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Fork Alert System from Amskan

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article image Fork Alert System

The Fork Alert System, from Amskan , provides an activation of a warning device that a Forklift is within a specified area. The system uses an invisible infrared transmission from the forklift which is detected by a remotely placed receiver.

The receiver has a wide filed of vision and detects the forklift from 2 metres to 15mm. The footprint of the receive range is adjustable to suit the requirements.

  • Only triggers by forklift fitted with transmitter
  • Are covered can be tailored in both distance and spectrum
  • Only works when the forklift is operational
  • Long range
  • Once set does change
  • Transmitter beacons have to be mounted to every vehicle
Motion Detectors
Motion Detectors use a Photo Electric Beams to detect passing vehicles (of any sort) and trigger off an alarm. They can be programmed to detect the direction of the vehicle also.


  • Does not need a specific device to be fitted to vehicle
  • Once set does change

  • Must have wall or infrastructure to mount to
  • One Forklift (leaving) may block the beams while another forklift approaches
  • Cannot detect forklift approaching from different angles
Motion Detectors using PIR’s

Motion Detectors using a Passive
Infrared Detector (PIR) to detect passing vehicles (of any sort) and trigger off an alarm


  • Does not need a specific device to be fitted to vehicle

  • Not specific. Movement of any kind triggers off the PIR (ie. People, Forklifts, etc)
  • Range can be indeterminate
  • In ground inductive loops
  • In ground inductive loops detect the presence of vehicle
  • Does not need a specific device to be fitted to vehicle
  • Once set does change
  • Cons
  • Limited Distance from doorway
  • Any large metallic body may activate it
  • Cannot detect forklift approaching from different angles
  • Ground needs to be cut for lying of loop.
  • Not relocatable
While there are economical reasons for choosing any of the four technologies, there are obvious downfalls with some of them which ultimately will prive to be false economy.

Fork Alert is readily adaptable to many if not all scenarios. A key aspect to the operation of the Fork Alert system is that it warns a pedestrian or other forklift driver that a forklift is out of sight in a danger zone.

The only real downfall of the Fork Alert system is that every vehicle you wish to detect needs to be fitted with a transmitter (Beacon). With a large fleet, that may add up to a large capitol investment initially.

Once the fleet is fitted however the system can be utilised in many areas without major investment, and can even be used as an effective long range door opener.

Additionally the cost of the transmitters can be incorporated into the cost of the lease of the Forklifts. The Fork Alert system is also easily relocatable should the premises change layout or operation, as is often the case of a growing organisation.

PE Beams to activate the warning system are probably the next option in that they can be set up to also detect the directionality of the forklift.

The major advantage of PE Beams is that you can detect any vehicle, including cars and trucks without having to fit a Transmitter to them.

The major downfall of PE beams is that you need a structure to mount the beams on and if the forklift approaches the danger area from the fact that because they have to be at the forklift height to work they are a target for physical damage.

Unfortunately many premises show the marks of forklifts hitting bollards, walls, racking etc, so the PE sensors themselves would quite possible be struck on occasion. They also are only effective when aligned properly. When there are multiple forklift operating within an area the PE beam has trouble distinguishing which vehicle it is detecting.

PIR Sensors provide a means of detecting forklift, however also are triggered by just about any other movement. So while they are a less expensive option to Fork Alert and PE beams they are not a reliable method and likely to provide many false alarms.

In Ground Loops while reliable in detecting Vehicles also are limiting in the area they can cover. They do not provide multi angle approach to doorways and provide no adjustment in detection range or angle.

There is also the need to cut up the floor area that they are to be installed in and as the building layout changes they are not relocatable.

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