018, -2 and -3 21006378 - I12040
  451823 21006928
  45183 21006373
  45183-24 21006373
  45184 N/A
AC/DC Ionization w/Rear-Load Lith. Battery 45189 21007288
AC/DC Photoelectric w/Rear-Load Battery 4480 21006371 - PE120E
  4480-6 21006371
AC Only Ionization 406 21006374 - I12020
  421 21006374 - I12020
  428 21006374 - I12020
  431 21006374 - I12020
  41213 21006374 - I12020
  41216 21006374 - I12020
  41216-72 21006374 - I12020
  1012-2, -3, and 1013 21006374 - I12020
AC Only Photoelectric 484 21006371 - PE120E
DC Ion 461 0914E
  462 0914E
  4651 900-0136-003
  4671 900-0136-003
  4671CL 900-0136-003
  471 900-0136-003
  4015 900-0136-003
  465 0916E
  4000 0916E
  4003 0916E
  4009 0918E
  120 0914E
  122 0915E
DC Only Photoelectric 4006 PE9E
  480 PE9E
DC Only Dual Sensor 4021 21006659
  4021L 21006659
Combination Smoke/Carbon Monoxide Alarms    
AC/DC Ionization w/Front-Load Battery 12000 21006377
  12001L N/A
DC Ionization w/Front-Load Battery 12200 900-0102-02
  12201L N/A
Carbon Monoxide Alarms    
AC/DC w/Front-Load Battery 10000 21006406
AC Outlet Plug-in 6030 21006137
DC w/Front-Load Battery 10200 9CO5-02
     
Accessories    
Heat Alarm 5700 HD135F
Strobe Light 240 SL177I
  240B SL177I
Kits for Hearing Impaired 242 SL177I
  243 SL177I
  250 SL177I
Relays 497 SM120X
  498 CO120X
  499 SM120X
  499C SM120X
  501 SM120X & CO120X
** Older Firex Models
0428,FXW-1,FXW-1A, FXW-R, FX1014, FX1020, FX1103,FX1106
N/A
  ADC, 120-1072B, 120-538B, 120-1182, 5000, 120-577B, FADC, AD, 120-1070, FX1218, 4418,4518
21007581 - I4618
  4418,ADC, 120-1072B, 4518, 120-538B, 120-1182, 5000, 120-557B, FADC, AD, 120-1070, FX1218
21006378 -  I12040
  G-120,G-18,G-6,GC,H,41216 21006374 - I12020
** Note Changing of wiring harness may be needed.

N/A