Durable, directional warning solutions
Ideal for rear traffic warning, the MicroPulse® SignalMaster™ provides directional signals, (left arrow, right arrow, center out) and flashing warning patterns. When a directional signal is selected, the lamps are individually illuminated in a sequential sweeping motion until all lamps are illuminated. In addition, the brake module and backup camera options in selected models, operate independently from the control module and are located at the center of the MicroPulse SignalMaster.
The MicroPulse lens is made of UV resistant polycarbonate to protect against harsh conditions. Certified to meet IP67, MicroPulse perimeter lights have a fully encapsulated waterproof housing that provides a barrier against dust, moisture, and water. Additionally, the MicroPulse SignalMaster’s extruded housing is specially designed to help block sunlight and glare that adversely affects warning performance and effectiveness.

Easy serviceability

The MicroPulse SignalMaster was designed with ease of serviceability in mind. If you need to replace a light head, simply remove the screws on each end of the light and disconnect the wire harness connector from the assembly. Using the new light head, reconnect the wire harness to the cable assembly and secure the two screws.

Different applications call for different controllers

The full-featured SignalMaster controllers, sold-separately, operate with a low-power mode to reduce amp draw for nighttime operation and fast mode that increases the “build” speed of the warning pattern. Both the standard controller and the full-featured controller provide left, right, center-out and flashing directional warning patterns.


Voltage 11-13 VDC
Amp Draw 1.5 A per head
Operating Temperature Range -40° F (-40° C) to 176° F (80° C)
Physical Dim. (LxDxH) 23 - 23 in (58.4 cm) / 42" - 42 in (106.7 cm) / 51" - 51 in (129.5 cm) X 3.4 in (8.6 cm) X 2.6 in (6.6 cm)
Ship Weigth
MPSSM23-A-30 4.0 lbs (1.9 kg)
MPSSM23-A-30 6.8 lbs (3.1 kg)
MPSSM42-A-30 6.8 lbs (3.1 kg)
MPSSM42-BRK-30 7.3 lbs (3.4 kg)
MPSSM42-CAM-30 7.6 lbs (3.5 kg)
MPSSM51-A-30 10.2 lbs (4.7 kg)
MPSSM51-BRK-30 10.6 lbs (4.9 kg)

Ordering Information

Model Types
Model Description
MPPSSM23-A-30 23" MicroPulse SignalMaster, (4) Amber heads, 30-ft cable (A-A-A-A)
MPSSM42-A-30 42" MicroPulse SignalMaster, (6) Amber heads, 30-ft cable (A-A-A-A-A-A)
MPSSM51-A-30 51" MicroPulse SignalMaster, (8) Amber heads, 30-ft cable (A-A-A-A-A-A-A-A)
MPSSM51-BRK-30 51" MicroPulse SignalMaster, (8) Amber heads and (1) Red brake light (center), 30-ft cable (A-A-A-A-BRAKE-A-A-A-A)
MPSSM42-BRK-30 42" MicroPulse SignalMaster, (6) Amber heads and (1) Red brake light (center), 30-ft cable (A-A-A-BRAKE-A-A-A)
MPSSM42-CAM-30 42"MicroPulse SignalMaster, (6) amber heads and (1) camera (center), 30-ft cable (A-A-A-CAMERA-A-A-A)
330104-SB Controller, Six or eight-lamp, 12 or 24V (multiple installer-selectable flash patterns, fuse protected)
331105-SB Controller, Heavy Duty six or eight-lamp, 12 or 24V (slide switch, multiple installer-selectable flash patterns, heavy duty ground, fuse protected, controls two SignalMasters simultaneously)
MPSSM36-BRK-50 36", MicroPulse SignalMaster, (6) Amber heads and (1) Red brake light (center), 50-ft cable
Product # Description
320310 Bracket kit, flush mount system
320320 Bracket kit, light bar or rear deck mount bracket
320330 Bracket kit, system mount
320340 Bracket kit, Universal mount
320350 Bracket kit, foot adapter