Gentex GX series

From The Fire Panel
GX series
Manufacturer

Gentex Corporation {"label": "Manufacturer", "field": "Gentex Corporation"}

Color(s)
Red
White
{"label": "Color(s)", "field": "
Red
White
"}
Rated Voltage

12 VDC & 24 VDC & 120 VAC {"label": "Rated Voltage", "field": "12 VDC & 24 VDC & 120 VAC"}

Succeeded by

Gentex Commander series {"label": "Succeeded by", "field": "Gentex Commander series"} 

{
    "rows": [],
    "title": "GX series",
    "images": []
}

The Gentex GX series is a series of mini-horns, strobes, and mini-horn strobes.

History

The GX90 mini-horns were released in 1986.[1] The GX90S horn strobes were released in 1987.[2]

GXS strobes were released around 1988 and redesigned around 1992

The GX90S horn strobes were discontinued in 2001 due to the release of the Commander series.[3] All GXS strobes except the 120 VAC 177 candela models were also discontinued at this time.[4]

The GX91 and GX93 were released in 2001 with a new design that resembled the Commander2 remote horns. The GX93 had a temporal 3 option to compete with the Wheelock MIZ series.[5] In 2002, the GX90 was discontinued.[6]

The GX91 horns were discontinued at the end of 2011 to focus support on the GX93 horns.[7]

The 120 VAC 177 candela GXS strobes were discontinued in September 2022.[8]

Models

Strobes

Model Voltage Candela Synchronization Mounting Lettering Color
GXS-2-LWR 10-16 VDC 17.8 Free-run Wall FIRE Red
GXS-2-LWB 10-16 VDC 17.8 Free-run Wall FIRE Beige
GXS-2-LCR 10-16 VDC 17.8 Free-run Ceiling None Red
GXS-2-LCB 10-16 VDC 17.8 Free-run Ceiling None Beige
GXS-2-HWR 10-16 VDC 100 Free-run Wall FIRE Red
GXS-2-HWB 10-16 VDC 100 Free-run Wall FIRE Beige
GXS-2-HCR 10-16 VDC 100 Free-run Ceiling None Red
GXS-2-HCB 10-16 VDC 100 Free-run Ceiling None Beige
GXS-4-LWR 21-30 VDC 17.8 Free-run Wall FIRE Red
GXS-4-LWB 21-30 VDC 17.8 Free-run Wall FIRE Beige
GXS-4-LCR 21-30 VDC 17.8 Free-run Ceiling None Red
GXS-4-LCB 21-30 VDC 17.8 Free-run Ceiling None Beige
GXS-4-HWR 21-30 VDC 100 Free-run Wall FIRE Red
GXS-4-HWB 21-30 VDC 100 Free-run Wall FIRE Beige
GXS-4-HCR 21-30 VDC 100 Free-run Ceiling None Red
GXS-4-HCB 21-30 VDC 100 Free-run Ceiling None Beige
GXS-120 120 VAC 120 Free-run Wall None Beige
GXS-2-15-1WR 10-16 VDC 15 Free-run Wall FIRE Red
GXS-2-15-1WB 10-16 VDC 15 Free-run Wall FIRE Beige
GXS-2-15-1PWR 10-16 VDC 15 Free-run Wall None Red
GXS-2-15-1PWB 10-16 VDC 15 Free-run Wall None Beige
GXS-2-15/75WB 10-16 VDC 15/75 Free-run Wall FIRE Beige
GXS-2-15/75PWB 10-16 VDC 15/75 Free-run Wall None Beige
GXS-2-15/75CB 10-16 VDC 15/75 Free-run Ceiling FIRE Beige
GXS-2-15/75PCB 10-16 VDC 15/75 Free-run Ceiling None Beige
GXS-4-15-1WR 21-30 VDC 15 Free-run Wall FIRE Red
GXS-4-15-1WB 21-30 VDC 15 Free-run Wall FIRE Beige
GXS-4-15-1PWR 21-30 VDC 15 Free-run Wall None Red
GXS-4-15-1PWB 21-30 VDC 15 Free-run Wall None Beige
GXS-4-15/75WB 21-30 VDC 15/75 Free-run Wall FIRE Beige
GXS-4-15/75PWB 21-30 VDC 15/75 Free-run Wall None Beige
GXS-4-15/75CB 21-30 VDC 15/75 Free-run Ceiling FIRE Beige
GXS-4-15/75PCB 21-30 VDC 15/75 Free-run Ceiling None Beige
GXS-4-30-1WR 21-30 VDC 30 Free-run Wall FIRE Red
GXS-4-30-1WB 21-30 VDC 30 Free-run Wall FIRE Beige
GXS-4-30-1PWR 21-30 VDC 30 Free-run Wall None Red
GXS-4-30-1PWB 21-30 VDC 30 Free-run Wall None Beige
GXS-4-30/75WB 21-30 VDC 30/75 Free-run Wall FIRE Beige
GXS-4-30/75PWB 21-30 VDC 30/75 Free-run Wall None Beige
GXS-4-30/75CB 21-30 VDC 30/75 Free-run Ceiling FIRE Beige
GXS-4-30/75PCB 21-30 VDC 30/75 Free-run Ceiling None Beige
GXS-4-60-1WR 21-30 VDC 60 Free-run Wall FIRE Red
GXS-4-60-1WB 21-30 VDC 60 Free-run Wall FIRE Beige
GXS-4-60-1PWR 21-30 VDC 60 Free-run Wall None Red
GXS-4-60-1PWB 21-30 VDC 60 Free-run Wall None Beige
GXS-4-110-1WR 21-30 VDC 110 Free-run Wall FIRE Red
GXS-4-110-1WB 21-30 VDC 110 Free-run Wall FIRE Beige
GXS-4-110-1PWR 21-30 VDC 110 Free-run Wall None Red
GXS-4-110-1PWB 21-30 VDC 110 Free-run Wall None Beige
GXS-2-15WR[9] 10-16 VDC 15 Free-run Wall FIRE Red
GXS-2-15WW 10-16 VDC 15 Free-run Wall FIRE White
GXS-2-15PWR 10-16 VDC 15 Free-run Wall None Red
GXS-2-15PWW 10-16 VDC 15 Free-run Wall None White
GXS-2-15/75WR 10-16 VDC 15/75 Free-run Wall FIRE Red
GXS-2-15/75WW 10-16 VDC 15/75 Free-run Wall FIRE White
GXS-2-15/75PWR 10-16 VDC 15/75 Free-run Wall None Red
GXS-2-15/75PWW 10-16 VDC 15/75 Free-run Wall None White
GXS-2-15/75CR 10-16 VDC 15/75 Free-run Ceiling FIRE Red
GXS-2-15/75CW 10-16 VDC 15/75 Free-run Ceiling FIRE White
GXS-2-15/75PCR 10-16 VDC 15/75 Free-run Ceiling None Red
GXS-2-15/75PCW 10-16 VDC 15/75 Free-run Ceiling None White
GXS-4-15WR 21-30 VDC 15 Free-run Wall FIRE Red
GXS-4-15WW 21-30 VDC 15 Free-run Wall FIRE White
GXS-4-15PWR 21-30 VDC 15 Free-run Wall None Red
GXS-4-15PWW 21-30 VDC 15 Free-run Wall None White
GXS-4-15/75WR 21-30 VDC 15/75 Free-run Wall FIRE Red
GXS-4-15/75WW 21-30 VDC 15/75 Free-run Wall FIRE White
GXS-4-15/75PWR 21-30 VDC 15/75 Free-run Wall None Red
GXS-4-15/75PWW 21-30 VDC 15/75 Free-run Wall None White
GXS-4-15/75CR 21-30 VDC 15/75 Free-run Ceiling FIRE Red
GXS-4-15/75CW 21-30 VDC 15/75 Free-run Ceiling FIRE White
GXS-4-15/75PCR 21-30 VDC 15/75 Free-run Ceiling None Red
GXS-4-15/75PCW 21-30 VDC 15/75 Free-run Ceiling None White
GXS-4-15/75WRZ 21-30 VDC 15/75 Synchronized Wall FIRE Red
GXS-4-15/75WWZ 21-30 VDC 15/75 Synchronized Wall FIRE White
GXS-4-15/75PWRZ 21-30 VDC 15/75 Synchronized Wall None Red
GXS-4-15/75PWWZ 21-30 VDC 15/75 Synchronized Wall None White
GXS-4-30WR 21-30 VDC 30 Free-run Wall FIRE Red
GXS-4-30WW 21-30 VDC 30 Free-run Wall FIRE White
GXS-4-30PWR 21-30 VDC 30 Free-run Wall None Red
GXS-4-30PWW 21-30 VDC 30 Free-run Wall None White
GXS-4-30/75WR 21-30 VDC 30/75 Free-run Wall FIRE Red
GXS-4-30/75WW 21-30 VDC 30/75 Free-run Wall FIRE White
GXS-4-30/75PWR 21-30 VDC 30/75 Free-run Wall None Red
GXS-4-30/75PWW 21-30 VDC 30/75 Free-run Wall None White
GXS-4-30/75CR 21-30 VDC 30/75 Free-run Ceiling FIRE Red
GXS-4-30/75CW 21-30 VDC 30/75 Free-run Ceiling FIRE White
GXS-4-30/75PCR 21-30 VDC 30/75 Free-run Ceiling None Red
GXS-4-30/75PCW 21-30 VDC 30/75 Free-run Ceiling None White
GXS-4-60WR 21-30 VDC 60 Free-run Wall FIRE Red
GXS-4-60WW 21-30 VDC 60 Free-run Wall FIRE White
GXS-4-60PWR 21-30 VDC 60 Free-run Wall None Red
GXS-4-60PWW 21-30 VDC 60 Free-run Wall None White
GXS-4-110WR 21-30 VDC 110 Free-run Wall FIRE Red
GXS-4-110WW 21-30 VDC 110 Free-run Wall FIRE White
GXS-4-110PWR 21-30 VDC 110 Free-run Wall None Red
GXS-4-110PWW 21-30 VDC 110 Free-run Wall None White
GXS-120-177WR 120 VAC 177 Free-run Wall FIRE Red
GXS-120-177WW 120 VAC 177 Free-run Wall FIRE White
GXS-120-177PWR 120 VAC 177 Free-run Wall None Red
GXS-120-177PWW 120 VAC 177 Free-run Wall None White
GXS-120-177CR 120 VAC 177 Free-run Ceiling FIRE Red
GXS-120-177CW 120 VAC 177 Free-run Ceiling FIRE White
GXS-120-177PCR 120 VAC 177 Free-run Ceiling None Red
GXS-120-177PCW 120 VAC 177 Free-run Ceiling None White

Horns

Model Voltage Tones Color Replaced Replaced by
GX90-2R[10] 10-14 VDC Continuous Red None GX91R
GX90-2W 10-14 VDC Continuous White None GX91W
GX90-4R 21-30 VDC Continuous Red None GX91R
GX90-4W 21-30 VDC Continuous White None GX91W
GX91R[11] 8-33 VDC Continuous Red GX90-2R
GX90-4R 		GX93R
GX91W 8-33 VDC Continuous White GX90-2W
GX90-4W 		GX93W
GX93R 8-33 VDC Continuous/temporal Red GX91R Still in production
GX93W 8-33 VDC Continuous/temporal White GX91W Still in production

Horn strobes

Model Voltage Candela Strobe synchronization Mounting Lettering Color Replaced Replaced by
GX-90S-2[12] 12 VDC Free-run Wall FIRE Red None GX90S-2H
GX-90S-4 24 VDC Free-run Wall FIRE Red None GX90S-4L

GX90S-4H

GX90S-2H 12 VDC 21 Free-run Wall FIRE Red GX-90S-2 GX90S-2-15-1WR

GX90S-2-15/75WR

GX90S-4L 24 VDC 17.8 Free-run Wall FIRE Red GX-90S-4 GX90S-4-15WR

GX90S-4-15/75WR

GX90S-4H 24 VDC 100 Free-run Wall FIRE Red GX-90S-4 GX90S-4-15-1WR

GX90S-4-15/75WR GX90S-4-30-1WR GX90S-4-30/75WR GX90S-4-60-1WR GX90S-4-110-1WR

GX90S-2-15-1WR 10-14 VDC 15 Free-run Wall FIRE Red GX90S-2H GX90S-2-15WR
GX90S-2-15-1WB 10-14 VDC 15 Free-run Wall FIRE White None GX90S-2-15WW
GX90S-2-15-1PWR 10-14 VDC 15 Free-run Wall None Red None GX90S-2-15PWR
GX90S-2-15-1PWB 10-14 VDC 15 Free-run Wall None White None GX90S-2-15PWW
GX90S-2-15/75WB 10-14 VDC 15/75 Free-run Wall FIRE White GX90S-2H GX90S-2-15/75WW
GX90S-2-15/75PWB 10-14 VDC 15/75 Free-run Wall None White None GX90S-2-15/75PWW
GX90S-2-15/75CB 10-14 VDC 15/75 Free-run Ceiling FIRE White None GX90S-2-15/75CW
GX90S-2-15/75PCB 10-14 VDC 15/75 Free-run Ceiling None White None GX90S-2-15/75PCW
GX90S-4-15-1WR 21-30 VDC 15 Free-run Wall FIRE Red GX90S-4L

GX90S-4H

GX90S-4-15WR
GX90S-4-15-1WB 21-30 VDC 15 Free-run Wall FIRE White None GX90S-4-15WW
GX90S-4-15-1PWR 21-30 VDC 15 Free-run Wall None Red None GX90S-4-15PWR
GX90S-4-15-1PWB 21-30 VDC 15 Free-run Wall None White None GX90S-4-15PWW
GX90S-4-15/75WB 21-30 VDC 15/75 Free-run Wall FIRE White GX90S-4L

GX90S-4H

GX90S-4-15/75WW
GX90S-4-15/75PWB 21-30 VDC 15/75 Free-run Wall None White None GX90S-4-15/75PWW
GX90S-4-15/75CB 21-30 VDC 15/75 Free-run Ceiling FIRE White None GX90S-4-15/75CW
GX90S-4-15/75PCB 21-30 VDC 15/75 Free-run Ceiling None White None GX90S-4-15/75PCW
GX90S-4-30-1WR 21-30 VDC 30 Free-run Wall FIRE Red GX90S-4H GXS90-4-30WR
GX90S-4-30-1WB 21-30 VDC 30 Free-run Wall FIRE White GX90S-4H GXS90-4-30WW
GX90S-4-30-1PWR 21-30 VDC 30 Free-run Wall None Red GX90S-4H GXS90-4-30PWR
GX90S-4-30-1PWB 21-30 VDC 30 Free-run Wall None White GX90S-4H GXS90-4-30PWW
GX90S-4-30/75WB 21-30 VDC 30/75 Free-run Wall FIRE White GX90S-4H GX90S-4-30/75WW
GX90S-4-30/75PWB 21-30 VDC 30/75 Free-run Wall None White GX90S-4H GX90S-4-30/75PWW
GX90S-4-30/75CB 21-30 VDC 30/75 Free-run Ceiling FIRE White GX90S-4H GX90S-4-30/75CW
GX90S-4-30/75PCB 21-30 VDC 30/75 Free-run Ceiling None White GX90S-4H GX90S-4-30/75PCW
GX90S-4-60-1WR 21-30 VDC 60 Free-run Wall FIRE Red GX90S-4H GX90S-4-60WR
GX90S-4-60-1WB 21-30 VDC 60 Free-run Wall FIRE White GX90S-4H GX90S-4-60WW
GX90S-4-60-1PWR 21-30 VDC 60 Free-run Wall None Red GX90S-4H GX90S-4-60PWR
GX90S-4-60-1PWB 21-30 VDC 60 Free-run Wall None White GX90S-4H GX90S-4-60PWW
GX90S-4-110-1WR 21-30 VDC 110 Free-run Wall FIRE Red GX90S-4H GX90S-4-110WR
GX90S-4-110-1WB 21-30 VDC 110 Free-run Wall FIRE White GX90S-4H GX90S-4-110WW
GX90S-4-110-1PWR 21-30 VDC 110 Free-run Wall None Red GX90S-4H GX90S-4-110PWR
GX90S-4-110-1PWB 21-30 VDC 110 Free-run Wall None White GX90S-4H GX90S-4-110PWW
GX90S-2-15WR 10-14 VDC 15 Free-run Wall FIRE Red GX90S-2-15-1WR None
GX90S-2-15WW 10-14 VDC 15 Free-run Wall FIRE White GX90S-2-15-1WB None
GX90S-2-15PWR 10-14 VDC 15 Free-run Wall None Red GX90S-2-15-1WR None
GX90S-2-15PWW 10-14 VDC 15 Free-run Wall None White GX90S-2-15-1WB None
GX90S-2-15/75WR 10-14 VDC 15/75 Free-run Wall FIRE Red None None
GX90S-2-15/75WW 10-14 VDC 15/75 Free-run Wall FIRE White GX90S-2-15/75WB None
GX90S-2-15/75PWR 10-14 VDC 15/75 Free-run Wall None Red None None
GX90S-2-15/75PWW 10-14 VDC 15/75 Free-run Wall None White GX90S-2-15/75PWB None
GX90S-2-15/75CR 10-14 VDC 15/75 Free-run Ceiling FIRE Red None None
GX90S-2-15/75CW 10-14 VDC 15/75 Free-run Ceiling FIRE White GX90S-2-15/75CB None
GX90S-2-15/75PCR 10-14 VDC 15/75 Free-run Ceiling None Red None None
GX90S-2-15/75PCW 10-14 VDC 15/75 Free-run Ceiling None White GX90S-2-15/75PCB None
GX90S-4-15WR 21-30 VDC 15 Free-run Wall FIRE Red GX90S-4-15-1WR HS24-15WR
GX90S-4-15WW 21-30 VDC 15 Free-run Wall FIRE White GX90S-4-15-1WB HS24-15WW
GX90S-4-15PWR 21-30 VDC 15 Free-run Wall None Red GX90S-4-15-1PWR HS24-15PWR
GX90S-4-15PWW 21-30 VDC 15 Free-run Wall None White GX90S-4-15-1PWB HS24-15PWW
GX90S-4-15/75WR 21-30 VDC 15/75 Free-run Wall FIRE Red None HS24-15/75WR
GX90S-4-15/75WW 21-30 VDC 15/75 Free-run Wall FIRE White GX90S-4-15/75WB HS24-15/75WW
GX90S-4-15/75PWR 21-30 VDC 15/75 Free-run Wall None Red None HS24-15/75PWR
GX90S-4-15/75PWW 21-30 VDC 15/75 Free-run Wall None White GX90S-4-15/75PWB HS24-15/75PWW
GX90S-4-15/75CR 21-30 VDC 15/75 Free-run Ceiling FIRE Red None GCC24CR
GX90S-4-15/75CW 21-30 VDC 15/75 Free-run Ceiling FIRE White GX90S-4-15/75CB GCC24CW
GX90S-4-15/75PCR 21-30 VDC 15/75 Free-run Ceiling None Red None GCC24PCR
GX90S-4-15/75PCW 21-30 VDC 15/75 Free-run Ceiling None White GX90S-4-15/75PCB GCC24PCW
GX90S-4-15/75WRZ 21-30 VDC 15/75 Synchronized Wall FIRE Red None HS24-15/75WR
GX90S-4-15/75WWZ 21-30 VDC 15/75 Synchronized Wall FIRE White None HS24-15/75WW
GX90S-4-15/75PWRZ 21-30 VDC 15/75 Synchronized Wall None Red None HS24-15/75PWR
GX90S-4-15/75PWWZ 21-30 VDC 15/75 Synchronized Wall None White None HS24-15/75PWW
GXS90-4-30WR 21-30 VDC 30 Free-run Wall FIRE Red GX90S-4-30-1WR HS24-30WR
GXS90-4-30WW 21-30 VDC 30 Free-run Wall FIRE White GX90S-4-30-1WB HS24-30WW
GXS90-4-30PWR 21-30 VDC 30 Free-run Wall None Red GX90S-4-30-1PWR HS24-30PWR
GXS90-4-30PWW 21-30 VDC 30 Free-run Wall None White GX90S-4-30-1PWB HS24-30PWW
GX90S-4-30/75WR 21-30 VDC 30/75 Free-run Wall FIRE Red None HS24-75WR
GX90S-4-30/75WW 21-30 VDC 30/75 Free-run Wall FIRE White GX90S-4-30/75WB HS24-75WW
GX90S-4-30/75PWR 21-30 VDC 30/75 Free-run Wall None Red None HS24-75PWR
GX90S-4-30/75PWW 21-30 VDC 30/75 Free-run Wall None White GX90S-4-30/75PWB HS24-75PWW
GX90S-4-30/75CR 21-30 VDC 30/75 Free-run Ceiling FIRE Red None GCC24CR
GX90S-4-30/75CW 21-30 VDC 30/75 Free-run Ceiling FIRE White GX90S-4-30/75CB GCC24CW
GX90S-4-30/75PCR 21-30 VDC 30/75 Free-run Ceiling None Red None GCC24PCR
GX90S-4-30/75PCW 21-30 VDC 30/75 Free-run Ceiling None White GX90S-4-30/75PCB GCC24PCW
GX90S-4-60WR 21-30 VDC 60 Free-run Wall FIRE Red GX90S-4-60-1WR HS24-60WR
GX90S-4-60WW 21-30 VDC 60 Free-run Wall FIRE White GX90S-4-60-1WB HS24-60WW
GX90S-4-60PWR 21-30 VDC 60 Free-run Wall None Red GX90S-4-60-1PWR HS24-60PWR
GX90S-4-60PWW 21-30 VDC 60 Free-run Wall None White GX90S-4-60-1PWB HS24-60PWW
GX90S-4-110WR 21-30 VDC 110 Free-run Wall FIRE Red GX90S-4-110-1WR HS24-110WR
GX90S-4-110WW 21-30 VDC 110 Free-run Wall FIRE White GX90S-4-110-1WB HS24-110WW
GX90S-4-110PWR 21-30 VDC 110 Free-run Wall None Red GX90S-4-110-1PWR HS24-110PWR
GX90S-4-110PWW 21-30 VDC 110 Free-run Wall None White GX90S-4-110-1PWB HS24-110PWW

Rebrands

Edwards

Edwards model Gentex model Replaced Replaced by
128D-024 GX90-4R
128D-124 GX90-4W
129D-024 GX-90S-4
129D-124

FireX

FireX rebranded the GXS-120-177WW as the model 240 strobe as part of the 242 and 244 smoke alarm "hearing impaired kits."

National Time & Signal

National Time model Gentex model Replaced Replaced by
SG-HN24[13] GX90-4R SG-MINI-HN
SG-HN24-WH GX90-4W SG-MINI-HN-WH
SG-MINI-HN[14] GX91R SG-HN24
SG-MINI-HN-WH GX91W SG-HN24-WH
SG-MINI-HNZ GX93R Still in production
SG-MINI-HNZ-WH GX93W Still in production

Potter

Potter model Gentex model Replaced
MHT-1224R[15] GX93R
MHT-1224W GX93W
MHT-1224PR GX93PR
MHT-1224PW GX93PW

Simplex

Simplex model Gentex model Replaced
4903-9103 GX90S-4H
4903-9224 GX90S-4-15/75WR

Universal Security Instruments

Universal Security Instruments rebranded the GXS-120-177WR as the USI-2177 for use with the USI-960 relay.[16] The USI-2177 was sold together with the USI-960 and smoke alarms as the USI-2413, 2417, and 2453 kits. The USI-2177 was eventually replaced with the SLW127, which responds differently to each type of emergency.[17]

References

  1. ↑ https://nfpa.access.preservica.com/uncategorized/IO_f9b7ca48-08f2-492c-824b-94fcd05e8436/
  2. ↑ https://nfpa.access.preservica.com/uncategorized/IO_de126b0a-583a-4f8b-9592-5f6d04f4240c/
  3. ↑ "Gentex GX90/GX90S Series" Gentex Corporate web site. Archive 2001-06-29 vs. 2001-08-20
  4. ↑ "Gentex GXS Series" Gentex Corporate web site. Archive 2001-06-29 vs. 2001-08-20
  5. ↑ "GX Series" Gentex Corporate web site. Archive 2001-06-24 vs. 2001-08-05
  6. ↑ "GX Series" Gentex Corporate web site. Archive 2002-02-15 vs. 2002-04-27
  7. ↑ https://web.archive.org/web/20111105033111/http://www.gentex.com/sites/default/files/GX91%20Discontinue%20Letter_Website_1.pdf
  8. ↑ https://fireprotection.gentex.com/files/GXS7139_Series_Discontinuation_Notice.pdf
  9. ↑ "Gentex GXS Series" (GX092096-6). Gentex.
  10. ↑ "Gentex GX90/GX90S Series" (GX082096-7). Gentex.
  11. ↑ "Gentex GX91/GX93 Series" (GX030101-2). Gentex.
  12. ↑ https://www.schuminweb.com/fire_alarms/gentex-gx-90s-4/
  13. ↑ "Mini Remote Signal" (384). National Time & Signal Corporation (March 2002).
  14. ↑ "Mini Remote Signal" (407). National Time & Signal Corporation (March 2002).
  15. ↑ "MHT-1224 Series" (8830065). Potter (June 2013).
  16. ↑ "Model USI-2177 120 Volt AC Powered 177 Candela Strobe". Universal Security Instruments (2009).
  17. ↑ "LED Wall Mounted Smart Strobe Light". USI Electric (January 7, 2020).
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