Guide · 3 min read
Motion sensors, presence sensors and safety beams on automatic sliding doors, explained simply.
By Zenitrix Technologies team · Updated · 3 min read
A sensor above the door detects movement as someone approaches and tells the controller to open. Settings control how wide the detection zone is and how long the door stays open.
Presence sensors and safety beams stop the door from closing on a person or an object. They are checked regularly as part of servicing.
Doors should open by hand or by battery in a power cut. Ask how this works for your building and keep exit routes clear.
A survey checks the opening, frame, floor level, header space and power. The operator is fitted to the header or frame, sensors are aligned, speeds and hold-open time are set, and staff are shown the mode switch and manual release.
A door operator drives the leaf along a track or on a hinge. A sensor detects approach, the controller sets opening width, speed and hold-open time, and safety sensors prevent the leaf from closing on a person or object.
A sensor above the door detects motion or presence and signals the operator. Some doors also use push buttons, access cards or remote triggers.
Many operators have a manual release or battery option so the door can be opened by hand or kept working briefly. Confirm what the chosen model offers.
Yes. Good sealing, correct sensor settings and sensible opening width reduce air loss. Airlock arrangements can help at busy entrances.
Sometimes. The frame, weight and type of door decide whether it can be retrofitted or whether a new automatic door is the better route.
Yes. We visit, measure and send a written quote. Call or WhatsApp +91 85006 32002 to book a visit.
Yes. We repair and service gates, doors, barriers and shutters from any brand, and offer AMC plans.
Written by the Zenitrix Technologies team. Last updated 2026-10-02.
