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
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Reed Switches

Electronics and Communication


In the modern electronics world, the reed switch finds applications in almost every equipment and supports the growth in electronics today, which is influenced by constraints like compactness, low power consumption, and functional reliability. A few reed switch and reed sensor applications in the field of electronics and communication are listed below. We have also suggested few of our products for use in each application, but this does not mean that the other products in the same product category will be unsuitable. Click here to  download this page as a PDF.

 

Reed switches in Barcode Scanners

Reed switches in Barcode Scanners

A reed switch and magnet combination is used in the docks and barcode scanners, and whenever a scanner is removed from a dock to conduct a manual scan, the signal from the reed switch is used to ensure that the belt does not index. Continue reading

Reed sensor in Contact protection

Reed sensor in Contact protection

Most reed switch and reed sensor based products require contact protection when used with loads where there is a chance of inrush current. More details about contact circuits are available here. A reed sensor with a built-in resistor… Continue reading

 

Magent sensors in Satellite dish position sensing

Magent sensors in Satellite dish position sensing

While tuning motorized dishes, the dish motor is turned until a clear signal is received and a reed sensor is locked there. Different channels are beamed from different satellites and reed sensors are used to remember the positions… Continue reading

Reed sensors in weather proof electronic equipment

Reed sensors in weather proof electronic equipment

In weather proof walkmans, cellular phones, and CD players, conventional switches cannot be used because they are not water proof or dirt and dust proof. Hermetically sealed reed sensors are the ideal solution as they can be mounted inside the equipment… Continue reading

 

Reed sensors in Cellular phone, Notebook computer and PC desktops

Reed sensors in Cellular phone, Notebook computer and PC desktops

In mobile devices with doors to protect the keypads, the power to the display or central processing unit (CPU) can conveniently be switched on or off, just by opening or closing the doors… Continue reading

Reed switches and Reed sensors in On/off switch in Microphones and Radio transmitters

Reed switches and Reed sensors in On/off switch in Microphones and Radio transmitters

In microphones and radio transmitters, unnecessary signal transients and speaker crackle can be avoided at the time of switching on or off, by using a reed sensor based on/off switch. The reed sensor is mounted on a small PCB inside the microphone… Continue reading

 

Reed sensors in Telephone hook switches and Hands-free Kits

Reed sensors in Telephone hook switches and Hands-free Kits

Modern telephone circuitry loads can easily be switched by reed sensors. Conventional hook switches which are used in telephones undergo millions of operations and fail easily. When a reed sensor is used in the place of a hook switch, it can survive millions of operations… Continue reading

Reed switches, Reed sensors and Magnet sensors in Automatic dentist's drill activation

Reed switches, Reed sensors and Magnet sensors in Automatic dentist’s drill activation

A reed sensor finds application in the tiny tip of a dentist’s drill to work as a pressure sensor, which starts or stops the drilling. Only when the drill is pressed against a hard surface, like teeth, which in turn moves the spring loaded magnet closer to the reed sensor…. Continue reading

 

Magnet sensors in Winding count and tension sensing and in Coil Winders

Magnet sensors in Winding count and tension sensing and in Coil Winders

Reed Sensors find an important role in closed loop tension control systems like coil winders, tape and reel machines etc. The wire, which is to be wound, is usually taken through a spring, which gives cushioning when winding on bobbins, which are not circular. A reed sensor mounted near this spring… Continue reading

Reed switches in Relays in Modems and Fax Machines

Reed switches in Relays in Modems and Fax Machines

Ultra miniature relays are manufactured by winding coils around reed switches and can be used to switch high loads with very low input voltages. Reed relays are extensively used in a number of… Continue reading

 

Reed switches and Reed sensors in Open door sensing in Copiers and Scanners

Reed switches and Reed sensors in Open door sensing in Copiers and Scanners

In copiers and flatbed scanners, reed sensors are used to signal the main processor if the top door is left open. This prevents wastage of toner in copiers and helps build a closed loop system which can automatically start the scanning or copying cycle when the door is closed… Continue reading

Reed switches and Reed sensors in Pacemakers and Defibrillators

Reed switches and Reed sensors in Pacemakers and Defibrillators

Tachycardia and Bradycardia are problems in which the heart beats at a rate faster or slower than the normal human heart rate. Fibrillation is the uncontrolled beating of different parts of the heart. People with such heart problems need pacemakers or defibrillators… Continue reading

 

Reed switches and Reed sensors in Vagus Nerve Stimulators

Reed switches and Reed sensors in Vagus Nerve Stimulators

The Vagus nerve in the neck is one of the primary communication lines to the brain. Vagus Nerve stimulators are implantable devices which control the stimulation of impulses to the brain. When a patient senses a seizure coming, a magnet is used over… Continue reading

Reed switches and Reed sensors in Spirometers

Reed switches and Reed sensors in Spirometers

Lung function tests (or pulmonary function tests, PFT) evaluate how much air a person’s lungs can hold, how quickly he or she can move air in and out of the lungs, and how well the lungs add oxygen to the blood and remove carbon dioxide from the blood… Continue reading

 

Magnet sensors in Electricity and Fluid Metering

Magnet sensors in Electricity and Fluid Metering

In water meters, gas meters, and electricity meters, a reed sensor can be used to count the number of turns in the dial, and with minimum logic circuits, can give digital read outs. For such applications, specially designed reed switches with high spring back forces… Continue reading