The SC-2
How Stredar Works
The Stredar SC-2 is a compact, covert speed monitoring unit. It mounts on a single pole, blends into the roadside, and silently logs every vehicle that passes — uploading anonymised speed data to the national platform automatically via 4G.
Silent Monitoring
Continuous Data. Zero Intrusion.
There is no sign, no display, and nothing to signal to drivers that data is being collected. The SC-2 records an uninfluenced baseline — the kind of honest evidence that councils and highway authorities actually act on.
What drivers see
NOTHING
Small box · single pole · no markings
The unit is a small weatherproof enclosure on an existing pole. No signs, no lights, no warning that speeds are being recorded. Drivers behave naturally.
What the platform records
Every vehicle pass is logged with its speed, direction, and a GPS-tagged timestamp. No vehicle data — no images, no plates, no identity.
Why this matters
Real data beats resident petitions
Local authorities regularly reject speed concerns as anecdotal. Months of continuous, GPS-tagged speed data from an independent device gives parish councils and residents associations the hard evidence needed to trigger a formal speed survey, a Traffic Regulation Order, or roadside engineering.
The Radar
How Speed is Measured
An OmniPreSense OPS243-A Doppler radar module transmits a continuous 24 GHz signal. When a vehicle passes, the reflected signal shifts in frequency — the Doppler effect. The module calculates speed directly from that frequency shift.
There is no camera. No image is captured. The radar returns only a speed value and a direction — approaching or receding. Nothing in the data can identify a vehicle, a driver, or a registration plate.
Detection range is up to 100 metres, allowing the unit to capture speeds accurately before vehicles reach the monitoring point.
The Data
From Radar to National Platform
01
Vehicle passes
The radar detects the vehicle and calculates its speed and direction of travel.
02
Reading is logged
Speed, direction, and a GPS-tagged timestamp are recorded. No vehicle data is retained.
03
Upload to platform
Readings are automatically uploaded via 4G to the Stredar platform.
04
Publicly visible
Anonymised data appears on the national map. Anyone can see speed trends for any active site.
SC-2
Technical Specification
The Unit
SC-2 on a Pole
A compact weatherproof enclosure mounts directly to any standard street furniture pole. The power supply is separate and out of sight. The unit itself contains only the radar module, 4G modem, and GPS receiver — no tripod, no visible cabling.
Pole-mounted
Attaches to any standard street furniture — lamp post, sign post, or dedicated stake. No groundworks.
Compact
Radar module, 4G modem, and GPS receiver in a single weatherproof enclosure. Power is supplied separately and out of sight — the unit itself is small and unobtrusive.
Discreet by design
No warning signs, no illuminated panels. The unit is intentionally unobtrusive so collected data reflects normal behaviour.
IP66 weatherproof
Sealed to IP66 — rain, dust, and road spray proof. No maintenance visits required between deployments.
Important
Not an Enforcement Camera
Stredar is a speed monitoring device — a community data tool. It captures no images, stores no vehicle identifiers, and has no connection to police enforcement systems or the DVLA.
Because Stredar does not produce evidence for enforcement purposes, it does not require Home Office Type Approval. Communities can deploy it without the legal and regulatory burden associated with speed cameras.
The anonymised speed statistics it collects can be used as community-gathered evidence when making representations to local authorities about road safety improvements.
Ready?