Ethernet Relay Board 16 32 Channel ESP32 WIFI MQTT Home Assistant Domoticz OpenHAB Digital Input Smart Switch

14 reviews
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Product Details

Relay board function instruction as below, any questions, please contact us

ETHWiFi means support Ethernet and WIFI

ETHWiFi RS485 means support Ethernet, WIFI and RS485

ETHWiFi CAN means support Ethernet, WIFI and CAN bus

Support Customized and develop by our company

User manual and programming manual SDK:

//www.dingtian-tech.com/sdk/relay_sdk.zip

Notes: it is finished relay board, don’t support flash your own firmware. If you want to flash firmware, please contact us

Specification

Parameter

DT-R002

DT-R004

DT-R008

DT-R016

DT-R032

Photo

Interface

RJ45, WiFi, RS485, CAN, Wiegand(optional)

Size(Relay Board)

87*68mm

91.6*86.4mm

122*87mm

250*107mm

370*107mm

Size(DIN35 Case)

90*90*40mm

115*90*40mm

145*90*40mm

252*123*43mm

373*123*43mm

Power Supply

12V/24VDC, 5V/24VAC

Power Adapter

12VDC/1.5A

12VDC/1.5A

12VDC/1.5A

12VDC/2A

12VDC/3A

Power Consumption

2W

3W

5W

9W

16W

Working Temperature

-20~75℃

Storage Temperature

-40~80℃

Protocol

MQTT, Modbus-RTU/TCP/UDP/ASCII, TCP, UDP, HTTP GET CGI, CoAP

Quantity Relays

2DO

4DO

8DO

16DO

32DO

Quantity Digital Input

2DI

4DI

8DI

16DI

32DI

Quantity Wiegand

1(optional)

1(optional)

0

1

1

RTC

NO

NO

NO

Optional

Optional

Home Automation

Domoticz, Home Assistant, openHAB, Red-Node

Function

IP Watchdog, Task, NTP Client, Input mutual control, OTA Upgrade

Ethernet IP

192.168.1.100

Web User/PWD

admin/admin

WiFi AP IP

192.168.7.1

WiFi AP SSID/PWD

dtrelaySN/dtpassword

WiFi STA IP

192.168.1.97

Support Domoticz/ Home Assistant/ openHAB

Note:

Please keep your computer ip is the same NETWORK SEGMENT as our default ip 192.168.1.100

Item Specifics
Brand Name:
DT
Power Source:
DC
Power Source:
DC
Origin:
Mainland China
Communication method:
Other
High-concerned chemical:
None
Inbox adaptor:
No
Compatibility:
others
State of Assembly:
Ready-to-Go
Certification:
CE
Camera Equipped:
No
Model Number:
DT-R016/DT-R032
home automation system:
domoticz,home assistant,openHAB,Red-Node
Interface:
ethernet,wifi,rs485,CANbus,wiegand
protocol:
MQTT,HTTP GET,CoAP,dingtian string,dingtian binary
Function:
relay task, IP Watchdog, OTA Upgrade
Power supply:
12VDC/24VDC, 12VAC/24VAC
Chip:
ESP32
case type:
DIN35
Reviews
(14)
Write a Review
Verified Buyer
Г***ч
3 Mar 2026 00:00

отличный экземпляр. все входы выходы работают. с home assistant завелся без проблем. при включение всех 32 реле потребляет 15+ Вт

Verified Buyer
Customer
22 Jan 2026 00:00

nice quality PCBs. DTwonder is using Para rex, a reliable and competent delivery services, much much faster than the usual unreliable Mail Americas. And tech support is truly excellent. fast and accurate. I now own several of the 4, 8 and 16 relay boards to meet my needs. my only recommendation would be to provide space on the PCB for the Snubber RC components. adding them to the screw terminal is tedious.

Verified Buyer
Т***ч
12 Dec 2025 00:00

Очень хорошее изделие, продавец даже модифицировал прошивку для моих задач. Пришло все хорошо упакованное. Обновил прошивку модифицированную продавцом и все настроил. Все работает как я и хотел. Возможности у оборудования очень широкие, буду применять еще.

Verified Buyer
D***o
11 Dec 2025 00:00

ottimo prodotto

Verified Buyer
F***a
22 Nov 2025 00:00

It looks good, I have not tried it yet.. but I am confident

Verified Buyer
m***i
28 Jul 2025 00:00

ok

Verified Buyer
Ф***ч
29 Jun 2025 00:00

Отличное реле, закрывает 110% моих потребностей на автоматизацию освещения

Verified Buyer
A***o
11 May 2025 00:00

received . very fast delivery . second time i buy it . very satisfied . very professional function

Verified Buyer
A***i
4 May 2025 00:00

Packed very well. Didn't try it yet. I'll post an additional review after trying it.

Verified Buyer
P***i
12 Mar 2025 00:00

Perfect description, manual, the seller responds very quicky. I recommend

Verified Buyer
K***s
2 Mar 2025 00:00

Just arrived second one :)

Verified Buyer
H***k
21 Feb 2025 00:00

Super werkt perfect

Verified Buyer
S***k
18 Feb 2025 00:00

Беру не вперше. все супер.

Verified Buyer
m***y
9 Feb 2025 00:00

works perfect

Shipping & Payment

SHIPPING

We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have been shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.

RETURNS

Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.

Refunds

Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Wassally Store (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.

Exchanges

If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Why Buy From Us

A few reasons why buy from us:

SAFE SHOPPING

We try our best to make your shopping experience not only pleasant, seamless and hassle-free, but also secure.

FREE SHIPPING

Enjoy flexible international shipping services that currently operate in over 200 countries across the world.

FREE RETURNS

It's okay to change your mind! You can send your order back for a full refund, we've got you covered with our full Buyer protection.

NEW ARRIVALS

Brand new products are available on a regular basis.

PRICE PROMISE

We don't want you to choose between the best value and the best service. That's why we offer competitive pricing.

EXCELLENT CUSTOMER SERVICE

Knowledgeable and professional support team is always happy to help you.

EASY TRACKING

Check your order status online. As easy as that!

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