magnetic proximity sensor how it works

Bestseller No. 1
InduSKY 2pcs 8mm Inductive Proximity Sensor Detecting Distance Approach Sensor Cylinder Proximity Switch NPN NO DC 6-36V 300mA 3-Wire
  • 【High Quality】: Brass nickel-plated shell, not easy to rust and fade. With 115CM high-quality copper wire, strong and durable, and excellent electrical conductivity.
  • 【Sensitive Detection】: ABS material detection surface, the built-in intelligent sensing chip of the proximity switch can sensitively detect objects, when proximity switch is close to single target object, it will send control signal.
  • 【Strong anti-interference】:TVS tube protection, strong anti-interference ability. Non-contact output, and long service life.
  • 【Theory】: Output Type: NPN NO(Normal Open); Diameter of Head : 18mm;Detecting Distance: 8mm; Supply Voltage: DC 6-36V; Current Output : 200-300mA; Detect Object : Metal.
  • 【Application】: It is a component widely used in automatic control industry for detecting, controlling, and contactless switching. It is Widely used in mechanical automation, 3D printing limit positioning, paper making, light industry for limiting station, orientation taking count, speeding trial etc.
Bestseller No. 2
Twidec/10mm Hall Effect Proximity Sensor Inductive Switch NPN NO(Normally Open) with Magnet DC5-30V NJK-5002C
  • Model: NJK-5002C Supply voltage : 5-30VDC; Detection distance :10mm (effective detection distance 0-10mm) ;
  • Output : NPN three lines Output state normally open (NO)
  • Thread Diameter: 12MM ; thread length: 32MM;Load current :150MA (no more than)
  • Detect objects :metal material ;Product Material: Metal ;parts: Copper plastic components;PBT External leads:1.2 m (standard, others according to customer requirements) ;Output indication:LED (red);
  • Net Weight : 50g ;Package Content : 1 x Hall Effect Sensor
SaleBestseller No. 5
10PCs Magnetic Switch Set, Proximity Switch,Magnetic Approach Sensor,High Contact Resistance,for Proximity sensors,Liquid Level sensors,etc
  • Move fast, magnetic switch can be suitable for frequency products, durable.
  • With high contact resistance, magnetic sensor keeps corrosion and wear resistance, practical.
  • Long life and useful and stable switching operation, magnetic switch's quality is guaranteed, you can use it with confidence.
  • The control part of the seal in the housing is not affected by the external environment.
  • Made of PVC materials in high quality, magnetic switch is built to strict quality control standards for more durability.
Bestseller No. 6
CMS Magnetics Magnetic Pole Detector, a Handy Polarity Identifier to Know Magnet's North or South Poles, Great for School Teachers, Science Projects and Metal Detector
  • Ultra-low friction magnet holder means that this magnetic pole detector can detect magnetic fields from over a foot away
  • Easily detect and identify where the poles on a magnet are in order to safely handle them.
  • Great for educators - Teach kids what poles on a magnet are and how they interact with each other.
Bestseller No. 7
Litever 12-24VDC Door Open Switch Designed to Work with LED Lights Installed in Cabinets Counters Closets Wardrobes Automatic ON-Off LL-009-1 (2 Pack)
  • Automatic door open sensor swith for 12VDC/24VDC in-cabinet/closet LED lights. After correct DIY, when you open the door, this door-open-switch will turn on the LED lights automatically. When you close the door, this door-open-switch will turn off the LED light immediately.
  • It's NOT a IR motion sensor switch. ONLY designed to work in cabinets with doors ! Only Open/Close Door can make this door-open-sensor switch to work !
  • It's NOT compatible with any other PWM LED dimmer. If you have a PWM 12VDC/24VDC LED dimmer in your lighting kit, pls remove the dimmer and then use this door-open light switch.
  • This door sensor switch is workable with both 12VDC and 24VDC, which are the most common input voltage for most under cabinet LED lights.
  • Pls refer to the 4th picture on how to install this door-open-sensor switch.
SaleBestseller No. 8
Touchless Kitchen Faucet, ARRISEA Touch-on Activation Kitchen Sink Faucets with Pull Down Sprayer, Brushed Nickel Smart Bar Sink Faucets with Three Water Flow Modes Spray Head F15027
  • 【How to make the kitchen to be easier?--- Supporting TWO activating modes】: No longer using the switch handle with your messy hand, just touching anywhere (Not include: Sprayer) or closing the gooseneck on the kitchen tap with your hand or forearm to start and stop the flowing, near untouched cleaning design.
  • 【What about the sensor accuracy of the smart faucet?---0.5s reaction time & 3 inches sensing range】: Accurately sensing and starting the water, faucet automatically stops the water within 3 minutes when detecting no movement to save water or close it again to stopping the flow immediately.
  • 【Why does your faucet leak?---Rust did it】:Most of the faucet leaking has caused by internal rust. ARRISEA Bar Sink Faucets takes special ceramic valve, the stainless steel tube, and three NSF-certified water hoses to ensure that will not leak by internal rust within 10 years. Besides, ARRISEA kitchen tap has done the special treatment at every joint to keep its leakage.
  • 【Don’t fret the low flow!---Multifunctional Sprayer and strong mode for your choice】: If you get the low flow in your pipe, please increases the faucet’s flow rate by 60% by the strong mode. The smart kitchen faucet retractable 24” hose that provides great maneuverability to make your everyday chores easier.
  • 【Two step after-sale service---100% satisfied solution】: Whether it's human damage or equipment failure, as soon as the faucet stops working, you will get a new  brushed nickel faucet within three days by simply contacting customer service with a picture and the description of the problem.
Bestseller No. 9
YPLANG for iPhone 8 Screen Replacement, LCD Display 3D Touch Screen Digitizer Full Assembly with Proximity Sensor, Ear Speaker and Front Camera (iPhone 8 White FBM)
  • 【GREAT REPLACEMENT】USE to replace faulty, defective, cracked, dead iPhone 8 display screen full assembly. This iPhone 8 screen replacement kit includes everything you need to successfully fix the phone.
  • 【PERFECTT PACKAGE】:Pre-installed LCD screen, installation manual, 3 x Magnetic screwdrivers, crowbar, wiper, suction cup, screen protector, SIM card opener and plastic triangle opening tool. Screens and tools are packed in protective bag and are not easily damaged or crushed.
  • 【QUALITY SATISFACTION】:All iPhone 8 screen pass strict technical tests before shipping to avoid happening of the black screen, ghost touch, stripe lines before shipping. 3 months warranty for non-human factors. If there is a problem, please find your order and contact us at any time, we will solve it for you as soon as possible.
  • COMPATIBILITY】Only fit for iPhone 8 LCD screen replacement Black (A1863, A1905, A1906). Not compatible for 8 Plus 5.5 inch. You can check on the backside of your phone, please do not confuse it with other version.
  • 【EASY INSTALLATION】: All our customers receive an email covering YouTube links on how to install, and everyone can do it easily. You can watch YouTube video to install the new screen.YPLANG screen replacement for iPhone 8 with 3 prongs is Proximity Sensor,Front Facing Camera,Earpiece Speaker.Our replacement screen will reduce the risk when you replace small parts from your old screen. (NO home button,you need to transfer from your old phone.
Bestseller No. 10
DIYmall 10pcs/Pack IR Infrared Obstacle Avoidance Sensor for Arduino Smart Car Robot IR Transmitting and Receiving Tube Photoelectric Switch
  • Interface:1,1. VCC voltage is 3.3V to 5V converter (which can be directly connected to 5V single-chip microcontroller and 3.3V)
  • 2. GND external GND
  • 3. OUT of small plate digital output interface (0 and 1)
  • Package Included: 10 X IR Infrared Obstacle Avoidance Sensor

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