• How to Place an Order

  • bKash Payment Method

  • Nagad Payment Method

  • Request for Quotation/ International Sourcing

  • Order Status

Choose Your Size Quick view

Reference: 984

Heat Shrink Tube

Heat Shrink Tubing 2:1, Eventronic Electrical Wire Cable Wrap Assortment Electric Insulation Heat Shrink Tube Kit (1 pcs) Please Choose Size Below

Price BDT 2
More
In-Stock
Jumper wire 40 Pcs Quick view

Reference: 31

Jumper Wire 40 Pcs Set

3 Types Available 1. Male to Male  2. Male to Female 3. Female-Female

Price BDT 90
More
In Stock
470 Ohm 1/4w - Pack of 5 Quick view

Reference: 245

Kiloohm (KΩ) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

Price BDT 5
More
In Stock
Jumper Wire Single Medium Quick view

Reference: 1354

Jumper Wire Single Medium

Length: 8.5 inches (Medium) Material: Copper Plated.EachPin Spacing: 2.54mm.Color: Colorfulcompatible with 2.54mm mil spacing pin headers.It can be used for PCB project, pc motherboard, etc.Allow you to plug and unplug easily for prototyping.Package Contents: 1 x Jumper Wire You will get only one pcs.

Price BDT 3
More
In-Stock
Push Button Switch Quick view

Reference: 761

Push Button Switch

Push Button Switch

Price BDT 5
More
In-Stock
Buzzer Quick view

Reference: 766

Ohm (Ω) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

Price BDT 5
More
In-Stock
5 mm Green LED (Pack of 5) Quick view

Reference: 768

5 mm Red LED (Pack of 5)

5 mm Red LED (Pack of 5)

Price BDT 5
More
In-Stock
On sale! Arduino Uno R3 (Made in Italy) Quick view

Reference: 94

Arduino Uno R3

Arduino UNO in Bangladesh The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller.

Price BDT 399
More
In Stock
Buzzer Quick view

Reference: 758

BC547 NPN Transistor

BC547 NPN Transistor

Price BDT 2
More
In-Stock
Buzzer Quick view

Reference: 755

5 mm Green LED (Pack of 5)

5 mm Green LED (Pack of 5)

Price BDT 5
More
In-Stock
All best sellers
Sonoff 4CH R2 Smart Switch Wifi
  • Sonoff 4CH R2 Smart Switch Wifi
  • Sonoff 4CH R2 Smart Switch Wifi

Sonoff 4CH R2 Smart Switch Wifi

1015

Sonoff 4CH R2 Smart Switch Wifi

  • Power Supply: 90V~250V AC(50/60Hz)
  • Max. Current: 10A/gang
  • Max. Power:2200W/gang, 2200W/Total
  • Wireless Standard: 802.11 b/g/n
  • Security Mechanism: WPA-PSK/WPA2-PSK
  • Enclosure Material: Fire-retardant ABS V0
BDT 1,599
rating Read the 4 reviews
Average rating: 5/5 - Number of reviews: 4
Quantity
In-Stock

  • Store Pickup Available! Store Pickup Available!
  • Free Ship Over 5000 BDT Free Ship Over 5000 BDT
  • Quality Product Quality Product
  • No Warranty No Warranty
  • No Replacement No Replacement
Description
  • Remote ON/OFF–Turn electrical devices on/off from anywhere
  • App Support –Free iOS and Android mobile App eWeLink
  • Independent control–Control each gang separately
  • DIN Rail Mounted– Great for industrial control
  • Sync Status–Real-time device status provided to App
  • Share Control–Control your smart home together with your family
  • Timing–Set scheduled/countdown timers to turn on/off at specified time
  • Scene–Turn on/off a gang of devices with one tap
  • Smart Scene–Triggered on/off by temp, hum or other environmental conditions from sensor
  • Compatibility –Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nest
 
 
 

Overview

Sonoff 4CH & 4CH R2 are 4-gang switches with din rail mounting. Sonoff 4CH (R2) 4 gang light switch supports to connect and control 4 electrical appliances, which can be turned on/off separately by the buttons or iOS/Android App EweLink. Besides, with the multi gang switch, you can check real-time devices status for each device on App. Owning a Sonoff 4CH (R2) multi gang switch means you have 4 Sonoff basic WiFi switches integrate together. 

The enclosure is din rail mount supported! DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish.

Sonoff 4CH (R2) 4 gang WiFi light switch belongs to Sonoff family, definitely, it bears all the functions basic Sonoff has. In EweLink, you can remote turn on/off from anywhere at any time, set single/repeat/countdown timing schedules to turn on/off at a specified time, share to others so that they can control together.

Sonoff 4CH (R2) is hacker-friendly that you can flash your firmware without difficulty. Read ESP8285 datasheet.

Works With Amazon Alexa

You can ask Alexa to turn on/off Sonoff 4CH (R2).

Standard voice control commands phrases (if you just say the device name, Alexa will turn on/off all the 4 gangs immediately):

Alexa, turn on {deviceName}
Alexa, turn off {deviceName}

Alexa, turn on {deviceName} {gangName}
Alexa, turn off {deviceName} {gangName}

The default names for the 4 gangs are: outlet 1, outlet 2, outlet 3, outlet 4. You can change the name if you like.

Explanation: if the device name of your Sonoff 4CH (R2) is "My Switch", the gang name is "Outlet 1", then you can control with "Alexa, turn on My Switch Outlet 1".

For detailed tutorial, please click here.

Features

  • Turn on/off 4 home appliances remotely
  • Device status's synchronously display
  • Scheduled/Countdown timers
  • Share control
  • Supports setting power on status
  • Works with Amazon Echo, Echo Dot, Amazon Tap
  • Works with Google Home, Google Nest
  • Works with IFTTT

Specification

  • Power Supply: 90V~250V AC(50/60Hz)
  • Max. Current: 10A/gang
  • Max. Power2200W/gang, 2200W/Total
  • Wireless Standard: 802.11 b/g/n
  • Security Mechanism: WPA-PSK/WPA2-PSK
  • Enclosure Material: Fire-retardant ABS V0
  • Gang:  4
  • Dimensions: 145*90*40 (mm)
  • Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F)
  • Operating Humidity: 5%-90%RH, Non-condensing
  • 4CH Certification: CE/FCC/RoHS (Download)
  • 4CH R2 Certification: CE/RoHS (Download), FCC(Download)
Product Details
1015
3 Items
Reset
rating
13/10/2020
Abdul Hannan
কেমন করে রিসেট করবো সেটা জানতে চেয়ে দুই দিন আগে মেইল করেছি কিন্তু কোন রিপ্লাই পাইনি ধন্যবাদ
Review
rating
22/09/2020
Kabir
Very good product and useful
Sonoff 4ch
rating
23/06/2020
Md. Shafiqul islam
Good product and they delivered it fast. Good
Good product
rating
20/05/2020
Selim Rana
sonoff product is 5/5
30 other products in the same category:
Heart Rate Pulse Sensor Pulsesensor Sensor Module For Arduino Quick view

Reference: 348

Heart Rate Pulse Sensor Pulsesensor Sensor Module For Arduino

Description: Heart rate data can be really useful whether you’re designing an exercise routine, studying your activity or anxiety levels or just want your shirt to blink with your heart beat. The problem is that heart rate can be difficult to measure. Luckily, the Pulse Sensor Amped can solve that problem!

Price BDT 280
More
In-Stock
TCRT5000L Reflective Optical Sensor Quick view

Reference: 132

TCRT5000L Reflective Optical Sensor

The TCRT5000 and TCRT5000L are reflective sensors which include an infrared emitter and phototransistor in a leaded package which blocks visible light. The package includes two mounting clips. TCRT5000L is the long lead version.

Price BDT 10
More
In-Stock
On sale! JF-0530B Pull Push Type Electric Solenoid Electromagnet 10mm 5N DC12V Quick view

Reference: 432

JF-0530B Pull Push Type Electric Solenoid Electromagnet 10mm 5N DC12V

Product Name : DC Solenoid Electromagnet;Model : JF-0530B;Rated Voltage : DC 12V RatedCurrent : 300mA;Action Form : Pull Push Type;Rated Stroke & Force : 10mm, 5N Body Size : 30 x 15x 15mm/1.2"x 0.59"x 0.59"(L*W*H);Pluger Dia. : 56mm/ 2.2" Cable Length : 20cm/ 7.9";Material : Metal, Electronic Parts Weight : 32g;Package Content : 1 x DC Solenoid...

Price BDT 790
More
In-Stock
Capacitor 16v 100uf Quick view

Reference: 844

Capacitor 16v 100uf

Capacitor 16v 100uf

Price BDT 3
More
In-Stock
On sale! ESP8266 ESP-01 WIFI Wireless Transceiver Send Receive LWIP AP+STA M70 Quick view

Reference: 345

ESP8266 ESP-01 WIFI Wireless Transceiver Send Receive LWIP AP+STA M70

ESP8266 is a wifi SOC (system on a chip) produced by Espressif Systems. It is an highly integrated chip designed to provide full internet connectivity in a small package. This is a module based on ESP8266 chip. Please see supplied pinout photo and schematics for connectivity details. There is a lot of online resources available for this module. 

Price BDT 200
More
In-Stock
18650 Li-ion Rechargeable... Quick view

Reference: 837

18650 Li-ion Rechargeable Battery

18650 Li-ion Rechargeable Battery 3.7 Volt Rechargeable Lithium ION Re/Discharging Protection Circuit   It's a clone battery so the ampere couldn't be guaranteed.

Price BDT 55
More
In-Stock
Full-Color RGB SMD Led Module Quick view

Reference: 1302

Full-Color RGB SMD Led Module

KEYES 5050 Full-Color LED SMD Sensor Module 3-Color RGB Tricolor Current-limiting with Dupont Line for ArduinoMain Features:● Using 5050 full color LED● RGB tricolor current-limiting resistance to prevent burn out● Through the PWM adjusting three primary colors can be mixed to obtain different colors● With a variety of single-chip interface● Working...

Price BDT 55
More
Out-of-Stock
Light Depending Resistor (LDR) Quick view

Reference: 995

Light Depending Resistor (LDR)

Light Depending Resistor (LDR)

Price BDT 5
More
In-Stock
1N4742 12V Zener Diode Quick view

Reference: 1362

1N4742 12V Zener Diode

1N4742 12V Zener Diode

Price BDT 3
More
In-Stock
DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator Quick view

Reference: 562

DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator

DC 3v-6v to 400kV 400000V Boost Step-up Power Module High-voltage Generator Input voltage: DC 3 V to 6 VInput current: 2 A - 5 AHigh-pressure type: the type of pulse currentOutput voltage: 400000 v(Please pay attention to safety)High-pressure discharge distance between 10 mm - 20 mmThe output high voltage wire length: 100 mm

Price BDT 650
More
In-Stock
IR Infrared Remote Decoder Encoding Transmitter & Receiver Wireless Module Quick view

Reference: 691

IR Infrared Remote Decoder Encoding Transmitter & Receiver Wireless Module

IR Infrared Remote Decoder Encoding Transmitter & Receiver Wireless Module

Price BDT 500
More
In-Stock
AC Light Dimmer Module, 2... Quick view

Reference: 1331

AC Light Dimmer Module, 2 Channel, 3.3V/5V logic, AC 50/60hz, 220V/110V

AC Light Dimmer Module, 2 Channel, 3.3V/5V logic, AC 50/60hz, 220V/110V General information This is the good old AC Dimmer, but with 2 channels. This one also can control the alternating current voltage in the same way. It can be used with lamps, elements, fans, pumps, air cleaners etc. So it’s the same thing, but twice bigger. In the tutorial, you can...

Price BDT 1,099
More
In-Stock
RS485 USB-485 Converter Adapter Support Win7 XP Vista Linux Mac OS Quick view

Reference: 566

RS485 USB-485 Converter Adapter Support Win7 XP Vista Linux Mac OS

 RS485 USB-485 Converter Adapter Support Win7 XP Vista Linux Mac OS

Price BDT 1,000
More
Pre-Order
KEWEISI KWS-10VA USB TESTER AMMETER-VOLTMETER Quick view

Reference: 963

KEWEISI KWS-10VA USB TESTER AMMETER-VOLTMETER

The Keweisi KWS-10VA is great for checking 5V USB loads. We use one of these devices with an Original iPad charger for testing general charging issues There are two ports on the device, however they are connected together, so we don’t suggest charging multiple devices at once. For convenience however, you can connect a Micro USB, and Lightning cable (for...

Price BDT 360
More
In-Stock
Button Keypad 3x4 module... Quick view

Reference: 1333

Button Keypad 3x4 module (Assembled)

The module has 12 push buttons. You can make usual keypads for enter numbers, symbols, or navigate and selections in the program. There are pull-up resistors of different values for each button. This makes it possible to connect all the 12 keys to taking only one analog port of the microcontroller. The button consists of two parts: a cap, which can be...

Price BDT 699
More
In-Stock
LM324N Quad Op-Amp Quick view

Reference: 1011

LM324N Quad Op-Amp

LM324N Quad Op-Amp

Price BDT 10
More
In-Stock
Battery 9V Quick view

Reference: 652

Battery 9V

Battery 9V

Price BDT 40
More
In-Stock
100uH 0.5W Color Ring Inductor Quick view

Reference: 1359

100uH 0.5W Color Ring Inductor

100uH (0.1mH) 1/2W with ±10% Tolerance, Axial Lead, Epoxy Coated, Color Band Identifier, Fixed Inductor

Price BDT 7
More
In-Stock

APC220 Radio Communication Module Quick view

Reference: 196

Brand: DFRobot

APC220 Radio Communication Module

INTRODUCTION The APC220 radio module provides a  simple and economic solution to wireless data communications. Integrates an  embedded high speed microprocessor  and high performance IC that creates a  transparent UART/TTL interface, and  elminates any

Price BDT 5,000
More
In Stock
Diode 1N5408 Quick view

Reference: 842

Diode 1N5408

Diode 1N5408

Price BDT 3
More
In-Stock
Flex Sensor 2.2" Quick view

Reference: 169

Flex Sensor 2.2"

Description: A simple flex sensor 2.2" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the originalNintendo Power Glove. I love the Nintendo Power Glove. It’s so bad!

Price BDT 1,050
More
In-stock
IR Receiver Diode (3mm) Quick view

Reference: 1189

IR Receiver Diode (3mm)

IR Receiver Diode (3mm) IR receiver diodes can be used in object detection applications like line follower,obstacle detecting robots etc.These were used in our IR Sensor Array.

Price BDT 4
More
In-Stock
Buzzer Quick view

Reference: 765

AA Battery Holder 4S

AA Battery Holder 4S

Price BDT 55
More
In-Stock
12V 60W TEC1-12706 Thermoelectric Cooler Peltier Quick view

Reference: 343

12V 60W TEC1-12706 Thermoelectric Cooler Peltier

Get cold or heat up by simply reversing the polarity, used for numerous applications from CPU coolers to alternate power sources, or even for your own custom car drink warmer/cooler.

Price BDT 250
More
In-Stock
UA741CN Operational Amplifier Quick view

Reference: 1025

UA741CN Operational Amplifier

UA741CN Operational Amplifier

Price BDT 20
More
In-Stock
I2C Bi-directional Logic... Quick view

Reference: 944

I2C Bi-directional Logic Level Converter

Tiny, space saving design 13mm x 11mm On-board 3.3V 250mA voltage regulator 2-way bi-directional mosfet logic level conversion Works with I2C Breadboard friendly pin connections spaced at 0.1in and 0.4in apart

Price BDT 65
More
In-Stock
RFID Module V3 Kits Reader Writer Arduino Android Phone Quick view

Reference: 346

PN532 NFC RFID Wireless Module V3 User Kits Reader Writer Mode IC S50 Card PCB Attenna I2C IIC SPI HSU For Arduino

NXP PN532 NFC RFID Module V3 Kits Reader Writer Arduino Android Phone M92 NFC is a popular technology in recent years. We often heard this work while smart phone company such as Samsung or HTC introduces their latest high-end phones. Almost all the high-end phone in the market support NFC.

Price BDT 750
More
In-Stock
Buzzer Quick view

Reference: 766

Ohm (Ω) 1/4w Resistors - Pack of 5

Choose your desire Resistor value from below: 

Price BDT 5
More
In-Stock
WS2812 16-bit 5050 Full... Quick view

Reference: 1326

WS2812 16-bit 5050 Full Color RGB LED Module

Chip: WS2812 (built-in LED)LED:1pcs 5050 RGB full color highlightingVoltage: 5VPorts: DigitalPlatform: for Arduino microcontroller

Price BDT 205
More
In-Stock
Songle Power 12VDC Relay SRU-12VDC-SL-C PCB 5 Pin Quick view

Reference: 751

Songle Power 12VDC Relay SRU-12VDC-SL-C PCB 5 Pin

• Switching capacity available by 10A in spite of small size design for highdensity P.C. board mounting technique. • UL,CUL,TUV recognized. • Selection of plastic material for high temperature and better chemical solution performance. • Sealed types available. • Simple relay magnetic circuit to meet low cost of mass production.

Price BDT 25
More
Pre-Order

Follow us on Facebook