
Security issues don’t pause. Coverage shouldn’t either.
Defensor Robotics, a division of On Time Security, provides autonomous on-site security coverage that responds in real time to activity at your property. We deploy security systems that maintain visible presence, detect activity as it occurs, and initiate immediate audio and visual deterrence, 24/7/365.
Available across all 50 states and Puerto Rico.
Powered by Robotic Assistance Devices (RAD) technology.

Autonomous security adds a persistent layer of protection that works continuously at the site level.
When deployed, systems can:
• Maintain visible security presence
• Detect and respond to activity in real time
• Initiate audio and visual deterrence
• Capture and document events automatically
Coverage can operate independently or alongside existing security resources.


Autonomous security is used to strengthen coverage in the places and time windows where consistent on-site presence matters most, including:
• Commercial and industrial properties
• Construction and temporary sites
• Outdoor yards, parking areas, and perimeters
• Interior and controlled-access spaces
• Sites with variable staffing or coverage needs
Deployments are tailored to the property and how it operates.


We’ll review your needs and map out what autonomous coverage could look like for your site in a short virtual consult.
