SKU: 25487929954

8/30-Channel Ethernet Relay Module Modbus TCP Protocol Poe Ethernet Communication

$46.59 $51.77
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Description

8/30-Channel Ethernet Relay Module Modbus TCP Protocol Poe Ethernet CommunicationIndustrial 8 30 Channel Ethernet Relay Module Modbus RTU TCP Protocol Poe Ethernet Communication 8 Way Ethernet Relay Module: Description: This product is an 8 way relay module controlled by Ethernet interface specially designed for industrial environment applications. It adopts Modbus RTU Modbus TCP protocol, supports PoE network port power supply, and ABS rail housing design. This product is easy to operate, with the characteristics of fast

Industrial 8/30-Channel Ethernet Relay Module Modbus RTU/TCP Protocol Poe Ethernet Communication

8-Way Ethernet Relay Module:
Description:
This product is an 8-way relay module controlled by Ethernet interface specially designed for industrial environment applications. It adopts Modbus RTU/Modbus TCP protocol, supports PoE network port power supply, and ABS rail housing design. This product is easy to operate, with the characteristics of fast communication speed, stability, reliability and safety, and can be applied to various industrial control equipment or applications with high communication requirements.

Features:
It has flash-on and flash-off functions, and can control the relay to open for a period of time and automatically close through instructions
Support DC 7~36V wide voltage power supply, support PoE Ethernet power supply
Support control of relays through MQTT protocol, and provide Alibaba Cloud MQTT application routines
Onboard optical coupler isolation to avoid interference from relay high-voltage circuit
Onboard anti-reverse connection circuit to avoid reverse connection of positive and negative poles and burnout of circuit
Use high-quality relays, allowing access to loads: ≤10A 250V AC or ≤10A 30V DC
Rail-type ABS protective housing, easy to install and use, safer with housing
External 4 LED indicators and network port indicators, you can easily view the MCU status and signal receiving and sending status

Specifications:
Power supply: PoE network port, DC 5.5*2.1 power interface or terminal block (7~36V)
Communication interface: PoE network port, support IEEE 802.3af standard
Number of relays: 8
Contact type: one normally open, one normally closed
Contact load: ≤10A 250V AC or ≤10A 30V DC
Modbus protocol: Modbus RTU protocol or Modbus TCP protocol
Indicator:
RUN: Network port operation indicator, flashes in a 2-second cycle after the chip works normally
STA: MCU indicator, flashes when the MCU works normally
TXD: Send indicator, the light is on when sending data
RXD: Receive indicator, the light is on when receiving data

30-Way Ethernet Relay Module:
Description:
This product is an industrial 30-ch relay module controlled via Ethernet port, adopts Modbus RTU/Modbus TCP protocols, supports PoE power supply, also comes with an ABS rail-mount case.
The Modbus POE ETH Relay 30CH is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirements.

Features:
Features flash-on,flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically
Supports DC 7~36V wide range power input and PoE power supply
Supports relay control through MQTT protocol, comes with Alibaba Cloud MQTT application demo
Onboard Optocoupler isolation, prevent the relay from being interfered by high- voltage circuit
Adopts dedicated relay driver chip, with built-in flyback diode rotection, for stronger and more stable driving ability
Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
High quality relay, contact rating: ≤10A 250VAC/30VDC
Rail-mounted ABS plastic enclosure, easy to install, safe to use
4 LEDs and Network indicators for indicating the MCU status and signal transceiving status

Specifications:
Power supply: PoE network port, DC 5.5*2.1 power interface or terminal block (7~36V)
Communication interface: PoE network port, support IEEE 802.3af standard
Number of relays: 8
Contact type: one normally open, one normally closed
Contact load: ≤10A 250V AC or ≤10A 30V DC
Modbus protocol: Modbus RTU protocol or Modbus TCP protocol
Indicator:
RUN: Network port operation indicator, flashes in a 2-second cycle after the chip works normally
STA: MCU indicator, flashes when the MCU works normally
TXD: Send indicator, the light is on when sending data
RXD: Receive indicator, the light is on when receiving data

Applications:
Industrial Control
Valve control, pump station control, unattended industrial control system
Smart Home
Controlling appliances like air condi-tioner, access control, purifier, water heater, etc.
Smart Agriculture
Controlling door curtain motor, air blower, etc.
Breeding & Farming
Controlling ventilator, lighting, water supply, feeding system, etc.

Specifications:
RUN: Ethernet port indicator, blinking when Ethernet port normally working
STA MCU indicator, blinking when the MCU normally working
TXD: TX indicator, lights up when sending data
RXD: RX indicator, lights up when receiving data
ETHERNET PORT GREEN INDICATOR: Lights up when the connection is established
ETHERNET PORT YELLOW INDICATOR: Data activity indicator, blinking when transmitting data

Package Include:
Option1:
1x 8-Way Ethernet Relay Module
Option2:
1x 30-Way Ethernet Relay Module

Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 25487929954

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4.9 ★★★★★
Based on 986 reviews
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Verified Purchase
Dylan Rohrer
Lake Worth, US
★★★★★ 5
Precise and durable
Color: Birch
Best coffee scale for the price. No crazy features which makes it very easy to use. Small enough to store in a drawer and durable enough to not worry about it breaking. Scale is very precise which makes it great for V60 and Chemex
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
J
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Jenn
Port Orchard, US
★★★★★ 5
Great Coffee Scale
Color: Onyx Black, Color: Onyx Black
Absolutely love this coffee scale! For starters it was so well packaged. It is definitely worth what you pay for it. It has a silicon removable mat that fits snugly over the top of the scale. That makes it easy to pop it off to clean if you spill on it. The scale responds instantly to changes in weight which helps to give you accurate pour over results every single time. The scale also includes a built-in timer with a count-up or down control. It also has an auto shutoff but gives you plenty of time before it shuts off. There are multiple units to choose from when measuring. Overall just a really great scale and I'm so glad I purchased it!
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Reviewed in the United States on April 9, 2026
S
Verified Purchase
Spiky
Cuba, US
★★★★★ 4
great scale (read tips for its super sensitivity)
Color: Onyx Black, Color: Onyx Black
in hopes this will help anyone else who bought this scale- this thing is super sensitive to vibrations. if your scale is getting off calibration for seemingly no reason, make sure the sides and the back aren’t touching anything else and that the bottom is on a flat surface and it will fix it entirely, trust me!! but aside from that, this scale works absolutely perfectly. it’s just the right size for my morning coffee, has great battery life, and is really straightforward to use. plus the silicone top makes it really easy to clean and looks nice on my countertop. the timer is super convenient for making coffee, this is an amazing scale for this price point
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 13, 2025
S
Verified Purchase
SW
Natrona Heights, US
★★★★★ 5
1 year review: Excellent coffee scale
Color: Onyx Black
I bought this about a year ago and have used it daily ever since. The scale is easy to read, fast to update, and is precise. My previous coffee scale cracked from the repeated heating from my v60 carafe even with a silicone pad within 6 months. This scale has endured and I'm quite happy with it's durability. It's accurate and precise enough I actually use it with my bread machine as well. It's a nice, low weight scale overall. Cleaning is fairly easy, I just wipe down with a damp cloth. You can pull the silicone pad off and wash it more thoroughly if you want. My only down side is that I find the batteries drain a little quickly. My normal kitchen scale can last years on a button battery, while I usually have to replace the batteries here every 6 months. I don't use the scale for more than 3-4 minutes at a time daily and once or twice a week a second time per day, and whether the battery life is due to the brightness of the display or the polling frequency of the scale, it's a minor enough quibble to not ding it's rating. It's not a cheap scale, but it appears to be one of those "buy once for a long time" investments. If you're serious about coffee dosing and measuring your water for pour over, it's easy to recommend.
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Reviewed in the United States on July 7, 2025
J
Verified Purchase
Julia G
West Palm Beach, US
★★★★★ 5
Excellent coffee scale!
Love this scale! The display is pleasing, high-contrast and very clear. It has a silicone cover, and there are zero gaps around the screen and buttons, so it's easily cleaned and I don't worry about damaging the internals with water or crumbs. There is a tiny bit of float, typically less than a gram, and only occasionally. For example, I'll weigh out 19.3g of beans, seal the bag, and come back to 18.9g. It's minor enough and infrequent enough that it doesn't concern me at all. The readout is quick and responsive, and I love the timer. At first it seems a little confusing to switch between counting up and counting down, but after doing it once I have no trouble with it even half-asleep. Just hold the units button, press it again to change between modes, and use power & tare to set minutes and seconds if counting down (use play/pause to confirm each setting). Takes less than 10 seconds. Overall it's quick, accurate, and well-made. I love that it has a much smaller footprint than my old kitchen scale, and looks sleek on the counter. Perfect addition to my coffee station! I also highly recommend their gooseneck kettle if you're in the market ☕
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Reviewed in the United States on March 7, 2025

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