Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971

Central Locking with Remote Keys and Reed Switches

Reed switches in door sensors
Central Locking

Central locking systems provide convenient control over the locking and unlocking of all doors in an automobile, offering enhanced security and ease of access. This functionality is facilitated by a sophisticated system that integrates electronic key technology with reed sensors for seamless operation.

The central locking system relies on a secure coded radio frequency signal transmitted from an electronic key, which has been previously paired with the vehicle’s microprocessor. When the key code is authenticated by the onboard computer, a signal is relayed to the central locking system, enabling simultaneous locking or unlocking of all doors.

While remote key fobs primarily control the central locking system, reed switches play a vital role in facilitating manual door opening. These sensors are strategically mounted on the doors, while magnets are positioned beneath the door handles. When a door handle is lifted, the movement is detected by the reed switch, which promptly sends a signal to the computer to initiate door opening.

In addition to their role in central locking, reed switches also offer added security benefits by serving as intrusion detection devices. When a door is opened in an unlocked condition, the reed sensor detects the unauthorized entry and triggers the vehicle’s alarm system, alerting the owner to the potential security breach.

The utilization of reed switches in central locking systems underscores their versatility and reliability in automotive applications. They provide a robust solution for door control and security, enhancing the overall functionality and safety of modern vehicles. By seamlessly integrating electronic key technology with reed switch technology, automotive manufacturers deliver advanced central locking systems that prioritize convenience, security, and peace of mind for vehicle owners.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Magnet Biasing Type

Reed switches in seat belt locking system Normally Closed type Vane application Some special field applications, for the sake of circuit logic, security concerns, or a power Continue reading ->

Jun 18, 2024

The Reed Switches and Sensors used in such remote access applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

R2 Standard size SMD Reed Sensor

Standard Size Reed Sensor R2-S Gull-wing SMD Formed Reed SensorR2-S Gull-wing SMD Formed Reed Sensor Pad LayoutR2-F Low Profile SMD Formed Reed SensorR2-F Low Continue reading ->

May 22, 2024

MS-105 Miniature PCB Mountable Reed Sensor

Miniature pcb mountable Drawing of MS-105 Reed SensorDrawing of MS-105 PCB Pad Layout starFeatures10W Contact Rating. 12.7 mm PCB Pitch. Normally Open Continue reading ->

Oct 30, 2020

MS-106 Reduced Miniature PCB Mountable Reed Sensor

Reduced miniature pcb reed sensor Drawing of MS-106 Reed SensorDrawing of MS-106 Reed Sensor Pad Layout starFeatures10W Contact Rating. 15.2 mm PCB Pitch. Normally Continue reading ->

May 22, 2024

MS-108 Standard Size PCB Mountable Reed Sensor

Standard size pcb mountable reed sensor Drawing of MS-108 Reed SensorDrawing of MS-108 Reed Sensor Pad Layout starFeatures10W Contact Rating. 20.3 mm PCB Pitch. Normally Continue reading ->

Oct 30, 2020