---
product_id: 729396830
title: "HT-21-2321"
brand: "yolink"
price: "₩16979751"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/729396830-ht-21-2321
store_origin: KR
region: South Korea
---

# HT-21-2321

**Brand:** yolink
**Price:** ₩16979751
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** HT-21-2321 by yolink
- **How much does it cost?** ₩16979751 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/729396830-ht-21-2321)

## Best For

- yolink enthusiasts

## Why This Product

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

## Description

HT-21-2321

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Part number | YS5706-UC |
| Item Weight | 60 g |
| Package Dimensions | 5.6 x 5.3 x 2.9 cm; 60 g |
| Batteries | 2 AAA batteries required. |
| Color | 0809-1-288 |
| Wattage | 7.2 W |
| Batteries Included | No |
| Batteries Required? | No |

## Product Details

- **Brand:** YoLink
- **Wattage:** 7.2 W
- **UPC:** 850024791053

## Images

![HT-21-2321 - Image 1](https://m.media-amazon.com/images/I/51VpINoEAPL.jpg)
![HT-21-2321 - Image 2](https://m.media-amazon.com/images/I/71y9jiP-sbL.jpg)
![HT-21-2321 - Image 3](https://m.media-amazon.com/images/I/61b11-Klp3L.jpg)
![HT-21-2321 - Image 4](https://m.media-amazon.com/images/I/71q863aCoML.jpg)
![HT-21-2321 - Image 5](https://m.media-amazon.com/images/I/61CtB5Nid5L.jpg)

## Questions & Answers

**Q: Does the relay inside have normally closed contacts that could be accessed? If not will you ever make a module with both NO and NC connections?**
A: The Yolink Relay's (internal) contacts are normally open. The only access to these contacts is via the 2 (screw) terminals that are labeled 'RELAY'.  The relay is programmable via the Yolink App. There are almost unlimited programming options available including Scheduling and automation.

**Q: Is there any issue to use such devices out of USA? like app country restriction?**
A: No, there is no restriction to use out of USA. Thanks!

**Q: When will the smart relay be available on Amazon again?**
A: It is still available!

https://www.amazon.com/dp/B08RBSPP4F?ref=myi_title_dp&th=1

**Q: I see the supply voltage is 5 to 24 vdc and device current draw is ≤ 60ma (on), ≤ 25ma (standby).  the current draw is at what supply voltage ?**
A: It is drawn at 5V DC input. Thanks!

## Frequently Bought Together

- YoLink Smart Relay, LoRa 1/4 Mile Long Range, Control via App, Fob, Alexa, Google, IFTTT, Max. 5 amps - YoLink Hub Required
- YOLINK LoRa Smart Outdoor Contact Sensor, Gate & Shed Door Sensor, Universal Contact-Closure Sensor, Email/SMS/Push Alerts, 1/4 Mile Range, Alexa, IFTTT, Home Assistant (Hub Required)
- YoLink LoRa Smart Outdoor Motion Detector Sensor, Driveway Alert, Property Invasion/Tresspassing Detector, 1/4 Mile Open Air Range, Email/SMS/Push Alerts, Alexa, IFTTT, Home Assistant (Hub Required)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/729396830-ht-21-2321](https://www.desertcart.kr/products/729396830-ht-21-2321)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-04-23*