
VAKR is a passive multi-modal sensor system that detects, tracks, and classifies aerial threats with nodes that emit no signal.
VAKR, Stendr's first product, is a passive multi-modal sensor system that works as a networked mesh of low-cost nodes to detect, track, and classify aerial threats, and it keeps providing defenders with reliable information even when individual radars are taken down. Its nodes emit nothing and read the already-present radio signals in the air.
Centralised, high-value air defence systems represent single points of failure in air defence.


Omnidirectional and directional radio-frequency sensors that detect, locate, and classify unauthorized drones.


Passive radio-frequency sensor detecting, classifying, and locating unauthorized drones and their pilots.


Fixed-site counter-UAS architecture combining RF sensing with layered defeat effectors under unified command-and-control.
Omnidirectional and directional radio-frequency sensors that detect, locate, and classify unauthorized drones.

Passive radio-frequency sensor detecting, classifying, and locating unauthorized drones and their pilots.

Fixed-site counter-UAS architecture combining RF sensing with layered defeat effectors under unified command-and-control.



Radio-frequency counter-drone system detecting, locating, and disrupting drone and pilot control links.



Medium-range Ku-band 4D ESA radar for counter-UAS, force protection, and infrastructure security.


Dart Counter-UAS is a counter-drone system pairing radar with interceptors against small unmanned threats.


AURION is Earendil Robotics' networked battlefield-awareness system that puts every operator on the same picture.
Radio-frequency counter-drone system detecting, locating, and disrupting drone and pilot control links.

Short-range low-SWaP FMCW 4D radar for perimeter, portable, and counter-drone surveillance.

Medium-range Ku-band 4D ESA radar for counter-UAS, force protection, and infrastructure security.

Dart Counter-UAS is a counter-drone system pairing radar with interceptors against small unmanned threats.

AURION is Earendil Robotics' networked battlefield-awareness system that puts every operator on the same picture.
