Seen IRIS 860 sensors on a wheeled loader

Seen’s unique IRIS technology uses an infrared laser to detect reflective tape on high-visibility safety vests and markers.



The IRIS 860 sensor is designed to detect reflective tape on high-vis safety equipment up to 8 metres away. It can be mounted on forklifts and other heavy mobile plant and gives an audible alert to both the pedestrian and the driver. A significant advantage of IRIS 860 over most other industrial pedestrian detection systems is that it does not require ground-personnel to carry an electronic tag or change their behaviour.

IRIS (“Infrared Retroreflector Identification System”) is a Seen Safety’s patented technology to detect reflective material. The IRIS 860 continuously emits pulses of non-visible laser into the targeted blind-spot. The driver and pedestrian receive an audible alert when someone is detected.

Detection range and field-of-view

Each IRIS 860 sensor features a 60 x 45 degree field-of-view and can be set to detect anywhere up to 8 metres. Multiple sensors can be used together to expand the coverage area if desired. Each sensor creates a detection zone which is 60 degrees wide by 45 degrees high. Depending on the application, the detection start and cut-off distance can be configured to lie anywhere within the 1.2 to 8 metre detection range.

When wired to the reverse signal, rear-facing Seen sensors will only alert when the vehicle is in reverse gear, and conversely forward facing sensors will only alert when the vehicle is not is reverse gear. This targeted detection ensures the operator only receives timely and relevant warnings.


IRIS 860 sensors provide reliable detection in all weather conditions, including rain, complete darkness, and intense glare from the sun on wet pavement.

Standard Class II safety vests typically have a total of about 6m of 2″/50mm reflective tape on them. The IRIS 860 sensor requires approximately 20cm of reflective tape within its field of view to enable detection. This ensures reliable detection can be achieved even when the person is in a sub-optimal orientation, such as side-on or crouched down, and if their vest is in less than perfect condition.

Safety and compliance

IRIS 860 sensors comply with relevant US and EU standards including Class-I 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. Operating temperature range form -20C to +60C.

Cab box

Because an operator inside an enclosed cab mightn’t hear the alert coming from an external sensor, the cab box gives the driver an audible alert when a sensor is activated. Up to 4 sensors can be connected to each cab box.

Camera integration

IRIS 860 sensors feature an M12 auxiliary-out port which carries the detection signal. This can be used to connect a variety of peripherals such as an extra alert signal, or a video camera to record detection events as they take place.

Seen IRIS 860 infrared LIDAR sensor with stainless mounting bracket and weather shield
High visibility safety vest with reflective tape
Multiple IRIS 860 sensors can be mounted behind a forklift to cover the blindspot area. Each sensor has a 60 degree field of view
Seen's cab box connects to IRIS 860 sensors and give the driver an audible alert

Cab box for enclosed cab machines

IMPORTANT. Seen IRIS 860 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 4, 69 Kaiwharawhara Rd
Wellington 6035, New Zealand
Phone +64 4 381 4475