The Best Serial Relay of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Serial Relay of 2022. Check our ranking below.
2,902 (random num) Reviews Scanned
Rank No. #1
12V 4Ch DB9 RS232 Relay Board Remote Control UART Serial Port Switch 4 Channel Relay Module for Car Motor
- EASY TO CONTROL: The remote control switch has "Read", "open", "close", "Self-locking" , click, interlock 6 commands, can satisfy most of the industrial control.
- FEMALE INTERFACE: The 4 channel relay board has RS232 DB9 female interface, with compact design, easy to carry and store.
- : This is 4 channel relay module, made of high quality meterial strong and , with good performance and long service life.
- VOLTAGE RANGE: The relay module has DC 12V power supply (voltage range 9-13v), can meet your requirement.
- PRODUCT PARAMETER: Standby current (all relays closed) 18MA, 1 channel relay open 50MA, 2 channel relays open 81MA, 3 channel relays open 110MA, 4 channel relays open 141MA.
Rank No. #2
NOYITO DC 5V 12V 24V 1-Channel RS232 Serial Port Control Relay Module Multi-Function Delay Timer USB PLC RS232 Computer Control Switch
- 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
Rank No. #3
R223C16 16-Channel Relay Board DB9 Relay Module Female Interface Serial Port Smart Module for Parallel Industrial Electronics
- 【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
Rank No. #4
Fafeicy 2-Channel Serial Port Relay Module, RS232 UART Protocol DB9 Interface, Manual Operation, Relay Switch Board, Copper Contacts, Normally Open
- 【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.
Rank No. #5
Global Caché GC-100-18R Network Adapter with 18-Inch Rack Mount Kit - Connects RS232 Serial, Relay, Infrared Devices and Smart Sensors to a Wired Ethernet
- PROVIDES MORE CONNECTIVITY - The Global Caché GC-100-18R offers an easy connection for your network-based IR, Sony Control-S, RS232 serial, sensors, and relay contact closures.
- OFFERS MORE CONTROL OPTIONS - The unit has 2 serial ports, 3 relay connections, and 6 independent IR output or sensor inputs. Conveniently switch on/off lights and contact closures with the GC-100-18R.
- PROVIDES AN OPEN NETWORK-BASED SYSTEM - It supports TCP, DHCP, and HTTP protocols allowing you to configure and manage sensor devices from a single server without operator intervention.
- INTEGRATES WITH AUTOMATED APPLIANCES SEAMLESSLY - The unit has an RJ-45 and 10 Base-T Ethernet for the network interface, which conforms with all types of Smart Controls and Monitoring environments.
- WORKS WITH VARIOUS CONTROL SOFTWARE - Remotely control serial, relay, infrared devices and sensors via MyURemote, tin:b Software, TouchControl, Touch Squid, Worried Cate Mote, iRidium, and more!
Rank No. #6
DC 12V 4 Channel Relay Board, DB9 RS232 Remote Control UART Serial Port Switch for Car Motor 8.5 x 4.7 x 1.8cm
- 【4 channel】 This is 4 channel relay module, 1 channel / 2 channel / 3 channel / 4 channel condition available.
- 【DC 12V+DB9 】 This relay adopted DC 12V power supply (voltage range 9-13v). RS232 DB9 female interface.
- 【fully function】 "Read", "open", "close", "Self-locking" , click, interlock 6 commands, meet your different purpose.
- 【current】 Standby current (all relays closed) 18MA, 1 channel relay open 50MA, 2 channel relays open 81MA, 3 channel relays open 110MA, 4 channel relays open 141MA.
- 【wide applications】 Four-channel serial port relays are often used in car kits and motor control, which can meet most industrial controls. Relay load voltage: DC 1-100V or AC85-265V, relay load current: maximum 10A. Dimensions: 90mmx47mmx19mm.
Rank No. #7
RS485 12V 1 Channel Relay Module MODBUS RTU serial multi-function relay module PLC Controller
- Six Working Modes:open, close, inching, self-locking, interlocking, delay.
- Two Command Control Mode :Under AT command,the maximum delay is 9999 seconds.Under MODBUS command,the maximum delay is 255 seconds.
- Input:AT command can be input by serial HyperTerminal (serial assistant) Enter,MODBUS command can be input by serial HyperTerminal (serial assistant) or Modbus Poll.
- Support Device:Under MODBUS command mode, it can support up to 32 devices in parallel.
- Working Voltage & Current:The Working Voltage is DC 12V,Working Current is 11-13mA Standby, one relay turn on 44mA
Rank No. #8
Global Cachà GC-100-12 Network Adapter - Connects RS232 Serial, Relay, Infrared Devices and Smart Sensors to a Wired Ethernet (12-Inch)
- 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.
Rank No. #9
NOYITO 2-Channel Micro USB Relay Module USB Smart Control Switch USB Intelligent Control Switch (2-Channel Micro USB)
- NOYITO 2-Channel Micro USB Relay Module is equipped with a stable USB to serial port chip and a microcontroller. It can use the serial port debugging software to send serial commands on the computer to control the opening and closing of the 2-channel relay.
- Onboard high performance microcontroller chip, CH340 USB control chip.With power LED indicator and relay status LED.On-board 2-channel 5V, 10A/250VAC, 10A/30VDC relay, long relay life, can work 100,000 times continuously.
- Module with overcurrent protection and relay diode freewheel protection.
- NOYITO 8-Channel Micro USB Relay Module ASIN：B09RGTSHHW . NOYITO 4-Channel Micro USB Relay Module ASIN：B09RGVQXXT
- NOYITO 5V 2-Channel Micro USB Relay Module User Manual, Documentation, Schematic https://1drv.ms/u/s!AlzQUCOyZQhKfnmId9Qnm2btrs8?e=38YgQq
SaleRank No. #10
JESSINIE USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home
- The LCUS-1 USB relay module is equipped with a USB to serial port chip with stable performance and a microcontroller. It can use serial port debugging software to send serial port instructions at the computer end to control the opening and closing of the 1-way relay.
- Protection function: The relay module has overcurrent protection and relay diode freewheeling protection function
- Relay: on-board 5V, 10A/250VAC, 10A/30VSC relay, with long service life and can be continuously closed for 100000 times
- LED indicator: onboard power LED indicator and relay status LED indicator
- Controller chip: on-board high-performance micro-control chip onboard CH340 USB control chip, without any driver, plug and play, easy to use
Last update on 2025-03-14 / Affiliate links / Images from Amazon Product Advertising API
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