---
product_id: 293431535
title: "SainSmart 16-Channel Relay Module"
brand: "sainsmart"
price: "AR$90450"
currency: ARS
in_stock: true
url: https://www.desertcart.com.ar/products/293431535-sainsmart-16-channel-relay-module
store_origin: AR
region: Argentina
---

# 16 Channels LED Status Indicators AC/DC Compatibility SainSmart 16-Channel Relay Module

**Brand:** sainsmart
**Price:** AR$90450
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Your Projects with Precision!

## Quick Answers

- **What is this?** SainSmart 16-Channel Relay Module by sainsmart
- **How much does it cost?** AR$90450 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/293431535-sainsmart-16-channel-relay-module)

## Best For

- sainsmart enthusiasts

## Why This Product

- Trusted sainsmart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High-Current Handling:** Power up to 10A AC and 12A DC, perfect for heavy-duty applications.
- • **Microcontroller Friendly:** Seamlessly integrates with popular microcontrollers like Arduino and ARM.
- • **Real-Time Status Updates:** LED indicators keep you informed of relay output status at a glance.
- • **Compact and Efficient Design:** Space-saving module that fits perfectly into any project setup.
- • **Unleash Your Automation Potential:** With 16 channels at your fingertips, control multiple devices effortlessly.

## Overview

The SainSmart 16-Channel Relay Module is a versatile 12V interface board designed for high-current applications, featuring 16 channels that can be controlled by various microcontrollers. With robust AC and DC compatibility and LED indicators for real-time status, this module is perfect for both hobbyists and professionals looking to enhance their automation projects.

## Description

sainsmart

## Features

- 12V 16-Channel Relay interface board, and each one needs 15-20mA Driver Current
- Equipped with high-current relay, AC250V 10A ; DC30V 12A
- Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP433, TTL logic)
- Indication LED's for Relay output status

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0057OC66U |
| Best Sellers Rank | #2,094 in Single Board Computers (Computers & Accessories) |
| Brand | SainSmart |
| Coil Voltage | 12 Volts |
| Connector Type | Through Hole |
| Contact Current Rating | 12 Amps |
| Contact Material | Silver |
| Contact Type | Normally Open |
| Current Rating | 10 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (619) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.4 ounces |
| Item model number | 101-70-103 |
| Manufacturer | SainStore Inc. |
| Manufacturer recommended age | 1 - 1 months |
| Maximum Switching Current | 12 Amps |
| Maximum Switching Voltage | 250 Volts |
| Minimum Switching Voltage | 12 Volts |
| Mounting Type | PCB Mount |
| Operation Mode | Automatic |
| Product Dimensions | 8 x 5.7 x 1.19 inches |
| Release date | May 6, 2018 |
| UPC | 796793392285 |
| Wattage | 144 watts |

## Product Details

- **Connector type:** Through Hole
- **Contact type:** Normally Closed
- **Current rating:** 10 Amps
- **Mounting type:** Surface Mount or DIN Rail Mount
- **Brand:** sainsmart

## Images

![SainSmart 16-Channel Relay Module - Image 1](https://m.media-amazon.com/images/I/71iAO6BUk9L.jpg)

## Questions & Answers

**Q: Does anyone know if this is compatible with raspberry pi model b?**
A: I bought this board specifically to work with the Raspberry PI. I've futzed with it for hours and the complete lack of documentation makes it very hard to get it up and running. Through trial and error though I've found the following setup works:1) Hook up the pair of screw terminals (in blue plastic) to an external 12v power supply2) Hook up the 3.3v out on the RPi (pin 1) to the 5v pin on the relay board (I know, this doesn't make sense)3) Hook up any GPIO pin to any of the 16 input pins on the board4) Toggle the GPIO pin using your favorite method5) The relay will toggle nowWhat threw me was using the 3.3v on the RPi instead of the marked 5v. That is very confusing labeling. It's also unfortunate that this board requires a 12v supply which can't come from the RPi but must be applied externally. My project, happened to have one so I was lucky. I hope this information helps. It would be so easy for SainSmart to offer this on their website and help out alot of folks having trouble.

**Q: What there are two power inputs? (Low level inputs (5V) and blue port (12V)). Do I need to connect both?**
A: The board takes 12V input to operate.   I use a at least 1-2 amp power supply and that connects to the 12V inputs.   There is a 5V OUTPUT on the board which is convenient and can be used to power something like an Arduino.  Which is what I do.

**Q: I have an application where the output voltage to switch the contacts is 12 volts, will the inputs tolerate this or will I need to add resistors?**
A: Yes, it will.  I have this hooked up to some led work lights in a store display.  40 of them.  Power the board with 12v at the 2 screw terminals, and use your switched outputs directly to the low level inputs and it will switch on the relays.  Pretty simple.,

**Q: Are there diodes across the relay coils?**
A: Yes, they light up when the relay is on

## Frequently Bought Together

- SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM
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**Shop now:** [https://www.desertcart.com.ar/products/293431535-sainsmart-16-channel-relay-module](https://www.desertcart.com.ar/products/293431535-sainsmart-16-channel-relay-module)

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-21*