Fire/EMS 4200S/8200S SignalMaster™

Fire/EMS 4200S/8200S SignalMaster™

  • LED directional warning light
  • Lengths offered in 31-, 42-, or 51-inch
  • Stick light models available in (6) and (8) light head versions; Arrow light models available in (10) or (16) light head versions
  • 4200S SignalMaster models have (4) LEDs per light head; 8200S SignalMaster models have (8) LEDs per light head
  • 18-inch whip with water-tight connector
  • Aluminum housing with rail design
  • (14) flash patterns
  • Discrete cable or serial controller options
  • Low-power mode
  • 12 Vdc
  • Three-year warranty

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Performance to Keep You Safe 
The 4200S/8200S SignalMaster™ is a high-intensity warning system designed to direct traffic approaching from the rear of a stationary vehicle. Equipped with (4) or (8) LEDs per light head, the 4200S/8200S SignalMaster delivers an impressive optical performance suitable for several vehicle applications. These LED directional warning lights are available in (6) and (8) light head version. The arrow-style lights are available with an additional (2) or (4) light head arrows, for a total of (10) or (16) light heads. The 8200S SignalMaster also offers a 10-head split version.

Versatility For the Job
The full-feature 4200S/8200S SignalMaster comes programmed with (14) eye-catching flash patterns along with left, right, and center-out directional warnings. In addition, the rail design allows users to mount with one of our existing SignalMaster brackets.

The 4200S/8200S SignalMaster has an 18-inch whip with a water-tight connector that is compatible with either our discrete cable or serial 8-button controller. The discrete cables are available in 15-ft or 30-ft lengths. The serial 8-button controller includes a 20-ft cable. In addition, the serial controller offers (2) low-current auxiliary outputs. Optional extension cables are available for both discrete and serial in 15-ft and 30-ft lengths.


Operating Voltage 12 Vdc
Current Draw 0.5 A per head
Operating Temp. –40˚ to +176˚F (–40˚ to +80˚C)
Flash Patterns 14


SignalMaster Models  
Physical Specifications 4200SM6-A 4200SM8-A-42 4200SM8-A-51
Length 32.8 in (12.9 cm) 44.0 in (111.8 cm) 53.0 in (134.6 cm)
Width 2.0 in (5.1 cm)  2.0 in (5.1 cm) 2.0 in (5.11 cm)
Height 1.4 in (3.6 cm) 1.4 in (3.6 cm) 1.4 in (3.6 cm)
Ship Weight  
  5.0 lb (2.3 kg) 7.0 lb (3.2 kg) 8.0 lb (3.6 kg)
Physical Specifications 8200SM6-A 8200SM8-A-42 8200M8-A-51
Length 32.9 in (83.3 cm) 43.9 in (111.5 cm) 52.9 in (134.4 cm)
Width 1.9 in (4.8 cm) 1.9 in (4.8 cm) 1.9 in (4.8 cm)
Height 2.3 in (5.8 cm) 2.3 in (5.8 cm) 2.3 in (5.8 cm)
Ship Weight  
  5.0 lb (2.3 kg) 7.0 lb (3.2 kg) 7.5 lb (3.4 kg)


SignalMaster Arrow Models  
Physical Specifications 4200SMA10-A 4200SMA16-A  
Length 33.1 in (84.1 cm) 53.0 in (134.6 cm)  
Width 2.2 in (5.6 cm) 2.2 in (5.6 cm)  
Height 10.1 in (25.7 cm) 18.5 in (47.0 cm)  
Ship Weight  
  10.0 lb (4.5 kg) 13.0 lb (5.9 kg)  
Physical Specifications 8200SMA16-A 8200SMA10-A 8200SMA10-A-2
Length 16.6 in (42.2 cm) per side 33.1 in (84.1 cm) 53.1 in (134.9 cm)
Width 2.3 in (5.8 cm) 2.3 in (5.8 cm) 2.11 in (5.4 cm)
Height 11.9 in (30.2 cm) 11.9 in (30.2 cm) 20.2 in (51.3 cm)
Ship Weight      
  13.5 lb (6.1 kg) 13.5 lb (6.1 kg) 18.0 lb (8.2 kg)

Ordering Info

Model Types
4200SM6-A6-head, Amber, 31-inch
4200SM8-A-428-head, Amber, 42-inch
4200SM8-A-518-head, Amber, 51-inch
8200SM6-A6-head, Amber, 31-inch
8200SM8-A-428-head, Amber, 42-inch
8200SM8-A-518-head, Amber, 51-inch
4200SM10-A10-head (2-head arrow, 6-head stick), Amber, 31-inch
4200SM16-A16-head (4-head arrow, 8-head stick), Amber, 51-inch
8200SMA10-A10-head (2-head arrow, 6-head stick), Amber, 31-inch
8200SMA10-A-210-head split ((2) 20-inch 2-head arrow, 3-head stick), Amber
8200SMA16-A16-head (4-head arrow, 8-head stick), Amber, 51-inch
SMCABLE-15Discrete cable, 15-ft
SMCABLE-30Discrete cable, 30-ft
SMCONTROLEight-button serial controller with 20-ft cable
SMEXTENSION-15Extension cable, 15-ft, for use with SMCONTROL
SMEXTENSION-30Extension cable, 30-ft, for use with SMCONTROL
SW200-BFour-switch box with bail bracket, for use with SMCABLE
SW300-BSix-switch box with bail bracket, for use with SMCABLE
SW400SS-BFour-switch with slide switch box with bail bracket, for use with SMCABLE