Fast delivery
Discount conditions for companies
Up to 10% discount for pupils, students and educational institutions
Europe wide shipping for 4,90€
KY-021 - Magnetic reed module, reed switch
Image similar

KY-021 - Magnetic reed module, reed switch

€1.59 *
Content: 1 Piece

incl. VAT plus shipping costs

Delivery time: appr. 1-3 days

  • F23106789
  • 0,00 kg
  • 1.8 cm x 1.5 cm x 0.2 cm (L x W x H)
Secure and fast payment with
Amazon PayKlarnaCredit cardPayPalInvoiceSofort.Prepayment
The KY-021 module consists of a breakout board with a reed switch. The switch remains on until... more

The KY-021 module consists of a breakout board with a reed switch. The switch remains on until it comes into contact with a magnetic field. The module offers a reliable switching function for various applications.

Overview:

  • Operating voltage: 3.3-5 V
  • Resistance: 10 kΩ
  • Pins: VCC, ground, signal
  • Output: digital
  • PCB dimensions: approx. 18 x 14.5 mm

Possible applications:

  • Door and window sensors
  • Magnetic detection systems
  • Robot technology
  • Security and alarm systems
  • DIY smart home applications

Scope of delivery

  • 1x KY-021 - Magnetic reed module, reed switch
Further links to "KY-021 - Magnetic reed module, reed switch"
Read, write and discuss reviews... more
Customer reviews for "KY-021 - Magnetic reed module, reed switch"
Write rating
Reviews will be activated after verification.
Please enter the string in the text field below.

The fields marked with * are required.

Cap for micro push-buttons - compatible with "Type-B" push-buttons" Cap for micro push-buttons - compatible with...
Content 1 Piece
€0.30 *
Item no: F23106741
Add
Pressure switch, black - 3-9V, LED illuminated Pressure switch, black - 3-9V, LED illuminated
Content 1 Piece
€4.33 *
Item no: F23108871
Add
3-pin rocker switch - 1-pole on/off switch, KCD1-105 3-pin rocker switch - 1-pole on/off switch,...
Content 1 Piece
€1.11 *
Item no: F23106372
Add
Pressure switch, chrome - 3V/5V, LED illuminated Pressure switch, chrome - 3V/5V, LED illuminated
Content 1 Piece
from €4.00 *
Item no: F23108618
Add
Rocker switch 2 positions KCD1-105 250V, 10A Rocker switch 2 positions KCD1-105 250V, 10A
Content 1 Piece
€0.48 *
Item no: F23109016
Add
Rocker switch KCD-1 - 12*18.8mm, waterproof, illuminated Rocker switch KCD-1 - 12*18.8mm, waterproof,...
Content 1 Piece
€2.32 *
Item no: F23109017
Add
Photoelectric switch, light barrier - ITR20403 Photoelectric switch, light barrier - ITR20403
Content 1 Piece
€1.42 *
Item no: F23109086
Add
Rocker switch KCD-2 - 21.5*27.5mm, waterproof, illuminated Rocker switch KCD-2 - 21.5*27.5mm, waterproof,...
Content 1 Piece
€2.32 *
Item no: F23108522
Add
40 pieces breadboard cable male/male (20cm) 40 pieces breadboard cable male/male (20cm)
Content 1 Piece
€1.74 *
Item no: FUN-1010558
Add
5V touch sensor module for microcontroller 5V touch sensor module for microcontroller
Content 1 Piece
€1.48 *
Item no: F23106653
Add
Light barrier, photoelectric switch - U-shape Light barrier, photoelectric switch - U-shape
Content 1 Piece
€1.67 *
Item no: F23107474
Add
KY-003 Magnetic switch - Hall effect sensor KY-003 Magnetic switch - Hall effect sensor
Content 1 Piece
€1.45 *
Item no: F23106679
Add
40 pieces breadboard cable male/female (20cm) 40 pieces breadboard cable male/female (20cm)
Content 1 Piece
€1.74 *
Item no: FUN-1010554
Add
Ultrasonic sensor, distance sensor - HC-SR04 Ultrasonic sensor, distance sensor - HC-SR04
Content 1 Piece
€2.18 *
Item no: FUN-1010564
Add
Breadboard (plug-in board) with 830 contacts Breadboard (plug-in board) with 830 contacts
Content 1 Piece
€2.90 *
Item no: FUN-1010553
Add
40 pieces breadboard cable female/female (20cm) 40 pieces breadboard cable female/female (20cm)
Content 1 Piece
€1.67 *
Item no: FUN-1010559
Add
1602 I2C LCD module with HD44780 1602 I2C LCD module with HD44780
Content 1 Piece
€3.78 *
Item no: FUN-1010568
Add
5V traffic light, traffic light module for microcontroller 5V traffic light, traffic light module for...
Content 1 Piece
€1.54 *
Item no: F23107277
Add
Funduino SG90 servo motor (see TowerPro) Funduino SG90 servo motor (see TowerPro)
Content 1 Piece
€2.59 *
Item no: F23107201
Add
LDR 10K photoresistor LDR 10K photoresistor
Content 1 Piece
€1.26 *
Item no: F23106706
Add
Stepper motor 28BYJ-48 with ULN2003 driver board Stepper motor 28BYJ-48 with ULN2003 driver board
Content 1 Piece
€2.89 *
Item no: F23107464
Add
Relay card 1-channel 5V / 230V for Arduino Relay card 1-channel 5V / 230V for Arduino
Content 1 Piece
€1.72 *
Item no: F23107168
Add
ADXL345 - 3-axis accelerometer, tilt sensor ADXL345 - 3-axis accelerometer, tilt sensor
Content 1 Piece
€3.73 *
Item no: F23107012
Add
- 20%
ACS712 - Current sensor, 5A ACS712 - Current sensor, 5A
Content 1 Piece
€2.42 * €3.04 *
Item no: F23106659
Add
OLED - 0.96", 128x64, GVSS, I2C OLED - 0.96", 128x64, GVSS, I2C
Content 1 Piece
€4.66 *
Item no: FUN-1010561
Add
OLED - 0.91", 128x32, GVSS , I2C OLED - 0.91", 128x32, GVSS , I2C
Content 1 Piece
€3.78 *
Item no: F23106624
Add
Distance sensor, obstacle detection sensor - Infrared (IR) Distance sensor, obstacle detection sensor -...
Content 1 Piece
€1.59 *
Item no: F23107475
Add
Funduino UNO R3 microcontroller - Arduino compatible Funduino UNO R3 microcontroller - Arduino...
Content 1 Piece
€13.90 *
Item no: F23107480
Add
Motion detector, PIR sensor - HC-SR501 Motion detector, PIR sensor - HC-SR501
Content 1 Piece
€2.34 *
Item no: FUN-1010565
Add
RFID-KIT with Mifare RC522 receiver RFID-KIT with Mifare RC522 receiver
Content 1 Piece
€2.86 *
Item no: FUN-1010560
Add
Voltage sensor, 25V Voltage sensor, 25V
Content 1 Piece
€1.30 *
Item no: F23106636
Add
Humidity sensor for microcontroller Humidity sensor for microcontroller
Content 1 Piece
€1.45 *
Item no: F23107276
Add
Reed contact door switch / door and window monitoring for alarm systems Reed contact door switch / door and window...
Content 1 Piece
€1.79 *
Item no: F23106485
Add
- 2%
RGB LED board (WS2812, comparable with Neopixel) - various sizes RGB LED board (WS2812, comparable with...
Content 1 Piece
from €1.87 * €1.90 *
Item no: F23107305
Add
Microswitch - Vertical, with roller Microswitch - Vertical, with roller
Content 1 Piece
€0.96 *
Item no: F23106711
Add
SPI microSD card module - TF card reader SPI microSD card module - TF card reader
Content 1 Piece
€1.72 *
Item no: F23106642
Add
7-segment display with four digits 7-segment display with four digits
Content 1 Piece
€1.33 *
Item no: F23106605
Add
KY-039 - Sensor for pulse measurement KY-039 - Sensor for pulse measurement
Content 1 Piece
€1.45 *
Item no: F23108606
Add
DC plug-in adapter with screw terminal - male DC plug-in adapter with screw terminal - male
Content 1 Piece
€0.96 *
Item no: F23106646
Add
Drop sensor, water level sensor for microcontroller Drop sensor, water level sensor for...
Content 1 Piece
€1.23 *
Item no: F23107273
Add
100 pieces - LEDs with 5mm diameter (5 colors) 100 pieces - LEDs with 5mm diameter (5 colors)
Content 1 Piece
€1.97 *
Item no: F23107316
Add
8x8 LED matrix with MAX7219 driver board 8x8 LED matrix with MAX7219 driver board
Content 1 Piece
€3.56 *
Item no: F23106669
Add
10x Jumper cable with crocodile clips, male, 22cm 10x Jumper cable with crocodile clips, male, 22cm
Content 1 Piece
€3.00 *
Item no: F23107468
Add
- 5%
L298N H-bridge for two motors / motor drivers L298N H-bridge for two motors / motor drivers
Content 1 Piece
€3.22 * €3.40 *
Item no: F23107161
Add
- 40%
RTC module DS3231 with I2C interface RTC module DS3231 with I2C interface
Content 1 Piece
€3.05 * €5.10 *
Item no: F23106657
Add
- 16%
KY-023 - Joystick module KY-023 - Joystick module
Content 1 Piece
€1.29 * €1.54 *
Item no: F23107469
Add
KY-018 Photoresistor on circuit board KY-018 Photoresistor on circuit board
Content 1 Piece
€1.45 *
Item no: F23106644
Add
GY-271M Compass module / magnetic field sensor (replaces HMC5883L GY-271) GY-271M Compass module / magnetic field sensor...
Content 1 Piece
€9.52 *
Item no: F23107574
Add
- 12%
GY-BME280 - Air pressure, humidity, temperature sensor - I2C/SPI GY-BME280 - Air pressure, humidity, temperature...
Content 1 Piece
€8.74 * €9.90 *
Item no: F23106637
Add
LOKLiK iCraft™ LOKLiK iCraft™
Content 1 Piece
€249.95 *
Item no: F23110590
Add
- 3%
TIP!
Funduino Cube - Arduino compatible developer board, incl. workbook Funduino Cube - Arduino compatible developer...
Content 1 Piece
€57.90 * €59.90 *
Item no: FUN-1010494
Add
Push-button, black - 3-9V, LED illuminated Push-button, black - 3-9V, LED illuminated
Content 1 Piece
from €4.22 *
Item no: F23108460
Add
- 3%
Sliding potentiometer, linear potentiometer - 10k Ohm Sliding potentiometer, linear potentiometer -...
Content 1 Piece
€2.82 * €2.90 *
Item no: F23106454
Add
Deep Robotics SID 1 (Lite 3) Deep Robotics SID 1 (Lite 3)
from €4,747.90 *
Item no: F25110719
Add
FLUX Beambox II laser cutter FLUX Beambox II laser cutter
€3,680.00 *
Item no: F25110674
Add
Robotics learning module - battery test - for Dobot and Universal Robots Robotics learning module - battery test - for...
Content 1 Piece
€149.00 *
Item no: F23110537
Add
Funduino Expansion Board for Calliope Mini V3 Funduino Expansion Board for Calliope Mini V3
Content 1 Piece
from €29.90 *
Item no: F23110425.1
Add
Unitree Go2-W (Wheeled) Robot Unitree Go2-W (Wheeled) Robot
Content 1 Piece
from €26,775.00 *
Item no: F23110387
Add
Soldering exercise - Electromagnetic swing / oscillator kit Soldering exercise - Electromagnetic swing /...
Content 1 Piece
€9.90 *
Item no: F23110373
Add
Push-button, chrome - 3V/5V, LED illuminated - with socket Push-button, chrome - 3V/5V, LED illuminated -...
Content 1 Piece
from €5.11 *
Item no: F23110281
Add
Funduino Cube adapter board - ESP32 Funduino Cube adapter board - ESP32
Content 1 Piece
€7.90 *
Item no: F23110270
Add
DIY wooden off-road vehicle kit DIY wooden off-road vehicle kit
Content 1 Piece
€3.16 *
Item no: F23110131
Add
Propeller car kit with electric motor Propeller car kit with electric motor
Content 1 Piece
€3.85 *
Item no: F23107958
Add
Sold out
Grove oxygen (O2) sensor - ME2-O2-Ф20 Grove oxygen (O2) sensor - ME2-O2-Ф20
Content 1 Piece
€96.65 *
Item no: F23106041
Add
Sold out
Grove - Volume sensor (LM2904) with microphone Grove - Volume sensor (LM2904) with microphone
Content 1 Piece
€7.40 *
Item no: F23106164
Add
Grove - Button for Arduino Grove - Button for Arduino
Content 1 Piece
€1.80 *
Item no: F23109246
Add
Grove - LED button red Grove - LED button red
Content 1 Piece
€3.20 *
Item no: F23106096
Add
Grove - Joystick - Arduino compatible Grove - Joystick - Arduino compatible
Content 1 Piece
€5.90 *
Item no: F23107259
Add
Sold out
Robot dog "Bittle" from Tinkergen/Petoi (open source) Robot dog "Bittle" from Tinkergen/Petoi (open...
Content 1 Piece
€327.90 *
Item no: F23107266
Add
Sold out
- 21%
5* push-button large, 5* cap for push-button - black, blue, red, green, yellow 5* push-button large, 5* cap for push-button -...
Content 1 Piece
€3.12 * €3.95 *
Item no: F23105538
Add
Soldering exercise Signal generator NE555 with adjustable frequency square wave signal Soldering exercise Signal generator NE555 with...
Content 1 Piece
€2.71 *
Item no: F23107647
Add
Secret switch mirror switch inductive 12V illuminated, LED strip Secret switch mirror switch inductive 12V...
Content 1 Piece
€6.58 *
Item no: F23107563
Add
Bluetooth name badge LED badge 11x44 pixels - various colors Bluetooth name badge LED badge 11x44 pixels -...
Content 1 Piece
from €10.87 *
Item no: F23105759
Add
Heart soldering exercise (pulsating LEDs) - different colors Heart soldering exercise (pulsating LEDs) -...
Content 1 Piece
€3.28 *
Item no: F23105739
Add
Sold out
- 16%
Button with colored knob - 12*12*6mm / 12*12*9mm Button with colored knob - 12*12*6mm / 12*12*9mm
Content 1 Piece
€0.21 * €0.25 *
Item no: F23106061
Add
500mA Mini Solar Charge Controller for Lipo Lithium Battery 500mA Mini Solar Charge Controller for Lipo...
Content 1 Piece
€2.94 *
Item no: F23108237
Add
5A DC-DC MPPT solar voltage regulator 5A DC-DC MPPT solar voltage regulator
Content 1 Piece
€8.84 *
Item no: F23108268
Add
Propeller vehicle kit with a propeller 2xAA 3V Propeller vehicle kit with a propeller 2xAA 3V
Content 1 Piece
€3.05 *
Item no: F23106365
Add
Soldering exercise - Sound generator with 22AMS13 and 22AMS13 chip, 4 switches, loudspeaker Soldering exercise - Sound generator with...
Content 1 Piece
€3.74 *
Item no: F23106289
Add
- 26%
Magnetic inductive angle measurement sensor module AS5600 Magnetic inductive angle measurement sensor...
Content 1 Piece
€3.33 * €4.50 *
Item no: F23106152
Add
Push-button, Button - with XH2.54 3P socket Push-button, Button - with XH2.54 3P socket
Content 1 Piece
€2.61 *
Item no: F23109061
Add
Capacitive switch, illuminated, LED, various colors Capacitive switch, illuminated, LED, various...
Content 1 Piece
€2.32 *
Item no: F23109142
Add
Adjustable potentiometer - with XH2.54 3P connector Adjustable potentiometer - with XH2.54 3P...
Content 1 Piece
€3.49 *
Item no: F23108990
Add
GPIO Adapter for Micro:Bit Microcontroller - with bent pins GPIO Adapter for Micro:Bit Microcontroller -...
Content 1 Piece
€14.78 *
Item no: F23109094
Add
Still 1 in stock!
- 18%
Creality Resintank - replacement tank for 3D printers Creality Resintank - replacement tank for 3D...
Content 1 Piece
from €45.15 * €54.90 *
Item no: F23105429
Add
PRO MINI developer board (5V) - Arduino compatible PRO MINI developer board (5V) - Arduino compatible
Content 1 Piece
€10.38 *
Item no: F23109157
Add
Last viewed