Now in our 24th year . . .
    Flashing ALERT Sign System



. . . for use on surface streets and roads, where motorists travel at non-highway speeds.


Wireless, Solar-Powered, Remote-Controlled with Embedded Flashing Amber LED Beacons

Flashing ALERT Sign Systems are designed primarily for use by communities, military and industry on surface streets and roads where motorists travel at non-highway speeds. (The flashing LED beacons pictured may be integrated into larger sign panels to garner greater attention or for highway-speed applications.) Ultra-visible from more than 1000 feet even in the daytime, Flashing ALERT Signs grab motorists' attention with embedded flashing LED beacons. Use Flashing ALERT Signs in conjunction with ALERT AM Emergency Advisory Radio Stations or conventional Information Stations to signal that urgent messages are being broadcast. 

These solar-powered Flashing ALERT Signs may be installed anywhere, without respect to the presence of electrical power services. The result: high flexibility, low cost to install. 

Trigger the beacons on Flashing ALERT Signs via control tones sent through your community's existing VHF or UHF radio system. The signs are sized to be perfect for surface streets and roads where motorists travel non-highway speeds. Bright, amber LEDs command immediate attention. When the beacons are off, the blue and white portions of the signs remind motorists of the radio signal's presence 24 hours a day, 365 days a year. 

Flashing ALERT Signs store enough flash-power to run 4 to 10 days even with no sun. With as little as 1.5 average sun hours per day, each sign's backup battery system remains fully charged around the clock. 

Place the Flashing ALERT Signs on your busiest thoroughfare, one facing each traffic direction. Then place another pair on 2 busy streets that intersect the thoroughfare. Up to 4 Flashing ALERT Signs may be connected to each Remote Control Power Unit via wire line.

Flashing ALERT Sign Systems may be custom-designed for your application, with varying power and control methods, sign text, colors and mounting styles. Flashing ALERT Signs may also be used independently from Emergency Advisory Radio, to announce evacuation and detour routes and emergency actions to take when the beacons are activated.

Flashing ALERT sign LED flash patterns and sign colors are compliant with the Department of Transportation/Federal Highway Administration Manual on Uniform Traffic Control Devices (2004, Regulation 2A.08). Check with street department and highway authorities to coordinate compliance with local/state regulations governing signs in your area.

Technical Specifications

Sign Panel


bullet Typical size: 44” high by 24” wide, customizable (price relates to size).

Composition: natural aluminum, standard 1/16” gauge reflective black/ yellow/blue sheeting; customizable black/white, 2” and 3” high lettering.


Mount: universal L-bracket for banding, bolting to existing poles or posts.

Sign Electrical

bullet LED beacons: 2, amber, weatherproof LED beacons; 41 diodes each; 4.25” diameter embedded reflectors.
bullet Current draw: 100 milliamps.
bullet Flash controller: 8A, 50/60 fpm, waterproof.
bullet Duty cycle: 50% flash.
bullet Operation time: 2-4 day flash via solar power without sunlight.

Remote Control & Power Unit


bullet Size: 20” high x 16" wide x 10" deep.
bullet Construction: NEMA4X, natural aluminum, single-hinge door, hasp-lock-in closure; weatherproof external antenna connector, wiring, ports.
bullet Mounts: external tabs for universal mounting to existing poles or posts.


bullet Solar panel: 32-watt, 1.95-amp at 12-volt DC.
bullet Solar panel mount: side-of-pole, band or bolt-on.
bullet Solar controller: 6-amp current capacity, LED charge indications. Low voltage disconnect circuitry.
bullet Battery: 55AH, AGM, sealed type.


bullet Capacity: up to 4 flashing signs.
bullet Control wiring: #10 AWG, each a maximum of 2500’ from the controller.
bullet Receive frequencies/ranges: 33-50 MHz (VHF low), 150-170 MHz (VHF high) and 450-470 MHz (UHF).
bullet Control codes: up to 6 simultaneous codes.
bullet Code formats: DTMF (up to 12 digits); 2-tone sequential, single-tone 0.3-3.0 kHz.

Programming output: SPDT relay with programmable timer; laptop programming via RS232 port and Windows-based software.


Indicators: “ALERT received” LED indicator.

bullet Speaker: 4” integral.
bullet Test diagnostics: built in with LED indicators.
bullet External antenna: 50-ohm BNC connector.


$2,290 for 1 Remote Control Power Unit with 1 sign. Add up to 3 signs per RCPU @ $395 per sign.

Important:  Remote Control Power Units (RCPU) send power to Flashing Signs by means of control wires installed between them.  See the below diagram.
flashing street signs & controller


This page was last updated: April 17, 2007.

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