Federal Signal’s model MS Series Sounders and Powered Loudspeakers are designed for rugged industrial applications where CE certification is required. The MS Series is comprised of two separate products that serve a variety of applications. First is a sounder that includes fifteen standard tones with a common power input that accepts an AC or DC power source. Once power is applied, a single tone may be selected through the use of a remote contact input, or all fifteen tones may be accessed independently by providing a binary string of information, specific to each tone. This allows a certain sound to match a specific alarm condition.
The second version of the MS Series is a powered loudspeaker. Once an AC or DC power source is applied, the powered loudspeaker is capable of amplifying a low-level audio signal, and reproducing it at 8, 15 or 25 watts, depending on the model selected. MS Series Powered Loudspeakers are the perfect option for ECHO Intercom systems, where CE approval is required. 
Mounting is provided by a stainless-steel ratcheted mounting bracket that locks the sounder in position at a specific angle without slipping. The bottom surface of the mounting bracket also contains three mounting holes, to adapt to a variety of surfaces.
The MS Series is rated for IP66/67 through the use of a neoprene “O" ring seal. All exterior cast aluminum surfaces are finished in gray powder coat paint and external hardware is manufactured from stainless steel to resist corrosion.


Voltage 24VDC, 110/120VAC, 220/240VAC
Factory Default Setting 240VAC
8/15–watt dual entry, 25–watt dual entry
Aluminum alloy LM6 (marine grade)
Color Signal red 537 to BS381C (epoxy powder coated semi-gloss)
Mount Stainless steel bracket (not painted)
Output, 8W Short Horn Series IIB 104dBa @ 1m (1Khz)1
Output, 15W Series IIB 107dBa @ 1m (1Khz)
Output, 15W Series IIC 103dBa @ 1m (1Khz)
Cable Entries (bottom) 2 x M20 (supplied with 1 x EEx stopping plug)
-20ºC to +70ºC (T4)7.900
Depth For 1.5mm (25W) conductors8.500
Ingress Protection, 8W/15W IP67
Ingress Protection (IP) IP66/67
Net Weight 8W - 3.2kg6.60 lb
Net Weight 15W - 4.1kg7.10 lb
25W - 6.4kg6.40 lb
Shipping Dimension 15W- 25 x 23 x 28cm
25W - 32 x 30 x 37cm

Ordering Information

Model Types
Model Description UPC
MS1-112-14 Powered loudspeaker, 15 watt, 24VDC, 110/120VAC, 220/240VAC 782979219651
MS1-112-1MT Sounder, 15 watt, 24VDC, 120VAC, 240VAC, 2 x M20 entries 782979219644
MS1-114-14 Powered loudspeaker, 8 watt, 24VDC, 110/120VAC, 220/240VAC 782979219675
MS1-114-1MT Sounder, 8 watt, 24VDC, 120VAC, 240VAC, 2 x M20 entries 782979219668
MS4-120-1MT Sounder, 25 watt, 24VDC, 120VAC, 240VAC, 2 x M20 entries 782979219682
MS5-120-13EB Powered loudspeaker, 25 watt, 24VDC 782979219699
MS5-120-13EL Powered loudspeaker, 25 watt, 110/120VAC 782979219705
MS5-120-13EM Powered loudspeaker, 25 watt, 220/240VAC 782979219712