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InstAlert Variable Message Signs

InstAlert variable message signs are the fastest, easiest way to tell the public exactly what it needs to know. Available in four sizes— from the portable InstAlert 24 variable message sign that weighs 43 lbs. and folds in half to fit in your vehicle trunk— to the InstAlert 68 large format variable message sign— perfect for fast traffic areas.

TraffiCloud Ready

Remotely monitor and interact with InstAlert variable message signs using the TraffiCloud Web-Based Remote Management Service. Eliminate traffic data file management, easily update and sync messages in real time, generate and share reports over the Internet. Our enhanced and always-current user interface keeps you in contact with your equipment so you never have to travel to your variable message sign to change messages, check batteries or download data.

  • Message Versatility:
    Go beyond basic messages with this full-matrix sign that makes it easy to display multiple screens of text, graphics chevrons and custom images.
  • Simple, Universal Mounting:
    Mount InstAlert 24 variable message signs almost anywhere— post, pole, trailer or vehicle— in about a minute. An available padded case makes moving the signs even easier.
  • Durable Construction:
    The welded aluminum enclosure, concealed mounting hardware, shatterproof Lexan and graffiti-resistant powder-coat make these signs extremely rugged and durable.
  • Multiple Power Options:
    The unit accommodates almost any power source including the ATS PowerCase Portable Power Pack (InstAlert 24 only), solar, AC (InstAlert 24 only) or trailer to address a wide range of situations.
  • Flexible Scheduling:
    Program up to six different modes or speed limits for up to 13 time periods a day (InstAlert 48/68).


The InstAlert variable message sign is also available in an 18” unit. Contact us for additional information or a quote.



dragoneye                                                  InstAlert 68 Variable Speed Message Sign
                                  INSTALERT 24                                                                  INSTALERT 48                                                              INSTALERT 68



Connected, Full-featured Variable Message Signs

The InstAlert 24 variable message sign is the most portable MUTCD-compliant variable message sign available, making everyday portable use or permanent installation simpler than ever.  It’s TraffiCloud-ready so you can manage your sign from anywhere.

InstAlert 48 and InstAlert 68 variable message signs are also TraffiCloud-ready, making them the only large format variable message signs that connect into one integrated cloud-based system for simplified traffic management. Both large-format signs offer superior traffic visibility on high-speed roadways.

InstAlert Variable Message Signs Offer:

  • Conditional sensor messaging,  allowing different messages to be displayed based on live inputs, including road surface or air temperatures, timer values, vehicle weights, high winds, and available parking spaces
  • Like all our signs, InstAlert variable message signs can communicate with all your devices and sensors regardless of manufacturer
  • Enhance InstAlert with Time-to-Destination Technology using cloud-based communications in the form of live travel times for custom routes updated constantly on your sign anywhere, without the need for fixed sensor infrastructure
  • InstAlert 48 and InstAlert 68 are fully NTCIP-compatible for Intelligent Transportation Systems (ITS); InstAlert 24 is available with optional NTCIP compatibility


InstAlert Variable Message Sign Brochure

InstAlert Variable Message Sign Technical Spec Sheet

InstAlert 48/InstAlert 68 Message Sign Technical Spec Sheet

InstAlert Variable Message Signs

Control Interface

TraffiCloudTraffiCloudMore Info

TraffiCloud Features

  • Control equipment from any internet connected computer
  • Multiple users can be set up with permissions to control signs or just to access reports
  • Cloud-based, turnkey – no IT required. 
  • TraffiCloud Traffic Suite subscription includes Premier Care perpetual warranty
  • Contact us for information 
  • Learn more about TraffiCloud
ATS MobileATS Mobile More Info

ATS Mobile Features

  • Your Android device or ours
  • Many sizes available
  • Automatic upgrades
  • TraffiCloud Traffic Suite subscription includes Premier Care perpetual warranty
  • Traffic Data synced to server for free
PCPC More Info

PC Interface Features

  • Web based – you always have the most current version
  • Limited version of TraffiCloud (upgrade to TraffiCloud service anytime and collected data is available)
  • Use online or offline
  • Bluetooth or USB connection to the sign
On-BoardOn-Board More Info

On-Board Controls

  • Critical settings right on the unit
  • No extra device required in field
  • Intuitive control – easy to use
  • Tamper proof


Lithium (SA 18 only) Lithium More Info

Lithium Batteries

  • Compact with high energy density
  • Lithium Iron Phosphate technology – safe and up to 1000 recharge cycles
  • 10 Ah and 16 Ah versions available, units fit up to 2 (Shield 12 accepts 10 Ah only)
  • One connector fits Shield and charger
  • 3A automatic charger, 100-240VAC input
PowerCase PowerCase More Info

PowerCase PC36 / PC26

  • PC36: 36 Ah capacity, about 30 hours sign use (left in picture)
  • PC26: 26 Ah capacity, about 20 hours sign use (right in picture)
  • Built in 6Amp charger
  • PC36 includes inverter for on vehicle charging
  • Watertight, high visibility, high impact case
  • Receptacle for InstAlert or SpeedAlert plug built in
SolarSolar More Info

Solar Panel

  • 40 or 60W Panels – Let us size your panel
  • Solar controller to prevent overcharging battery
  • Adjustable mounting bracket and wiring included armored wire casing available
  • Uses sealed lead acid batteries (Solar charging Lithium batteries not recommended.)
  • IA18 or SA18 easily removable from solar enclosure to move to another location
  • Contact us for system sizing and installation tips
ACAC More Info

AC Power

  • 120 or 220VAC input; 6A 12VDC output
  • Waterproof enclosure
  • IA18 and SA18 easily removable from AC supply to move to another location
  • Surge suppressor installed
TrailerTrailer More Info

Trailer Power

  • Two battery capacity options – 235 Ah or 470 Ah
  • Flooded Deep Cycle batteries
  • Solar Options – 60W, 80W or 120W panel
  • Vented, locked cabinet, armored wire casing available
  • Built in potted 10A charger with AC input external to battery box


Pole Bracket –  SA18Pole Bracket More Info

SA18 Pole Bracket

  • One included with each SA18
  • Mount with carriage bolts, banding, lag bolts or U-bolts
  • Tamper resistant – bracket prevents access to hardware, controls and batteries
  • Easy mounting with push lock on SA 18
  • Purchase extra brackets and put one in each location to make moves even easier
Pole Bracket – IA/SA 24 Pole Bracket More Info

SpeedAlert 24/InstAlert or SpeedAlert 24

  • Batteries – 235 Ah or 470 Ah
  • Flooded Deep Cycle batteries
  • Solar Option – 60W, 80W or 120W panel
  • Vented, locked cabinet
  • Units can be removed from trailer and used with standard mounting brackets
Portable Pole Pole More Info

Portable Post

  • Easy to fold
  • Lightweight
  • Stable
  • Uses standard mounting bracket
Hitch Mount Hitch More Info

Hitch Mount

  • Fits 1 1/4″ or 2″ Receiver
  • Unit runs on internal batteries or vehicle
  • Secure – can be locked to vehicle
  • Mounts using standard pole bracket
  • Telescoping version available


Padded Carry Case 9SA18 Bag More Info

SpeedAlert Padded Carrying Case

  • Padded case protects SpeedAlert during transport
  • Pockets for accessories
  • Shoulder strap included