System Sensor Multi-Alert series

Multi-Alert Series

Manufacturer	BRK (System Sensor) {"label": "Manufacturer", "field": "BRK (System Sensor)"}
Color(s)	Red Beige {"label": "Color(s)", "field": " Red Beige "}
Rated Voltage	12/24VDC {"label": "Rated Voltage", "field": "12/24VDC"}
Introduced	1987 {"label": "Introduced", "field": "1987"}
Discontinued	1997-2000 {"label": "Discontinued", "field": "1997-2000"}
Succeeded by	SpectrAlert {"label": "Succeeded by", "field": "SpectrAlert"}

{
    "rows": [],
    "title": "Multi-Alert Series",
    "images": [
        "System_Sensor_Multi-Alert_series_lineup.png"
    ]
}

Originally released under the BRK brand. The Multi-Alert series is a multi-tone sounder series. The Multi-Alert series was one of System Sensors first product series. They were also one of the first electronic horns on the market.

Tones

MA tone (BRK)	MA tone (System Sensor)	MAEH tone	A	B	C
Whoop	800 Hz Continuous	800 Hz Continuous		X	X
800 Hz Continuous	Slow Whoop	Fast Whoop	X	X	X
800/1000 Hz Hi-Lo	800/1000 Hz Hi-Lo	800/1000 Hz Fast-Dual	X		X
2400 Hz March Time	2400 Hz Interrupted	Chirp	X	X
2400 Hz Continuous	2400 Hz Continuous	2400 Hz Continuous			X
800 Hz March Time	1200 Hz Interrupted	Bell		X
Swept Frequency	Swept Frequency	Laser	X
Fast warble	Fast warble	Electromechanical

Models

MA series

Model Number	Sounder voltage	Strobe voltage	Candela	Mounting	Color	Lettering	Replaced By
MA12/24D	12-30 VDC	N/A	N/A	Wall/Ceiling	Red	None	CH12/24
MA12/24DB	12-30 VDC	N/A	N/A	Wall/Ceiling	Beige	None	CH12/24W
MA/SS-12D	12-30 VDC	12 VDC	1[citation needed]	Wall	Red	FIRE	MASS12LO
MA/SS-24D	12-30 VDC	24 VDC	1	Wall	Red	FIRE	MASS24LO
MASS12LO	12-30 VDC	12-17 VDC	1.5	Wall	Red	FIRE	None
MASS12LOB	12-30 VDC	12-17 VDC	1.5	Wall	Beige	FIRE	None
MASS24LO	12-30 VDC	22.5-30 VDC	1.5	Wall	Red	FIRE	None
MASS24LOB	12-30 VDC	22.5-30 VDC	1.5	Wall	Beige	FIRE	None
MASS24LOC	12-30 VDC	22.5-30 VDC	1.5	Ceiling	Red	FIRE	None
MASS24LOLA	12-30 VDC	22.5-30 VDC	1.5	Wall	Red	FUEGO	None
MASS24M	12-30 VDC	22.5-30 VDC	15	Wall	Red	FIRE	MASS2415ADA
MASS24MB	12-30 VDC	22.5-30 VDC	15	Wall	Beige	FIRE	MASS2415ADAB
MASS24MC	12-30 VDC	22.5-30 VDC	15	Ceiling	Red	FIRE	None
MASS1215ADA	12-30 VDC	10.5-17 VDC	15	Wall	Red	FIRE	None
MASS1215ADAB	12-30 VDC	10.5-17 VDC	15	Wall	Beige	FIRE	None
MASS121575ADA	12-30 VDC	10.5-17 VDC	15/75	Wall	Red	FIRE	None
MASS121575ADAB	12-30 VDC	10.5-17 VDC	15/75	Wall	Beige	FIRE	None
MASS2415ADA	12-30 VDC	20-30 VDC	15	Wall	Red	FIRE	CH2415
MASS2415ADAB	12-30 VDC	20-30 VDC	15	Wall	Beige	FIRE	CH2415W
MASS241575ADA	12-30 VDC	20-30 VDC	15/75	Wall	Red	FIRE	CH241575
MASS241575ADAB	12-30 VDC	20-30 VDC	15/75	Wall	Beige	FIRE	CH241575W
MASS2475ADA	12-30 VDC	20-30 VDC	75	Wall	Red	FIRE	CH2475
MASS2475ADAB	12-30 VDC	20-30 VDC	75	Wall	Beige	FIRE	CH2475W
MASS24110ADA	12-30 VDC	20-30 VDC	110	Wall	Red	FIRE	CH24110
MASS24110ADAB	12-30 VDC	20-30 VDC	110	Wall	Beige	FIRE	CH24110W
MASS2415ADAS	12-30 VDC	20-30 VDC	15	Wall	Red	FIRE	CH2415
MASS241575ADAS	12-30 VDC	20-30 VDC	15/75	Wall	Red	FIRE	CH241575

MAEH series

Model Number	Sounder voltage	Strobe voltage	Candela	Mounting	Color	Lettering	Replaced By
MA12/24EH	12-30 VDC	N/A	N/A	Wall/Ceiling	Red	None	HC12/24 CH12/24
MAEH12LO	12-30 VDC	12-17 VDC	1.5	Wall	Red	FIRE	None
MAEH24LO	12-30 VDC	22.5-30 VDC	1.5	Wall	Red	FIRE	None
MAEH24LOC	12-30 VDC	22.5-30 VDC	1.5	Ceiling	Red	FIRE	None
MAEH24LOLA	12-30 VDC	22.5-30 VDC	1.5	Wall	Red	FUEGO	None
MAEH24M	12-30 VDC	22.5-30 VDC	15	Wall	Red	FIRE	MAEH2415ADA
MAEH24MC	12-30 VDC	22.5-30 VDC	15	Ceiling	Red	FIRE	PC2415
MAEH1215ADA	12-30 VDC	10.5-17 VDC	15	Wall	Red	FIRE	P1215
MAEH121575ADA	12-30 VDC	10.5-17 VDC	15/75	Wall	Red	FIRE	P121575
MAEH2415ADA	12-30 VDC	20-30 VDC	15	Wall	Red	FIRE	P2415 CH2415
MAEH241575ADA	12-30 VDC	20-30 VDC	15/75	Wall	Red	FIRE	P241575 CH241575
MAEH2475ADA	12-30 VDC	20-30 VDC	75	Wall	Red	FIRE	P2475 CH2475
MAEH24110ADA	12-30 VDC	20-30 VDC	110	Wall	Red	FIRE	P24110 CH24110
MAEH2415ADAS	12-30 VDC	20-30 VDC	15	Wall	Red	FIRE	P2415 CH2415
MAEH241575ADAS	12-30 VDC	20-30 VDC	15/75	Wall	Red	FIRE	P241575 CH241575