Fotokite Sigma: The Best Actively Tethered Drone for Public Safety and Emergency Response
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At AlphaGeo, we specialise in advanced drone solutions that empower professionals with reliable aerial intelligence. One of our flagship offerings is the Fotokite Sigma, a cutting-edge actively tethered drone system built specifically for public safety, defence, and emergency response.
Unlike conventional drones or other tethered drone platforms, the Fotokite Sigma combines autonomy, durability, and unlimited flight time in one fully integrated solution. If your mission requires real-time aerial awareness, this is the drone system that stands apart.
1. Fully Autonomous Tethered Drone – No Pilot Required
The Fotokite Sigma is a hands-off, actively tethered drone that can be launched, repositioned, and retrieved with the push of a button. There’s no piloting or flight training required, making it the ideal tool for firefighters, law enforcement, and emergency responders who need quick, reliable deployment. In the uk, the A2 CofC (Certificate of Competency) is a UK CAA-accredited drone training course to fly small drones 'close to people' in the Open Category. Who Is The A2 CofC For? The A2 CofC can be used by drone pilots flying commercially and recreationally.
2. Superior Stability with a 6-Motor Design
Unlike standard quadcopters, the Fotokite Sigma uses a 6-motor layout for added redundancy. Even if one motor fails, the system remains stable in flight. For public safety agencies, that level of reliability means fewer risks and more confidence in mission-critical scenarios.
3. Unlimited Flight Time – A True Game-Changer
Traditional drones are limited by short battery lives. The Fotokite Sigma actively tethered drone eliminates this issue with battery-free operation, drawing 100% of its power through the tether. The result is continuous, unlimited flight time—perfect for long-duration operations such as crowd monitoring, search and rescue, or incident response.
4. Trusted and Field-Proven Worldwide
With over 600 systems deployed globally, the Fotokite Sigma is the most widely used tethered drone for public safety. Its proven reliability gives agencies confidence that they’re investing in a platform backed by real-world performance, not just technical claims.
5. All-Weather, Mission-Ready Performance
Rated IP55, the Fotokite Sigma can withstand rain, snow, dust, and challenging weather conditions. While many drones are limited by environmental factors, Sigma delivers uninterrupted aerial support when it’s needed most.
6. Integrated Imaging and Secure Livestreaming
Out of the box, the Fotokite Sigma includes:
- HD RGB video for clear visuals
- Radiometric thermal imaging for heat detection
- Optical zoom for detailed observation
- Secure LTE livestreaming for real-time situational awareness
Unlike other systems, there’s no need for add-ons or third-party cameras—everything is fully integrated into one mission-ready package.
7. Lightweight and Easy to Deploy
Weighing just 43 lbs in its transport case, the Fotokite Sigma is the lightest fully integrated tethered drone in its class. Competing systems often exceed 55–100 lbs, making Sigma far easier to transport, mount, and deploy—even by a single operator.
8. Energy Efficient for Long Missions
With a low 300–700W power draw, the Sigma operates from compact power sources such as vehicle inverters or portable batteries. This makes it more energy-efficient than other tethered drones, extending mission duration while reducing resource requirements.
Why Buy the Fotokite Sigma from AlphaGeo?
When it comes to public safety drones and emergency response drones, the Fotokite Sigma is unmatched. Its autonomy, unlimited flight time, weather resistance, and proven track record make it the best choice for businesses that demand reliability in the field.
Available in two configurations -
1. Rooftop box or in a transport case, find out which one suits your needs on our Fotokite Sigma product page.
At AlphaGeo, we believe in offering the very best commercial and public service drone technology, direct to the end user, with mission-ready aerial solutions that give your team the advantage when it matters most.
Ready to equip your agency with the world’s most advanced tethered drone? Contact Us AlphaGeo today to learn how the Fotokite Sigma can transform your operations.
