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Tethered drone system
Aerial surveillance from a tethered drone
Khronos lifts a day and night camera to 60 m in under two minutes and keeps it there for 24 hours. Power and data run through the tether: no battery swaps, no radio link to jam.
- 24 h continuous flight
- Airborne in under 2 minutes
- Follow-me up to 30 km/h
- Day and night, thermal
Elistair tethered drones operate in 70+ countries.
Where persistent aerial surveillance earns its place
Four situations where a tethered drone has to stay up for hours.
Sensitive and industrial sites
Blind spots behind buildings and stacks, watched from above around the clock.
Sees over buildings from 60 m
Borders and long perimeters
A fence line or a coastline too long to equip. Khronos rides on the patrol vehicle and keeps watching while it moves.
Follow-me up to 30 km/h
Events and crowds
A picture that changes hour by hour, where nothing can be installed in advance.
Up in under 2 minutes
Tactical communications
A radio relay held at 60 m extends your team’s network over terrain that blocks the signal on the ground.
Radio relay payload
Real Khronos footage
What your operators see at night
Thermal feed recorded by Khronos over rough terrain: two people on foot, tracked in the dark.
- 10 kmperson detection by day
- 4.5 kmperson detection at night, thermal
- 1.3 kmperson recognition at night
- 6 kmvehicle detection at night
Raptor payload, NDAA compliant. Detection, recognition and identification tables for both payloads are in the brochure.
How a tethered drone works
From closed box to aerial watch in under 2 minutes
The drone stays connected to its box by a cable that carries power up and video down. It can hold its position for as long as the operation lasts, and with the video in the cable there is no radio link to jam.
00:00
Box closed
On a vehicle, a trailer or the ground. One operator starts the sequence.
Under 2 min
Automated climb
The operator starts an automated takeoff. The tether unwinds as the drone climbs.
Up to 24 h
On watch at 60 m
Power comes from the ground, so the camera stays up with no battery to swap.
The system
Khronos, a complete tethered DroneBox
Drone, tether, box and ISR payload delivered as one system. No separate pilot, no battery logistics.
- Airborne in 2 minAutomated takeoff and landing from the box
- 24 h operationsPower through the tether, no battery swaps
- 60 m / 197 ftElevated viewpoint over a 10 km radius
- Follow meDrone stays overhead while the vehicle moves
- Vehicle or fixedIntegrates on a patrol vehicle or a fixed platform
- Day and nightObject tracking and categorization, EO and thermal
- Live sharingVideo streamed to the command post and your team
- IP54Keeps flying in rain and wind
In service
Trusted where the watch cannot stop
Police forces, armed forces and security operators rely on Elistair tethered drones to hold continuous overwatch, from festival crowds of 80,000 people to border exercises.
Khronos · national police
Khronos · on an unmanned ground vehicle
Industrial port · day and night
Get the Khronos brochure
Everything you need to assess Khronos for your surveillance project.
- Full specifications and operating limits
- Detection, recognition and identification ranges, day and night
- Payload options: Raptor, DragonEye, dual payload
- Follow-me and vehicle integration
- ITAR freeNo US export licence needed
- NDAA compliant payloadRaptor EO/IR sensor
Download the brochure
Takes one minute. An engineer can follow up if you have a project.
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