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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 Wi-Fi switches integrate together.
The enclosure is din rail mount supported! A 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 Wi-Fi 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. RoboticsBD
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
| General Specification | |
| 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 |
| Gang: | 4 |
| Dimensions: | 145*90*40 (mm) |
| Operating Temperature(recommended): | 0ºC-40ºC(32°F-104°F) |
| Operating Humidity: | 5%-90%RH, Non-condensing |
| Shipment Weight | 0.320 kg |
| Shipment Dimensions | 15 × 10 × 5 cm |
1 x Sonoff 4CH R2 Smart Switch Wi-Fi
The latest price of Sonoff 4CH R2 Smart Switch Wifi in Bangladesh is BDT 1,599 You can buy the Sonoff 4CH R2 Smart Switch Wifi at best price from our RoboticsBD or visit RoboticsBD Office.
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Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
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Product Images are shown for illustrative purposes only and may differ from the actual product. |
Reference: RBD-0814
The 2021 Model is Sonoff Basic R2 Support remotely turn on or off added devices. Support Max 8 timers tasks for each added device. Works with AMAZON ALEXA Works with GOOGLE ASSISTANT Also, Work with NEST Support numerous Wi-Fi smart switches one smartphone.
Reference: RBD-0960
Voltage range: 100-240V AC Color: White Remote Control Monitor Energy Usage Historical Energy Consumption Overload Protection Measure Power Usage for a Period Sync Status Timing Function Share Control Smart Scene APP Supported Check out New Product Sonoff POWR320D Elite Smart Power Meter Switch
Reference: RBD-1015
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
Reference: RBD-1016
Power Supply: 90-250V AC Max Current: 16A(2 gang),10A(1 gang) Max Power: 3500W(2 gang) / 2200W(1 gang) Product Dimensions: 114*52*32mm Color: White Frequency: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK
Reference: RBD-1017
Input: AC 100-240V 50/60 Hz 5A Output: Light: AC 100-240V 50/60 Hz 3A, Fan: AC 100-240 V 50/60 Hz 2A Max Rf Frequency: 433.92 MHz Turn on/off ceiling fan and light using your voice Support the RM433 RF to control devices (RM433 RF included) Share the device and manage it with your family together Display the real-time device status on the app Check out...
Reference: RBD-1176
Power supply: 90V~250V AC(50/60Hz) Max. Current: 10A Remote turn on/off connected device. Support checking real-time device status on APP. Support scheduled/countdown/loop timing tasks. Setting scene to turn on/off a group of devices in the same account. Setting scene to trigger on/off the other device by status changes
Reference: RBD-1345
Remotely control the ceiling fan and light on your phone Turn on/off ceiling fan and light using your voice Support the RM433 RF to control devices (RM433 RF included) Share the device and manage it with your family together Display the real-time device status on the app The fan speed is optional from the high, medium and low speed (only for RM433 RF)...
Reference: RBD-1418
Model: 4CHR3 Input Voltage: 110-240V AC 16A MAX Output Voltage: 110-240V AC 10A/Gang (16A total) WiFi: IEEE 802.11b/g/n 2.4GHz Color: White Material: PC Dimension: 145 x 90 x 34 mm
Reference: RBD-1525
Can control up to 3 device 220V Model : T3EU3C Remotely control devices through a phone Turn on/off devices with Amazon Alexa and Google Assistant Touch control buttons for convenient operation Set a particular time to turn on/off devices Customize one or groups of SONOFF devices to turn on/off with a simple tap Allow you to manage devices when there is...
Reference: RBD-1526
Can control up to 2 device 220V Model : T3EU2C Remotely control devices through a phone Turn on/off devices with Amazon Alexa and Google Assistant Touch control buttons for convenient operation Set a particular time to turn on/off devices Customize one or groups of SONOFF devices to turn on/off with a simple tap Allow you to manage devices when there is...
Reference: RBD-0762
Cable length: 50 cm One connector crocodile test clip Interface: DC Jack Color: red and black Wire AWG: 1.15mm
Reference: 1818
Overload protection on the input and output No latch-up when the common mode range is exceeded Applications: Audio, Communications & Networking, Signal Processing Current Stock: 741CP
Reference: RBD-0350
100% Brand new and high quality STM32 Board Model: STM32F103C8T6. Core: ARM 32 Cortex-M3 CPU. Debug mode: SWD. 72MHz work frequency. 64K flash memory, 20K SRAM. RoboticsBD 2.0-3.6V power, I/O.
Reference: RBD-0769
Size: 5mm Color: BLUE Head Shape: Round Lens Appearance: Transparent
Reference: RBD-1501
6 pins. JDEC compliant. Molded notch for proper orientation. Easy to insert and remove ICs.
Reference: RBD-0389
Adopt imported controller PL2303HX, which can stabilize the flash with high speed 500mA self-recovery fuse for protection Two data transmission indicator can monitor data transfer status in real time Reserve 3.3V and 5V pin interface, easy for the DDWRT of different voltage system that needs power The entire board is coated by the high quality transparent...
Reference: RBD-180
Brand: SparkFun Electronics
Description: This is the same product as the Makey Makey Standard Kit. The difference is this version comes in fancy clamshell packaging meant for our distributors that need it. Regular customers are welcome to order, but we want to limit the amount of extra packaging finding its way into the trash heap.
Reference: RBD-1540
Can offer 360 degrees of illumination Energy-saving, long lifetime Wire diameter: 2mm EL light length: 3M Lifetime: >12,000 hours Color: Blue
Reference: RBD-1477
Transistor Silicon NPN Triple Diffused Type Package/Case: DIP-16 TTC5200 IGBT
Reference: RBD-2238
Wearable e-textile technology. Designed with large sew tabs LED Blue Color
Reference: RBD-0992
Resistance: 10k Ohm Tolerance: 10 % Temperature coefficient: ±100 ppm/ºC Operating temperature range: -55ºC to +125ºC Mounting type: Through-hole
Reference: RBD-0196
Brand: DFRobot
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
Reference: RBD-1736
Locking On/Off Switch Green LED Power Indicator Voltage Swapping Switch on both rail Channel Its concave design will not waste your proto zone. Easy to install on a breadboard with Compact portable size
Reference: RBD-1215
131 powerful instructions – Most Single Clock Cycle Execution 32 x 8 general purpose working registers Fully static operation Up to 20MIPS throughput at 20MHz On-chip 2-cycle multiplier Write/erase cycles: 10,000 flash/100,000 EEPROM Optional boot code section with independent lock bits In system programming by on-chip boot program True read while write...
Reference: RBD-0753
Input Voltage(Max.) : 5V Resistance: 90 Ω Resonance Frequency: 2048 Hz Sound pressure(dB(A)/10cm)min.: 80 Body Size : 12 x 9.5mm Pin Pitch: 6mm External Material: Plastic; Color: Black
Reference: RBD-1688
LM1084 5A Low Dropout Positive Regulator
Reference: RBD-0668
Crystal 32.768KHz, matching capacitance 6pF DS1302 8-pin SMD homemade chips Seconds, Minutes, Hours, Day of Month, Day of Week, and Year Operating temperature: 0 degree — 70 degree. RoboticsBD
Reference: RBD-1715
16 pins. Molded notch for proper orientation. Easy to insert and remove ICs.
Reference: RBD-1886
830 Solder-less Points Ideal for Experimenting With Circuit Design In Labs Compatible with resistance, diodes, transistors, LED’s, Capacitors and other types of electronic components Colored coordinates for easy components placement. Accept a variety of wire sizes 20-29 AWG
Reference: RBD-2110
Low dropout voltage Load regulation: 0.2% typical Optimized for Low Voltage On-chip thermal limiting Built-in thermal shutdown Good noise rejection
Reference: RBD-0364
Reduces the risk of hardware failure due to overheating Low profile, will fit into most cases. Simple, Passive cooling. No need for noisy fans. RoboticsBD Perfectly sized for the RPi’s CPU
Reference: RBD-0411
Low current consumption (typical 30 mA) CW or pulse operation Flat profile Long detection range (20 m) Supply voltage: 4.75V to 5.25V X-Band Frequency: 10.525 GHz Minimum Power Output: 13 dBm EIRP. RoboticsBD
Reference: RBD-1738
Operating Voltage : 1.5 ~ 15V DC Working Current: Less than 25mA Tone Generation Range : 1.5 ~ 2.5kHz Dimensions (LxWxH): 26 x 15 x 11 mm
Reference: RBD-1777
MODEL: 24VDC WEIGHT: 50.00g DIMENSIONS: 1.80cm x 1.50cm x 1.60cm
Reference: RBD-1980
Frequency: 30 MHz Tolerance: 20% Operating Temperature Range: -10°C to +60°C Storage Temperature Range: -20°C to +70°C
Reference: RBD-1176
Power supply: 90V~250V AC(50/60Hz) Max. Current: 10A Remote turn on/off connected device. Support checking real-time device status on APP. Support scheduled/countdown/loop timing tasks. Setting scene to turn on/off a group of devices in the same account. Setting scene to trigger on/off the other device by status changes
Reference: RBD-0409
No. of Channel: 4 Trigger Voltage: 5VDC Triode drive, increasing relay coil High impedance controller pin Pull-down circuit for the avoidance of malfunction Power supply indicator and Control indicator lamp Power supply and relay instructions, lit, the disconnect is off; The input signal, signal, common Terminal and start conducting; RoboticsBD Note:...
Reference: RBD-0960
Voltage range: 100-240V AC Color: White Remote Control Monitor Energy Usage Historical Energy Consumption Overload Protection Measure Power Usage for a Period Sync Status Timing Function Share Control Smart Scene APP Supported Check out New Product Sonoff POWR320D Elite Smart Power Meter Switch
Reference: RBD-1170
Made of high-quality material Suitable for cutting Aluminum and Copper Cuts wire up to a diameter of 3mm Fully Polished Well finished cutting edges
Reference: RBD-0697
Driver Chip: CH340G Supports all basic windows versions. The adapter plate integrated 1000μF solid capacitors to ensure the current supply The power supply will not be a problem to make WIFI module crashes unresponsive. Using 3225 SMD crystal oscillator, improve the stability of serial work, on a beautiful and tall. Working voltage: 4.5V – 5.5V (Onboard...
Reference: RBD-0814
The 2021 Model is Sonoff Basic R2 Support remotely turn on or off added devices. Support Max 8 timers tasks for each added device. Works with AMAZON ALEXA Works with GOOGLE ASSISTANT Also, Work with NEST Support numerous Wi-Fi smart switches one smartphone.
Reference: RBD-1016
Power Supply: 90-250V AC Max Current: 16A(2 gang),10A(1 gang) Max Power: 3500W(2 gang) / 2200W(1 gang) Product Dimensions: 114*52*32mm Color: White Frequency: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK
Reference: RBD-1145
Version 1.4 HDMI to micro HDMI cable Supports 480i ,480p, 720p, 1080i, 1080p, 1440p resolution Cable Length: 1.5m Color: Black Application: Mulitimedia
Reference: RBD-0814
The 2021 Model is Sonoff Basic R2 Support remotely turn on or off added devices. Support Max 8 timers tasks for each added device. Works with AMAZON ALEXA Works with GOOGLE ASSISTANT Also, Work with NEST Support numerous Wi-Fi smart switches one smartphone.
Reference: RBD-1016
Power Supply: 90-250V AC Max Current: 16A(2 gang),10A(1 gang) Max Power: 3500W(2 gang) / 2200W(1 gang) Product Dimensions: 114*52*32mm Color: White Frequency: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK
Reference: RBD-1017
Input: AC 100-240V 50/60 Hz 5A Output: Light: AC 100-240V 50/60 Hz 3A, Fan: AC 100-240 V 50/60 Hz 2A Max Rf Frequency: 433.92 MHz Turn on/off ceiling fan and light using your voice Support the RM433 RF to control devices (RM433 RF included) Share the device and manage it with your family together Display the real-time device status on the app Check out...
Reference: RBD-1343
Compatible With: AA, AAA, 9V Battery red light show the charging situation 9V Battery Charger
Reference: RBD-0836
Model: 14500 Type: Li-Ion Battery Mark Capacity: 850mah Nominal Voltage: 3.7v Color: Blue Weight: 17g Rechargeable Battery: Yes Note: It's a clone battery so the ampere couldn't be guaranteed.
Reference: 1141
১ টি রাস্পবেরি পাই 4 (Made in UK) RAM: 1GB, 2GB, 4GB, 8GB (পছন্দ করে নিতে পারবেন) একসাথে দুটি HDMI মনিটর লাগানো যায়। ১ টি কুলিং অ্যালুমিনিয়াম মেটাল ফ্যান কেস। রাস্পবেরি পাই এর হিট সিংক। রাস্পবেরি পাই এর ইউএসবি -সি পাওয়ার এডাপটার সুইচ সহ। ট্রান্সসেন্ড অথবা স্যানডিস্ক ব্রান্ডের জেনুইন ১৬ জিবি অথবা ৩২ জিবি মেমরি কার্ড প্রি-ইনস্টলড অপারেটিং সিস্টেম সহ।...
Reference: RBD-0916
ROHS approved Mini Solar panel The solar cells are encased and protected by a durable outer poly frame Polycrystalline silicon Max work voltage:5V Max work current: 200ma Dimension: 90mm×90mmx3mm RoboticsBD
Reference: RBD-0150
Output Power: 5mW Working Voltage: 3-3.3V DC Working temperature: -10 ℃~＋40 ℃ Housing material: Copper Working life: more than 2000 hours Spot mode: Dot Facula (continuous output) Laser wavelength: 650nm red-colored. Operating current: <40mA Power lead length: 120mm. 5V could damage the laser
Reference: RBD-0132
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. Model TCRT5000 Color Black + blue Detecting range: 0.591″ (15mm); Detecting method: Reflective; Collector-Emitter: Voltage:...
Reference: RBD-0133
830 Solder-less Points Ideal for Experimenting With Circuit Design In Labs Compatible with resistance, diodes, transistors, LED’s, Capacitors and other types of electronic components Colored coordinates for easy components placement. Accept a variety of wire sizes 20-29 AWG
Reference: RBD-0169
Flex length: 5.6 cm. Total Length: 2.2″ (7 cm). Life Cycle : >1 million. Height : 0.43mm (0.017″), Flat Resistance: 10K Ohms ±30%. Power Rating: 0.5 Watts.
Reference: RBD-180
Brand: SparkFun Electronics
Description: This is the same product as the Makey Makey Standard Kit. The difference is this version comes in fancy clamshell packaging meant for our distributors that need it. Regular customers are welcome to order, but we want to limit the amount of extra packaging finding its way into the trash heap.
Reference: RBD-0188
Logical light indication: a small light indicate CHO electrical level. Input feature: 5PF,100K Ohm. USB power supply; USB logic analyzer for monitoring, analyzing and debugging digital circuits 8-Channels USB logic analyzer with a 24Mhz sampling frequency Can analyze UART, IIC, and SPI, etc automatically Great for MCU, ARM system and FPGA development...
Reference: RBD-0227
Model: DC 5V 10mm 5N Rated Operating Voltage (VDC): 24 Operation Mode: Push-Pull (Normally Closed) Holding Force (N): 5 Weight:33 gm
Reference: RBD-0432
Iron Body Material High quality ultra-compact electric lock. RoboticsBD Rustproof, durable, safe, convenient to use. Suction which tightly sucks the iron, thus locking the door. Designed with the open frame type and mount board, high power. Easy to install for the electric door lock or other automatic door lock systems with the mounting board Applicable...
Reference: RBD-0189
Brand: DFRobot
Xbee Shield for Arduino (without Xbee) INTRODUCTION: The XBee Expansion Board is a compliant solution designed to meet low-cost, low-power wireless sensor networks with special needs.The module is easy to use, low power consumption, and the provision of critical data between devices reliable transmission.
