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SainSmart 2-Channel Relay Module

4.6 4.6 out of 5 stars 333 ratings

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Relay Module
Connector Type /
Contact Material /
Contact Type /
Current Rating 10 Amps
Mounting Type /

About this item

  • 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current
  • Equipped with high-current relay, AC250V 10A ; DC30V 10A
  • Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
  • Indication LED's for Relay output status

What's in the box

  • 1 x SainSmart 2-Channel Relay Module
  • Product Description

    SainSmart 2-Channel Relay Module

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    PriceCurrently unavailable.$18.99$29.95$9.99$17.40$7.99
    Delivery
    Get it as soon as Monday, Mar 25
    Get it as soon as Monday, Mar 25
    Get it as soon as Monday, Mar 25
    Get it as soon as Monday, Mar 25
    Get it as soon as Monday, Mar 25
    Customer Ratings
    Value for money
    4.2
    4.6
    4.3
    4.5
    Easy to use
    4.2
    4.8
    4.1
    4.4
    Quality of material
    4.8
    4.7
    4.3
    Sold By
    CenryKay
    Digital Loggers Direct
    Teyleten Robot-US
    Electronics-Salon.
    SunFounderDirect
    contact type
    /
    Normally Closed
    Normally Closed, Normally Open
    max switch current
    10 amps
    10 amps
    10 amps
    10 amps
    10 amps
    12 volts
    250 volts
    30 volts
    coil voltage
    5 volts
    12 volts
    3.3 volts
    24 volts
    5 volts
    operation mode
    Automatic
    Automatic
    Automatic
    Automatic
    Motor
    Automatic

    Product information

    Technical Details

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    SainSmart 2-Channel Relay Module


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    From the manufacturer

    SainSmart 2-Channel 5V Relay Module

    This is a 5V 2-Channel Relay interface board, Be able to control various appliances, and other equipments with large current.

    It can be controlled directly by Micro-controller (Raspberry Pi, Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) .

    Features:

    - 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current.

    - Equiped with high-current relay, AC250V 10A ; DC30V 10A.

    - Indication LED’s for Relay output status.

    - It activates on low level.

    Package Content:

    • 1 x SainSmart 2-Channel 5V Relay Module

    From the brand

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    333 global ratings

    Customers say

    Customers like the performance, quality and ease of use of the relay. For example, they mention it works well, is well built and easy to program. Some appreciate the value for money. That said, they say it's perfect for use in an Arduino project and good for DIY projects.

    AI-generated from the text of customer reviews

    56 customers mention54 positive2 negative

    Customers are satisfied with the performance of the relay. They mention that it works well, has a rustic finish, and performs consistently. The input side of the board is working great and never gave them any trouble. It works as designed and has no problems. Some say that it's a fine device, well built, and reliable. Overall, most are happy with their purchase and recommend it to others.

    "...and setup may not be simple for a beginner, but once understood, it works well and is easy to control via the Arduino...." Read more

    "...In extended use the relay performed really well. It is durable lightweight and easy to wire.Pros:120V 10A switch rating...." Read more

    "Works perfectly for my small time-based projects (latest project, time-based doorbell)**NOTE (does not need a star removed for it)**..." Read more

    "Functions fine so far, but there is no way to use the two mounting holes on the screw terminal side with M3 nuts/bolts...." Read more

    46 customers mention42 positive4 negative

    Customers are satisfied with the quality of the relay. They mention that it is well-made, reliable, and easy to use. Some say that the board is okay, but it just isn't the right topology for switching. Overall, customers are happy with their purchase and recommend it to others.

    "The 2 pack relay is ideal for Arduino - the logic is backwards it seems but probably good from the stand point should a logic line fail, the relay..." Read more

    "...In extended use the relay performed really well. It is durable lightweight and easy to wire.Pros:120V 10A switch rating...." Read more

    "but it is a nice, cheap relay. You can use it to control low voltage or line voltage (i.e. switch a power outlet on and off) from an Arduino...." Read more

    "...Pros:Good Quality Board and Small and Compact form factorRelays are rated 5VDC and 10A @ 125 Volts..." Read more

    26 customers mention22 positive4 negative

    Customers find the relay easy to work with, setup, and use right out of the box. They say the instructions are easy to find and use with an arduino. Customers also mention that the relay is simple to solder and small enough to fix in a project box. Overall, customers are satisfied with the ease of use and recommend it to others.

    "...for a beginner, but once understood, it works well and is easy to control via the Arduino...." Read more

    "I have used 3 of these now, driven by an Arduino Uno. It's a pretty simple module to use...." Read more

    "This compact relay board is easy to interface to 3.3v microcontrollers, like those on wireless routers and Netduinos, with a little setup...." Read more

    "The relay module works and it is installed in a home automation project...." Read more

    22 customers mention22 positive0 negative

    Customers appreciate the value of the relay. They say it's a good inexpensive module that works excellent at a great price.

    "but it is a nice, cheap relay. You can use it to control low voltage or line voltage (i.e. switch a power outlet on and off) from an Arduino...." Read more

    "...Good Circuit. Good Price.For Arduino it works something like a REVERSE...." Read more

    "...Great quality and usefulness for the money!" Read more

    "...Overall, this relay board is a great low-cost solution for enabling Internet control of just about anything." Read more

    8 customers mention8 positive0 negative

    Customers find the relay module super handy, perfect for use in an Arduino project, and good for DIY projects. They also say it's a great little device and helps with controlling low voltage.

    "High quality, functions great and it's easy to work with. Perfect for Arduino projects among other things; and as previously mentioned it does..." Read more

    "Great little device, used it with my Raspberry Pi to control some low voltage signals to various devices...." Read more

    "Great product and great help with it. Sainsmart does have tutorials out there via wiki, instructables, and thinks like that." Read more

    "SainSmart makes a pretty smart relay module......" Read more

    7 customers mention7 positive0 negative

    Customers are satisfied with the size of the relay. They mention that it is compact, light weight, and easy to solder. Some say that it fits well for their projects, and the terminal block is still large enough to hold a standard lamp cord.

    "...Pros:Good Quality Board and Small and Compact form factorRelays are rated 5VDC and 10A @ 125 Volts..." Read more

    "...The terminal block is still large enough to hold a standard lamp cord.There is a clicking noise when they come on and off...." Read more

    "...a bit pricier than I needed to spend, but has two relays and fit well for my project. I'd have gone 5 stars if it was a little less expensive...." Read more

    "...Easy to setup and install, compact to fit. Worked out great!" Read more

    4 customers mention4 positive0 negative

    Customers like the status LEDs that come on when the relays are active. They say the indicator lights are awesome and easy to use.

    "...The indicator lights are awesome my biggest complaint is the strangeness of the relay...." Read more

    "...the sound of the relays, they are quite audible, indication lamps as to relay state is nice." Read more

    "...I like the status LEDs that come on when the relays are active...." Read more

    "Easy to use. LEDs show when relay on. Here is a sketch I used to test:..." Read more

    4 customers mention0 positive4 negative

    Customers are dissatisfied with the audio quality of the relay. They mention that it makes a very audible click when it switches state.

    "...When switching the relay does make a good bit of noise...." Read more

    "...this relay is mechanical and makes a very audible CLACK when it switches state. Keep that in mind depending on your application!-..." Read more

    "...There is a clicking noise when they come on and off. It's not overly loud, but it is audible...." Read more

    "...It is very audible when switched but that's ok. It is not something you can use as a dimmer though." Read more

    Top reviews from the United States

    Reviewed in the United States on March 13, 2012
    Pattern Name: Relay ModuleVerified Purchase
    Reviewed in the United States on January 4, 2012
    Pattern Name: Relay ModuleVerified Purchase
    3 people found this helpful
    Report
    Reviewed in the United States on July 28, 2016
    Pattern Name: Relay ModuleVerified Purchase
    2 people found this helpful
    Report
    Reviewed in the United States on July 20, 2021
    Pattern Name: Relay ModuleVerified Purchase
    Reviewed in the United States on October 4, 2011
    Pattern Name: Relay ModuleVerified Purchase
    15 people found this helpful
    Report
    Reviewed in the United States on April 1, 2023
    Pattern Name: Relay ModuleVerified Purchase
    Reviewed in the United States on October 2, 2011
    Pattern Name: Relay ModuleVerified Purchase
    2 people found this helpful
    Report

    Top reviews from other countries

    Translate all reviews to English
    Akash Deep Singh
    5.0 out of 5 stars Good quality relay and its 2 channel. Will buy again for future products.
    Reviewed in Canada on April 25, 2016
    Pattern Name: Relay ModuleVerified Purchase
    5.0 out of 5 stars 負論理での消費電流と起動時のデジタル出力「HIGH」の設定
    Reviewed in Japan on November 23, 2015
    Pattern Name: Relay ModuleVerified Purchase
    7 people found this helpful
    Report
    Greg Smith
    5.0 out of 5 stars Connecting to Raspberry Pi using 3.3V GPIO
    Reviewed in Canada on April 1, 2018
    Pattern Name: Relay ModuleVerified Purchase
    2 people found this helpful
    Report
    SHOOT_UP
    5.0 out of 5 stars raspberry pi GPIO出力 3.3V で使用可能
    Reviewed in Japan on January 1, 2016
    Pattern Name: Relay ModuleVerified Purchase
    2 people found this helpful
    Report
    Kindle Customer
    4.0 out of 5 stars Excellent product, but documentation would have been nice
    Reviewed in Canada on April 19, 2014
    Pattern Name: Relay ModuleVerified Purchase
    5 people found this helpful
    Report