InstAlert Variable Message Sign

InstAlert variable message signs are the fastest, easiest way to tell the public exactly what it needs to know. Lightweight and sturdy, the portable InstAlert 24 variable message sign goes wherever you need it and is the only VMS that folds in half to fit in your vehicle trunk!

InstAlert variable message signs are web-enabled and TraffiCloud-ready. Program your InstAlert from any Internet-connected device using the TraffiCloud web-based Remote Management Service. No more driving to each message sign to change messages. Easily change and sync messages in real time, confirm each sign’s location and get alerts for tampering and low batteries.

  • Message Versatility:
    Full-matrix sign 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, solar, AC or ATS 5 Trailer to address a wide range of situations.
  • Flexible Scheduling:
    Schedule up to 50 different messages or modes for up to 13 different time periods in a 24-hour day.
  • Change Sign Messages Simultaneously:
    Update one or all of your sign messages in real time with just a few clicks.

The InstAlert variable message sign is also available in a smaller version. Contact us for information or a quote.


InstAlert Variable Message Signs Offer:

•    Conditional sensor messaging, allows you to display different messages based on live inputs including road surface or air temperatures, timer values, vehicle weights, water levels and available parking spaces

•    InstAlert variable message signs can communicate with all your devices and sensors regardless of manufacturer

•    Using ATS Time-to-Destination Technology you can share live travel times for custom routes updated continuously on your sign, without the need for fixed sensor infrastructure

•    InstAlert 24 is available with optional NTCIP compatibility

Portable, Web-enabled Variable Message Signs

        •    Most portable MUTCD-compliant variable message sign available

        •    Portable use or simple permanent installation

        •    TraffiCloud-ready so you can manage your sign from anywhere

        •    Perfect for emergency management teams, work zones directing drivers to available parking


InstAlert Variable Message Sign Specification Sheet

InstAlert Variable Message Sign

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