Federal Signal’s corrosion resistant loudspeaker, Model P-LS70, is designed for use in industrial public address and general alarm applications, where corrosion resistance is required. Model P-LS70 loudspeaker is certified IP66 for ingress of dust and strong water jets.
The P-LS70 loudspeaker is manufactured from corrosion resistant, anti-static glass-reinforced polyester (GRP), and is designed to accept an audio input of 70 Vrms. Each speaker is transformer coupled with a maximum power output of 25 watts and is supplied with 10 preset taps (25, 20, 15, 10, 5, 2, 1.5, 1, 0.5 and 0.2 watts) to adjust sound output.
Mounting is provided by a “common template” stainless-steel ratcheted mounting bracket that locks the sounder in position at a specific angle without slipping. The bottom surface of the standard mounting bracket contains three slotted mounting holes.
Connection for field wiring is provided by two M20 x 1.5 mm threaded openings in the bottom of the rear cover and terminated via internal terminal blocks. All external hardware is manufactured from stainless steel to resist corrosion and provide serviceability for years to come.


Operating Temperature Minimum -58 °F
Operating Temperature Maximum 158 °F
Cable Terminations: 0.5 – 4 mm2 (12-22 AWG) Conductors
Diameter 9.150 in
Height 11.270 in
Length 12.550 in
Material Glass-Reinforced Polyester (GRP)
Audio Input 70 Vrms
Audio Output 125dB @ 25 watts (1 meter)
Frequency Response 350 – 5kHz
Net Weight 13 lb
Shipping Weight 15.30 lb


Product Literature

Ordering Information

Model Types
Model Description UPC
P-LS70 Loudspeaker, corrosion resistant, 25Watt, 70Vrms 782979230267
Replacement Parts
Description Part Number UPC
Bracket, Mounting, P-LS2B K8595171A 782979127260
Cover, Rear K8595153A 782979127253