Contents
The Best Serial Relay of 2023 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Serial Relay of 2023. Check our ranking below.
2,996 Reviews Scanned
- This relay module board's working voltage is DC 12V and standby current is11mA.Under the MODBUS command mode, this relay module can support up to 64 devices in parallel.
- MODBUS commands can be made serial HyperTerminal (serial assistant) or "Modbus Poll" enter,and MODBUS RTU command control mode, the maximum delay is 255 seconds.
- MODBUS command mode (HEX), you can control a variety of ways: Serial Hyper Terminal Control (need to manually add the CRC), Modbus Poll software control (software automatically add the CRC), PLC or MCU process control.
- This relay module has 6 commands: "Open", "close", "Momentary", "Self-locking", "Interlock" and "Delay".
- We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel to us at any time.
- Supply voltage: DC 5V 12V 24V ( 5 - 24V).
- Communication chip: MAX232.
- Communication protocol, format: Serial port 232 communication, the protocol is very simple, use the serial port debugging software to send the character type "A" relay to open, send the character type "a" relay to close.
- Communication format: (9600, 8, NONE, 1).
- Baud rate: 9600, 8 bits, no parity, 1 stop bit
- 【High Quality】The onboard 2 relay is made of high quality plastic meterial, , which can be accessed extended 2‑way relay module, has good performance.
- 【Easy to Operate】The serial control relay switch board has simple , most serial commands are single‑byte commands, can improve work efficiency, save time and energy.
- 【Stability】The relay switch board has capacitor filter circuit, which has improved stability, with two‑channel, plus two expansion ports, low‑level output.
- 【Feature】The 2 channel relay switch board is compact design, easy to carry and store, very practical in work, built to meet standard specification, can bring you more convenience.
- 【Quality Assurance】The serial relay switch is manufactured under strict quality control and standard requirements, and has a high safety factor, so it can be used with confidence.
- 【SIMPLE CONTROL】Simple operation, simple instruction, 8 working modes of opening, closing, inching, self-locking, interlocking, delay, full opening and full closing (8-byte instruction without delay mode)
- 【LOW DELAY 】Relay board has the advantage of low delay, at command and 8-byte command. The two commands are recognized automatically without switching. The maximum delay under at command is 9999 seconds
- 【EXCELLENT PERFORMANCE】This intelligent module uses 16 channel relay module, multi-channel control, RS232 DB9 female interface, convenient and practical, can let you have a good sense of experience, worthy of your trust
- 【SPECIFICATION】Power Supply: DC 12V power supply (voltage range 9-13V), Standby Current: 18MA, Interface: RS232 DB9 female interface, Two Types Of Instructions: AT and 8-byte instructions. The two types of instructions are automatically recognized without switching., Maximum delay under AT command is 9999 seconds, Size: Approx. 172 x 65 x 19mm / 6.8 x 2.6 x 0.7in, Weight: 228 g / 8 oz(approx.)
- 【APPLICATION】Relay board is widely used in elevator, automobile, automation equipment, subway, aviation, coal mine, military equipment (tank, missile, etc.), as long as it can be used in the place of automation, it can basically use relay
- CONNECTS WITH MORE AUTOMATED DEVICES - The Global Caché GC-100-12 provides an easy connection for network-based IR, RS232 serial, Sony Control-S, sensors, and relay contact closures.
- CONTROLS VARIOUS ELECTRONIC DEVICES - It has 2 serial ports, 3 relay connections, and 6 independent IR outputs/sensor inputs. Conveniently switch on/off lights and contact closure with the GC-100-12.
- OFFERS AN OPEN NETWORK-BASED SYSTEM - This network adapter supports TCP, DHCP, and HTTP protocols so you can configure and control diverse systems, e.g., entertainment and security.
- PROVIDES CONVENIENT WIRED CONNECTIVITY - The GC-100-12 has an RJ-45 and 10 Base-T Ethernet for TCP/IP network interface. It integrates with all types of Smart Controls and Monitoring environments.
- WORKS WITH POPULAR CONTROL SOFTWARE - You can also use various control softwares including Creston, Extron, and Dukane ConVA with the GC-100-12 to remotely control DVR/VCR, AV equipment, lighting, and even irrigation.
Last update on 2025-07-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
How Do You Buy The Best Serial Relay?
Do you get stressed out thinking about shopping for a great Serial Relay? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Serial Relay, which is why we have assembled a comprehensive list of the greatest Serial Relay available in the current market. We’ve also come up with a list of questions that you probably have yourself.
We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Serial Relay that you consider buying. Your questions might include the following:
- Is it worth buying an Serial Relay?
- What benefits are there with buying an Serial Relay?
- What factors deserve consideration when shopping for an effective Serial Relay?
- Why is it crucial to invest in any Serial Relay, much less the best one?
- Which Serial Relay are good in the current market?
- Where can you find information like this about Serial Relay?
We’re convinced that you likely have far more questions than just these regarding Serial Relay, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.
Potential sources can include buying guides for Serial Relay, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Serial Relay. Make sure that you are only using trustworthy and credible websites and sources.
We provide an Serial Relay buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Serial Relay currently available on the market.
This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:
- Brand Value: Every brand of Serial Relay has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an Serial Relay?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your Serial Relay.
- Customer Ratings: Number ratings grade Serial Relay objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Serial Relay.
- Product Quality: You don’t always get what you pay for with an Serial Relay, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an Serial Relay is should be an indication of how long it will work out for you.
We always remember that maintaining Serial Relay information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.
If you think that anything we present here regarding Serial Relay is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.
FAQ:
Q: How are serial relays used to control electronics?
A: Our Serial Relay Controllers are the simplest and most reliable way to control electronics. Connect the RS-232 Module on the board to your computer or ECM. You can do this using a standard Serial Port or you can use a Serial to USB converter. Once its connected you can simply open a Serial Port (COM Port on Windows) and start 2-way communications.
Q: What kind of contact does a relay have?
A: Each relay has a normally open contact, a normally closed contact and a common contact. When relay absorps, the common contact and normally open contact conduct; when the relay releases, public contact and normally closed contact conduct.
Q: Why are RS-232 Relays still around after 50 years?
A: RS-232 Relays are the ultimate in reliability. There is a reason Serial Communications are still around after 50 years and that is because they’re basically bulletproof. Our industrial grade relay controllers all come equipped with a swappable communication interface.
Q: How to connect a serial controller to a computer?
A: Connect the RS-232 Module on the board to your computer or ECM. You can do this using a standard Serial Port or you can use a Serial to USB converter. Once its connected you can simply open a Serial Port (COM Port on Windows) and start 2-way communications. NCD Offers a wide range of Relay Controllers that may be equipped with s serial interface.