VB4-MST Mobile Security Trailer

Solar-powered, cloud-managed video security you tow to the site, set up in minutes, and run without power, trenching, or a network drop. This guide covers setting the trailer up, running it, packing it up, and keeping it healthy.

The VB4-MST deployed: outriggers down, solar panels out, mast raised with the camera head at the top — The VB4-MST deployed: outriggers down, panels out, mast up.

What is on board

Four 450 W solar (PV) panels on slide-out racks, with an MPPT charge controller. PV stands for photovoltaic, the technical name for solar panels; you will see it on the breaker labels.
Gel lead-acid battery bank at 24 V: eight sealed 12 V 200 Ah batteries wired for 24 V, 19.2 kWh nominal.
A locked, ventilated equipment cabinet holding the breakers, the battery monitor, the system controller with its touch display, the inverter, and the network switch.
A telescoping mast with the camera head, the cellular gateway, optional speaker, and optional strobes at the top.
A 120 V outlet on the cabinet fed by an onboard inverter, and a shore-power input for charging from any standard outlet.
Onboard generator for automatic top-ups through long overcast stretches.
Verkada cameras on Verkada Command, online through the cellular gateway at the top of the mast.

How to use this guide

Read Before you deploy once. Then follow Set up on site and Raise the mast in order every time the trailer moves. Lower and pack up is the reverse, and it matters just as much: a mast that is towed up, or panels left out, will damage the trailer.

Watch the video

A six-minute narrated walkthrough, from choosing the spot to packing up.

Before you deploy

Choosing the spot, checking the trailer, and towing it safely.

Set up on site

Position, chock, level on the outriggers, slide the panels out, and power up.

Raise the mast

Pre-checks, the crank, and the locking pin.

Power system

Solar (PV), gel batteries, breakers, the touch display, the outlet, and charging from shore power.

Generator

First start, automatic mode, manual mode, and the maintenance schedule for the onboard generator.

Cameras and Command

What is on the mast, how it connects, and where to manage it.

Lower and pack up

Bring the mast down, retract the panels, shut down, hitch, and go.

Maintenance and safety

The decals, the hazards they mark, routine inspections, and who does what.

Specs, warranty, and support

VB4-MST specifications, what the warranty covers, and how to reach us.

Need help?

Contact VanBelkum Support or call (616) 301-7676. For anything electrical inside the cabinet, stop and call us; the cabinet carries voltages that can injure.