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Description
Industrial Modbus RTU 8-ch Relay Module, RS485 BusThis is an industrial 8 ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetic isolation, and TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU Relay is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipment and or applications with high communication
This is an industrial 8-ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetic isolation, and TVS diode, etc. It also comes with an ABS enclosure.
The Modbus RTU Relay is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipment and/or applications with high communication requirement.
Features
- Configurable device address (1~255), multi devices can be cascaded on RS485 bus
- 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
- Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
- Onboard unibody ADI magnetic isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
- Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning proof & anti-electrostatic
- Onboard Optocoupler isolation, prevent interference from external high-voltage circuit connected to the relay
- 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
- 3 LEDs for indicating the MCU status and signal transceiving status
Specifications
- Power supply voltage: 5V
- Communication interface: RS485
- Baudrate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
- Default communication format: 9600, N, 8, 1
- Relay channels: 8
- Contact form: 1NO 1NC
- Communication protocol: Standard Modbus RTU protocol
- RS485 address: 1~255
- RS485 terminal protection: 600W lightningproof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads)
-
LED indicators:
- STA: MCU indicator, keep flashing when the MCU normally working
- TXD: TX indicator, light up when sending data
- RXD: RX indicator, light up when receiving data
Resources
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Easy installation
Size: 26"+16"(Top Lock)
Perfect fit and just in time. Went to 4 places and no one has this style. As good as the dealer and a third of the price. Very happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Much higher quality then I ever expected at a great price
Size: 26"+17"+14"B(U/J Hook)
Perfect fit on my 2023 Mazda 3, they look and install exactly like the original OEM wipers but Mazda 3 can be a little tricky to install but if you search on the internet you will find plenty of helpful videos.
They work really well without streaking or noise.
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Excellent front wipers, rear slightly shorter than expected
Size: 22"+21"+11"(U/J Hook), Size: 22"+21"+11"(U/J Hook)
I purchased the 22", 21", and 11" windshield wiper blade set for my 2017 Jeep Grand Cherokee. The front windshield wipers (22" and 21") work perfectly—smooth, quiet, and they clean the glass very well with no streaks.
Regarding the rear wiper (11"), it does work properly and gets the job done. However, it is slightly shorter than the one I previously had installed. To be fair, I did not measure my old rear wiper, but it appears the one on my vehicle was a 12" blade, even though this listing specifies 11".
Overall, I’m satisfied with the performance, especially for the front wipers. Just keep in mind that the rear blade may be shorter than what you currently have installed, depending on your setup.
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Nice wipers
Size: 26"+16"+12"D(U/J Hook)
I got the right ones. Checked and checked again.
For my husband's subaru crosstrek. The front ones fit perfect. Installed super easy. Work nicely. Had alot of rain to check them out recently.
Now the back one. Does not fit. Not sure what is wrong with it, but 2 out of 3 is good.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Finally, no more streaking and squeaking.
Size: 26"+16"(Top Lock)
Bought these a few months ago for my boyfriend’s car. It was for the purpose of replacing the OEM model that initially came with the car, as the squeaking was driving me nuts. Matching the pair to his car’s make and model here on Amazon was easy. The installation was easy as well, as they simply lock in with no difficulty for me. And they look fine as well. They’ve held up the last few months in the bitter winter here in the northeastern seaboard with no issues. No squeaking, streaking, or scraping. The material seems sturdy and of good stability, not flimsy. Definitely directing him to buy this brand again when they eventually need changed out.
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Reviewed in the United States on April 29, 2026
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