Mobile Surveillance Units
Solar-powered camera towers and trailers with live operators behind them — deployed where you have no cameras, no power or no guard, with voice-down warnings and patrol response.
Solar and battery power — no hookups.
Alerts verified by a person, not an email.
Intruders warned in real time.
Our units or police dispatched.
Quick answer
A mobile surveillance unit is a trailer- or tower-mounted camera system, usually solar powered with its own batteries and cellular connection, placed on a site without permanent cameras or power. Safeguard On Demand puts trained operators behind each unit: alerts are verified on live video, intruders are warned through the tower loudspeaker, and if they stay, a patrol officer or police are dispatched.
The problem
Construction sites, open lots and vacant properties need protection but have no power, no network and no budget for a guard every night.
Temporary sites cannot run wired camera systems.
Large open sites would need several guards to cover every angle.
Unmonitored cameras only show what was taken.
Deployment options
Units, monitoring and response.
Our standards
Monitoring is only as good as the response.
When to voice-down, dispatch and call police — in writing.
Operators who verify, document and escalate.
Time-stamped incident records with video.
Power and camera health monitored.
Before you rent
Here is how we answer.
| Ask the vendor | Safeguard On Demand |
|---|---|
| Who watches the cameras? | Trained operators review alerts and live video. |
| What happens when someone is detected? | A voice-down warning, then patrol or police dispatch if they stay. |
| Do units need power or internet? | No — solar, battery and cellular. |
| How fast can a unit be deployed? | Typically within days, depending on availability and site access. |
| Will I get video of incidents? | Yes — incident records with clips for police and insurers. |
| Is there a long-term contract? | No long-term contract. |

Where units work best
Open, temporary or hard-to-staff sites.
Statewide
Served from the office nearest your site, with officers across 13 California counties.
How it works
From site walk to live monitoring.
01
Coverage areas, sightlines and access.
02
Tower locations and camera angles.
03
Unit placed, connected and alerts tested.
04
Live monitoring, voice-down and dispatch.
Choosing coverage
A mobile surveillance unit is the most cost-effective way to watch large, open or temporary sites overnight. A standing guard is better where someone must check people and deliveries; many sites use a guard during the day and towers at night.
For sites with existing cameras, remote video monitoring can use your system instead. Towers pair well with mobile patrol for response and fire watch on construction sites.
California considerations
California Penal Code §632 prohibits recording confidential conversations without the consent of all parties, so our towers use audio for live voice-down warnings rather than recording private conversations, and cameras are aimed at areas with no expectation of privacy. Posted signage is recommended.
Where officers respond on site, they must hold BSIS Guard Cards and work for a licensed private patrol operator. Verify any company or officer on the state’s DCA License Search.
Budgeting
Priced to units and monitoring.
One tower or several.
Overnight, weekends or 24/7.
Weeks or months.
Including on-site response.
Site access and placement.
Distance from our offices.
A solar-powered camera tower or trailer with its own batteries and cellular link, placed on sites without permanent cameras or power.
Yes. Operators verify alerts on live video, issue voice-down warnings and dispatch patrol or police.
No — they run on solar and battery power.
From short-term deployments to months-long projects.
Yes — they are one of the most cost-effective ways to protect open job sites overnight.
Across 13 California counties from offices in Santa Ana, Los Angeles (Northridge), San Diego, the Inland Empire, Sacramento and Silicon Valley.