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Entrance Control

Sensors and Safety Devices

Safety and activation sensors that stop gates, barriers and automatic doors before they close on a person or vehicle, or open them on approach. The sensing method decides the job: light barriers and photocells guard a line across the opening, safety edges and mats detect contact, inductive loop detectors sense vehicles in the lane, and radar or infrared sensors watch a zone at the door. Then compare supply voltage, output type, IP rating and the standard each device is tested to.

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How to choose a gate or barrier safety sensor

Each sensing method covers a different gap, and busy sites often combine two.

  • Photocells: a transmitter and receiver create a beam across the gate path. Breaking the beam stops or reverses the motor. Match the photocell to your control board; BlueBUS photocells connect over Nice's two-wire bus to compatible Nice control units.
  • Loop detectors: a wire loop cut into the road senses the metal of a vehicle above it, holding a boom open while a car is underneath. The loop must be laid during civil work.
  • Radar sensors: a barrier radar senses vehicles in its zone without cutting the road surface, which suits finished driveways.
  • Coverage: decide whether you need to detect people, two-wheelers or only cars, and how many sensors each lane needs.

These devices protect the motors in boom barriers and gate automation.

Need help choosing?

Tell us what it is for and where it goes, and we suggest models. Have a list of models and quantities? Request a quote.