Seen’s IRIS60/8 sensor uses an infrared laser to detect the reflective strip found on high-visibility safety vests and markers.


IRIS60/8 is a mounted on mobile plant and detects the retro-reflective strip on standard day/night (Class II and III) high-vis apparel. The major advantage of IRIS60/8 over most other industrial pedestrian detection systems is that it does not require ground-personnel to carry an electronic tag, or change their behaviour in any way.

IRIS (“Infrared Retroreflector Identification System”) is a patented technology developed by Seen Safety. The IRIS60/8 continuously emits pulses of non-visible laser into targeted blind-spots around the machine. The driver receives an audible alert if someone is detected in the blind-spot.

Detection range and field-of-view

IRIS60/8 has been optimised to detect ground personnel working near mobile plant. It features a 60 x 45 degree detection area and an 8 metre detection range.

Multiple sensors can be used to expand coverage area as desired. For example 3 sensors can be used to provide full 180 degree coverage behind a vehicle. Depending on the application requirements, the detection start and cut-off distance can be configured to lie anywhere within the 1 to 8 metre detection range.

Sensor activation can be tied to the vehicle’s reverse signal, so a rear-facing sensor will only alert when the vehicle is in reverse gear. This helps avoid unnecessary, nuisance alerts.


IRIS60/8 provides reliable detection performance under all lighting conditions, from complete darkness to intense glare from the sun on wet pavement.

Standard Class II safety vests typically have a total of about 3000cm2 (465in2) of reflective strip applied to them. The IRIS60/8 sensor requires a minimum of approximately 75cm2 (11.6in2) of reflective material within its field of view. This ensures reliable detection can be achieved, even when the person is in a sub-optimal orientation, such as side-on or crouched down, or if their vest is no longer in pristine condition.

Safety and compliance

The IRIS60/8 complies with relevant US and EU standards including Class-IM laser eye safety, CE, EMC, REACH, ROHS.

The sensor has no moving parts and can withstand the shock and vibration associated with heavy machinery. The chemical resistant IP67 rated enclosure ensures weather resistance for year round indoor or outdoor operation.

In-cab control box

Because an operator inside an enclosed cab (like a wheeled loader) mightn’t hear the alert coming from an external sensor, the in-cab control box gives the driver a loud audible alert when a sensor is activated. Up to 4 sensors can be connected.

Camera integration

IRIS60/8 sensors feature an M12 auxiliary port which can be used to attach to a video camera to record detection events as they take place. Automatically triggered by a detection, the video camera saves a 30 second segment of footage around the event for later analysis. This feature offers heath and safety managers a unique opportunity to capture and review close calls that would otherwise go unreported. UNDER DEVELOPMENT

IMPORTANT. Seen IRIS60/8 sensors can provide additional information to the operator but are not intended to provide active safety functions or control the machine. Seen sensors do not replace the need for proper operator training and best practice safe operating procedure. The operator must always look to check the way is clear before moving the vehicle. Detection can never be guaranteed.
Unit 35, 68-74 Kingsford Smith Street
Wellington 6022, New Zealand
Phone +64 4 381 4475
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