Warning and Traffic Clearing LED Light Built For First Responders
CN SignalMaster™ provides advanced warning and directional lights specifically for first responders. Built with Federal Signal’s exclusive Solaris® LED reflector design for superior light intensity, the CN SignalMaster is available in 4-, 8-, and split 8-head models. All models are suitable for interior and exterior installation.
Split 8-head models are synchronized to operate as one unit. These models are ideal for mounting externally on a Dodge Sprinter, Chevrolet G-Van, or Ford Transit and can also be mounted on popular police vehicles.
Eye-Catching Patterns In a Variety of Colors
The CN SignalMaster can quickly be changed from a warning light to a directional light with Federal Signal’s Spectralux® technology. SpectraLux multicolor LED technology allows for a single LED source to change while in motion. CN SignalMaster is available in color combinations of Amber, Blue, Red, or White.
White LED options can be used as takedowns, work lights, or act as an impressive floodlight. Rear-facing models have a built-in SignalMaster to act as a directional light for oncoming traffic.
Simple Installation and Programming
CN SignalMaster models are equipped with the FS Convergence Network for simple ‘plug-n-play’ installation and programming. Utilizing standard RJ45 connections, the CN SignalMaster can easily be programmed with Federal Signal’s SmartSiren® Platinum and Pathfinder® Siren/Light controller. 
A serial interface module with your existing light controller can also be used to program and operate the features and functions of the CN SignalMaster. 
CN SignalMasters are programmed with (27) built-in flash patterns and can remain in sync with other light head flash patterns or operate independently. 


Approvals SAE J845, Class 1 (R, B, A, W)
SAE J595, Class 1 (R, B, A, W)
Voltage 12.8 Vdc
Amp Draw 4-Head - 4 amps
8-Head - 8 amps
Operating Temperature Range -22˚ to +149˚ F (-30˚ to +65˚ C)
Dim. (H x L x W) 4-Head - 1.7 in (4.3 cm) x 15.7 in (39.9 cm) x 3.3 in (8.4 cm)
8-Head - 1.7 in (4.3 cm) x 31.2 in (79.5 cm) x 3.3 in (8.4 cm)
Ship Weight 4-Head - 2.0 lbs (0.9 kg)
8-Head - 4.0 lbs (1.8 kg)



CN SignalMaster 4-Head Flash Patterns (1:30)
CN SignalMaster 8-Head Flash Patterns

Ordering Information

Model Types
Model Description
CNSM-RBK1 Mounting kit for installing CN SignalMaster in 2013-2022 Ford Police Interceptor Utility, internal use only
CNSM-UM Universal mount for installing CN SignalMaster, internal/external use
CNSM-TAH21 Kit to mount CNSM4 models to grille of 2021 Chevrolet Tahoe
SLB-SIL19ND 8-head bracket for CN SignalMaster or Latitude, no drill, Chevrolet Silverado 2019-2021