Model SLM500 is a multifunctional LED beacon and sounder combination developed with a multiple input technology that allows three separate levels of alarm (alert, pre-alarm, alarm) controllable via independent electric contacts.
Channel 1 includes a simulated strobe (triple flash) visual signal only. Channel 2 adds an audible tone, selectable from 32 tones via DIP switch, to the simulated strobe effect. Channel 3 includes a steady light and a second, unique tone selectable from 32 different toness, for a total of  64 unique tones.
The volume of a selected tone is adjustable (65-105 dBa) for the highest performing tone. Its enclosure is made from a self-extinguishing polycarbonate material with high impact and UV resistance.



Lamp Life 50,000 Hours
Light Source/Lamp Style LED Array
Operating Temperature Minimum -22 °F
Operating Temperature Maximum 122 °F
Weight (unit(s) + base = total weight)
SLM500 7.76 oz. / 0.22 kg


StreamLine® Dock Light Base Video (1:02)
The StreamLine Modular Series by Federal Signal

Ordering Information

Model Types
Model Description UPC
SLM500A Streamline modular audible/visual signal, amber 782979232124
SLM500B Streamline modular audible/visual signal, blue 782979232131
SLM500C Streamline modular audible/visual signal, clear 782979232148
SLM500G Streamline modular audible/visual signal, green 782979232155
SLM500R Streamline modular audible/visual signal, red 782979232162
SLMBS-012-024GY Streamline modular base shallow, 12-24VAC/VDC, gray 782979232292
SLMBS-012-024R StreamLine Shallow Base, 12-24VDC, Red 782979248705
SLMBD-012-024GY Streamline modular base deep, 12-24VAC/VDC, gray 782979232308
SLMBD-PNP-012-024GY StreamLine modular base, deep, PNP, 12-24VAC/DC, gray 782979233343
SLMBD-012-024R Streamline modular base deep, 12-24VAC/VDC, red 782979231998
SLMBD-120-240R Streamline modular base deep, 120-240VAC, red 782979232001
SLMBW-012-024GY Streamline modular base wall, 12-24VAC/VDC, gray 782979232322
SLMBW-PNP-012-024GY StreamLine modular base wall, PNP, 12-24VAC/DC, gray 782979233350
SLMBW-120-240GY Streamline modular base wall, 120-240VAC, gray 782979232339
SLMBT-012-024GY Streamline modular base twin, 12-24VAC/VDC, gray 782979232346
SLMBT-PNP-012-024GY StreamLine modular base twin, PNP, 12-24VAC/DC, gray 782979233367
SLMBT-120-240GY Streamline modular base twin, 120-240VAC, gray 782979232353
SLMBP-012-024GY StreamLine modular base pipe, 12-24VAC/DC, gray 782979233312
SLMBP-PNP-012-024GY StreamLine modular base pipe, PNP, 12-24VAC/DC, gray 782979233329
SLMBP-120-240GY StreamLine modular base, pipe, 120-240VAC, gray 782979233336
SLMB2-024GY StreamLine dock base, 2 stack, 24VAC/DC, gray 782979247098
SLMB2-120-240GY StreamLine dock base, 2 stack, 120-240VAC, gray 782979247104
SLMB3-024GY StreamLine dock base, 3 stack, 24VAC/DC, gray 782979247074
SLMB3-120-240GY StreamLine dock base, 3 stack, 120-240VAC, gray 782979247081
Product # Description UPC
SLMDG2 Streamline modular dome guard, medium 782979232025
SLMB23N Dock Base, ½” NPT Adaptor 782979247128
SLMB23W Dock Base, Wall Mount 782979247111
SLM-RR StreamLine modular retaining ring 782979236580
Replacement Parts
Description Part Number UPC
Dock Base, Visor/Shield SLMB23V 782979247135