Silent Guardian

Speed Limit Trailer — SLT-2000

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5-year warranty guaranteed.

Size & Weight

Panel Size

36″ x 29″

Sign Height

7 Feet to bottom of sign

Matrix Size

7 x 12 pixels

Pixel Pitch

2.6″

Length (Transport Position)

159 in.

Length (Operating Position)

122 in.

Width Overall

75 in.

Height (Transport Position)

95″

Height (Operating Position)

181″

Weight

1,600 lbs approx. (max)

Ground Clearance

13″ minimum

Lifting Mechanism

1,000 lb. capacity winch and cable

Display

Speed Limit Sign

48″ w x 60″ h (122 cm x 152 cm)

Work Zone Sign

48″ w x 12″ h (122 cm x 30 cm)

Speed Numerals

Two digits – 18″ high, white LEDs

Beacon Lamps

Two 12″ circular amber LED lamps (these are optional)

Lamp Flash Rate

50-60 per minute

Power

Solar Array

160 watts

Batteries

Four (4) 6-volt heavy-duty, deep-cycle (GC-2)

Protection

Battery Security

Anti-theft steel battery frame bolted to trailer

Battery Upgrades

Four (4) maintenance-free (Gel Cell or AGM): 520 amp hour
Six (6) lead acid (flooded) or maintenance-free (Gel Cell or AGM): 780 amp hour
Eight (8) lead acid (flooded) or maintenance-free (Gel Cell or AGM): 1040 amp hour

Remote Communications Option

Remotely access and track your SLT-2000! Remote access, GPS tracking, and FREE lifetime cellular service.

Solar Array

160 watt
220 watt

Battery Charger

45 Amp output, 120 volt AC
55 Amp output, 120 volt AC

Security Option

Vandal-proof battery box with reinforced steel cage

When a changeable digital speed limit sign is required, the SLT-2000 fits the bill. This durable, portable Speed Limit Trailer can be towed to, and deployed in, a work zone or highway project. The user can dynamically change the work zone speed limit based on traffic volume or other changeable conditions.

What makes our radar & speed trailers different?

More Than Speed Feedback

From portable speed displays to queue detection and dynamic speed limit systems, SolarTech offers solutions for data collection, driver awareness, and active workzone management.

Unique Radar Speed Trailer

The SolarTech RST-V-2000 combines radar feedback and variable speed limit functionality on one trailer, reducing equipment needs while supporting advanced Smart Work Zone applications.

Remote Access for Changing Work Zones

Dynamic speed-limit and radar speed trailers support remotely updated limits and multi-function Smart Work Zone applications, giving teams the ability to adjust operations without returning to the field.