---
title: "SainSmart Promo Codes"
description: "Promo Codes at SainSmart. Check for offers and shopping options on Refermate."
canonical_url: "https://staging.refermate.com/store/sainsmart/promo-codes"
md_url: "https://staging.refermate.com/store/sainsmart/promo-codes"
last_updated: "2026-10-09T17:14:23.277Z"
---
# SainSmart Promo Codes - 15% Off + Up to 0.84% Cash Back

- URL: https://staging.refermate.com/store/sainsmart/promo-codes
- Page: Promo Codes
- Store: SainSmart
- Featured current offer: 15% Off
- Current offers: 28 offers
- Store website: https://www.sainsmart.com
- Last refreshed: Friday, October 9, 2026

## Current Offers

### 1. Shop Online Store Specialized in Arduino Compatible Boards and Modules.
Type: Deal

### 2. 15% off
Type: Coupon code
Code: `GENMITSU15`
Description: 15% Off Storewide at SainSmart

### 3. 10% off
Type: Coupon code
Code: `ADBO4`
Description: 10% Off (Storewide) at SainSmart

### 4. 10% off
Type: Coupon code
Code: `ADBU3`
Description: 10% Off Storewide at SainSmart

### 5. 10% off
Type: Coupon code
Code: `ADB1M`
Description: 10% Off Storewide at SainSmart

### 6. 10% off
Type: Coupon code
Code: `ADBU2`
Description: 10% Off Storewide at SainSmart

### 7. 10% off
Type: Coupon code
Code: `ADB2M`
Description: 10% Off Storewide at SainSmart

### 8. 10% off
Type: Coupon code
Code: `ADBO6`
Description: 10% Off Storewide at SainSmart

### 9. 10% off
Type: Coupon code
Code: `ADBO5`
Description: 10% Off Storewide at SainSmart

## About SainSmart

SainSmart is a US-focused ecommerce retailer selling maker and DIY electronics, CNC/laser equipment, and 3D printing gear and accessories for hobbyists and small workshops.

## Frequently Asked Questions

### 1. How many SainSmart promo codes are available right now?
SainSmart currently has 28 current offers listed. Availability and terms can change, so check the offer details before checkout.

### 2. What is a current featured offer at SainSmart?
One current featured SainSmart offer is "15% Off". Availability and terms can change, so review the offer details before checkout.

### 3. Does SainSmart offer cash back?
Yes, you can earn up to 0.84% cash back on eligible SainSmart purchases through Refermate. The offer and cash back terms determine whether a promo code can be combined with it.

### 4. How do I use a promo code at SainSmart?
When a code is listed, copy it from this page, add your items to your SainSmart cart, and paste the code in the promo code field at checkout. Check the offer terms to confirm the discount applies.

### 5. When was this SainSmart promo codes page updated?
Refermate updates this page when its SainSmart offer or store data changes. Check the current offer details before shopping.

## Explore More

- Site map: https://staging.refermate.com/sitemap.md
- Store sitemap: https://staging.refermate.com/stores/sitemap.md
- Store directory: https://staging.refermate.com/stores