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Signal Input Module

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Siemens 6es74211EL000AA0 Simatic S7-400 Sm421 Digital Input Module 16di 120VAC

Siemens 6es74211EL000AA0 Simatic S7-400 Sm421 Digital Input Module 16di 120VAC

US $ 922-1,050 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
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B&R X20ai1744 PLC Analog Input Module for Industrial Automation Applications

B&R X20ai1744 PLC Analog Input Module for Industrial Automation Applications

US $ 300 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
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Industrial Expansion Board 6es7223-3bd30-0xb0/6es7231-4ha30-0xb0/6es7231-5PA30-0xb0 Digital Control Module for Automation Systems

Industrial Expansion Board 6es7223-3bd30-0xb0/6es7231-4ha30-0xb0/6es7231-5PA30-0xb0 Digital Control Module for Automation Systems

US $ 45 / Piece FOB
10 Pieces (MOQ)
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Shenzhen Seg Technology Co., Ltd

Fujian, China Since 2026
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Versatile Signal Isolation Module for Accurate Temperature Readings PT100 Input / PT1000 Input

Versatile Signal Isolation Module for Accurate Temperature Readings PT100 Input / PT1000 Input

US $ 113.55-126.99 / Piece FOB
2 Pieces (MOQ)
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Shenzhen Weijunrui Technology Co.,Ltd

Guangdong, China Since 2025
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Siemens Sm 326 Fail-Safe Digital Input Module 6es7326-1bk02-0ab0 24di 24VDC Sil3 S7-300

Siemens Sm 326 Fail-Safe Digital Input Module 6es7326-1bk02-0ab0 24di 24VDC Sil3 S7-300

US $ 500-1,000 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
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Fireye Mep237 Programmer Module Microm Series Control Burner Flame Safeguard Combustion Control Module Boiler Burner Controller Mep237 Control Unit Burner Sequ

Fireye Mep237 Programmer Module Microm Series Control Burner Flame Safeguard Combustion Control Module Boiler Burner Controller Mep237 Control Unit Burner Sequ

US $ 145 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Shenzhen Zhongliweiye Electromechanical Equipment Co., Ltd.

Manufacturer/Factory & Trading Company

Guangdong, China Since 2019
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Digital Input FTA Honeywell FC-Tsdi-16uni 24V 48V 16 Channels Namur Safety Module

Digital Input FTA Honeywell FC-Tsdi-16uni 24V 48V 16 Channels Namur Safety Module

US $ 50 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
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Advanced Industrial Module 6es7231-4HD32/4hf32/4hf50 Analog Input Module for PLC Factory Automation Control Systems

Advanced Industrial Module 6es7231-4HD32/4hf32/4hf50 Analog Input Module for PLC Factory Automation Control Systems

US $ 120 / Piece FOB
10 Pieces (MOQ)
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Shenzhen Seg Technology Co., Ltd

Fujian, China Since 2026
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0-20mA/4-20mA/0-5V/0-10V/1-5V Analog Signal to RS232/RS485 Modbus RTU Data Acquisition a/D Conversion Module

0-20mA/4-20mA/0-5V/0-10V/1-5V Analog Signal to RS232/RS485 Modbus RTU Data Acquisition a/D Conversion Module

US $ 55.98-58.99 / Piece FOB
2 Pieces (MOQ)
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Audited Supplier
Shenzhen Weijunrui Technology Co.,Ltd

Guangdong, China Since 2025
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Siemens 6es74311kf100ab0 Sm431 Analog Input Module 8ai 14bit Isolated

Siemens 6es74311kf100ab0 Sm431 Analog Input Module 8ai 14bit Isolated

US $ 1,451-1,800 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
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Reliable Siemens Automation Module for Accurate Analog Input Signals

Reliable Siemens Automation Module for Accurate Analog Input Signals

US $ 100-105 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Guangzhoushi Henneng Trade Co., Ltd.

Trading Company

Guangdong, China Since 2025
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B&R X20ai8321 8 Channel Analog Current Input Module for I/O Systems

B&R X20ai8321 8 Channel Analog Current Input Module for I/O Systems

US $ 300 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
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Reliable Industrial Module 6es7221-1bf32/1bh32/1bh50 Digital Input Module for PLC Factory Automation Control Systems

Reliable Industrial Module 6es7221-1bf32/1bh32/1bh50 Digital Input Module for PLC Factory Automation Control Systems

US $ 120 / Piece FOB
10 Pieces (MOQ)
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Shenzhen Seg Technology Co., Ltd

Fujian, China Since 2026
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RS485 Isolated Repeater Sensor Signal Module Supports 255 RS485 Devices Amplifier Module

RS485 Isolated Repeater Sensor Signal Module Supports 255 RS485 Devices Amplifier Module

US $ 19.88-22.99 / Piece FOB
2 Pieces (MOQ)
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Audited Supplier
Shenzhen Weijunrui Technology Co.,Ltd

Guangdong, China Since 2025
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Siemens Sm321 Digital Input Module 16di 6es73217bh010ab0

Siemens Sm321 Digital Input Module 16di 6es73217bh010ab0

US $ 578-1,200 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
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Yokogawa Adv151-P53 32-Channel 24V Isolated Digital Input Industrial Automation Module

Yokogawa Adv151-P53 32-Channel 24V Isolated Digital Input Industrial Automation Module

US $ 980 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
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Eight PNP Inputs, Eight PNP Outputs, RS-485/232 Switch Data Acquisition Module Isolation Amplifier

Eight PNP Inputs, Eight PNP Outputs, RS-485/232 Switch Data Acquisition Module Isolation Amplifier

US $ 60.99-66.99 / Piece FOB
2 Pieces (MOQ)
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Audited Supplier
Shenzhen Weijunrui Technology Co.,Ltd

Guangdong, China Since 2025
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Cts7 231-0hf32, Ctsc Module, Isolated Voltage Input Module, 8 Point *16 Bit Accuracy, Voltage Signal, Cotrust

Cts7 231-0hf32, Ctsc Module, Isolated Voltage Input Module, 8 Point *16 Bit Accuracy, Voltage Signal, Cotrust

US $ 235-280 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Cotrust Technologies Co., Ltd.

Manufacturer/Factory & Trading Company

Guangdong, China Since 2018
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Siemens 6es74317kf006AA0 Sm431 Analog Input Module 8ai 16bit Isolated

Siemens 6es74317kf006AA0 Sm431 Analog Input Module 8ai 16bit Isolated

US $ 345-1,000 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
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Fpv Interference Module Wireless RF Signal Generator & Power Amplifier 4000-6000MHz

Fpv Interference Module Wireless RF Signal Generator & Power Amplifier 4000-6000MHz

US $ 900-1,100 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Foshan Anlong Communication Equipment Co., Ltd.

Guangdong, China Since 2025
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Siemens 6ES7231-4HD32-0XB0 6ES7231-4HF32-0XB0 6ES7231-5ND32-0XB0 6ES7231-5PD32-0XB0 6ES7231-5QD32-0XB0 S7-1200 SM 1231 Analog Input Modules

Siemens 6ES7231-4HD32-0XB0 6ES7231-4HF32-0XB0 6ES7231-5ND32-0XB0 6ES7231-5PD32-0XB0 6ES7231-5QD32-0XB0 S7-1200 SM 1231 Analog Input Modules

US $ 1-10,000 / Piece FOB
1 Piece (MOQ)
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Amikon Limited

Fujian, China Since 2024
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Honeywell 900b01-0301 Controledge 4 Channel Analog Current Output Industrial Module

Honeywell 900b01-0301 Controledge 4 Channel Analog Current Output Industrial Module

US $ 550 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
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Siemens 6es74401CS000ye0 Cp440-1 Ptp Serial Communication Module

Siemens 6es74401CS000ye0 Cp440-1 Ptp Serial Communication Module

US $ 1,404-2,000 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
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About Signal Input Module FAQ
  • QWhat are the latest trends in Electrical Control Systems?

    The Signal Input Module is a premium choice in the Electrical Control System category.Latest trends highlight the shift towards smart technologies and integrated IoT capabilities. Top distributors offer guide solutions to keep your systems up-to-date, including OEM options. For tailored solutions, contact us now!

  • QWhy buy Electrical Control Systems from a trusted dealer?

    Upgrade your Electrical Control System with the elegant and durable Signal Input Module.Buying from a trusted distributor ensures access to certified and dependable systems. Competitive pricing and cutting-edge custom options are key benefits. Secure your best-fit system at a factory wholesale rate by contacting us!

  • QHow to choose an Electrical Control System for cost savings?

    The Signal Input Module is an essential part of our Electrical Control System offerings.To select a cost-saving Electrical Control System, consider the efficiency, scalability, and factory-direct pricing of the options available. Engage with wholesale suppliers for bulk purchases to lower costs. Get in touch for expert guidance!

Brand New 100% Original VI-PA 221-1bh30-Sm 221 Digital Input Module 16di 24VDC Eco

Brand New 100% Original VI-PA 221-1bh30-Sm 221 Digital Input Module 16di 24VDC Eco

US $ 262-266 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Dongguan Gexu Automation Equipment Co., Ltd.

Trading Company

Guangdong, China Since 2026
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Ctsi-Awt02-I3, Simple Series Weighing Module, 1 Sensor Signal Input, 0.01% Module Accuracy, 5VDC, 150mA Excitation Power Output Perchannel, 24-Bit Accuracy

Ctsi-Awt02-I3, Simple Series Weighing Module, 1 Sensor Signal Input, 0.01% Module Accuracy, 5VDC, 150mA Excitation Power Output Perchannel, 24-Bit Accuracy

US $ 140-185 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Cotrust Technologies Co., Ltd.

Manufacturer/Factory & Trading Company

Guangdong, China Since 2018
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8-Way 4-20mA to RS485/RS232 Conversion Modbus RTU Communication Protocol Data Acquisition Module

8-Way 4-20mA to RS485/RS232 Conversion Modbus RTU Communication Protocol Data Acquisition Module

US $ 28.99-31.99 / Piece FOB
2 Pieces (MOQ)
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Audited Supplier
Shenzhen Weijunrui Technology Co.,Ltd

Guangdong, China Since 2025
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B&R X20at2222 Temperature Input Module for X20 PLC PT100 PT1000

B&R X20at2222 Temperature Input Module for X20 PLC PT100 PT1000

US $ 300 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
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Siemens 6es74211fh200AA0 Simatic S7-400 Sm421 Digital Input Module 16di UC120/230V

Siemens 6es74211fh200AA0 Simatic S7-400 Sm421 Digital Input Module 16di UC120/230V

US $ 509-1,050 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
Chat Now Send Inquiry
4-CH Di 4-CH Relay Output, RS485/232 Remote Data Acquisition Module I/O

4-CH Di 4-CH Relay Output, RS485/232 Remote Data Acquisition Module I/O

US $ 35.33-35.99 / Piece FOB
2 Pieces (MOQ)
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Audited Supplier
Shenzhen Weijunrui Technology Co.,Ltd

Guangdong, China Since 2025
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B&R X20at4222 PT100 PT1000 Temperature Input Module for X20 PLC Automation

B&R X20at4222 PT100 PT1000 Temperature Input Module for X20 PLC Automation

US $ 300 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
Chat Now Send Inquiry
Siemens Sm331 Analog Input Module 8ai 6es73317kf020ab0

Siemens Sm331 Analog Input Module 8ai 6es73317kf020ab0

US $ 727-1,500 / Piece FOB
1 Piece (MOQ)
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CoVast Tongchuang Technology Co., Ltd.

Beijing, China Since 2026
Chat Now Send Inquiry
Channel 30A Optocoupler Isolation Relay Module

Channel 30A Optocoupler Isolation Relay Module

US $ 2.5 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Shenzhen Donghan System Technology Co., Ltd.

Guangdong, China Since 2026
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Convert Analog Signal to Digital Signal 4-20mA/0-10V to RS485/RS232 0-10V Data Acquisition a/D Conversion Module

Convert Analog Signal to Digital Signal 4-20mA/0-10V to RS485/RS232 0-10V Data Acquisition a/D Conversion Module

US $ 113.33-128.99 / Piece FOB
2 Pieces (MOQ)
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Audited Supplier
Shenzhen Weijunrui Technology Co.,Ltd

Guangdong, China Since 2025
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Profinet I/O Module for Industrial Systems with 8 Signal Points

Profinet I/O Module for Industrial Systems with 8 Signal Points

US $ 49-199 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Nanjing Decowell Automation Co., Ltd.

Manufacturer/Factory & Trading Company

Jiangsu, China Since 2023
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Original Brand New Cj1w-Cts21-E Cj1w-Ctl41-E Ssi Encoder PLC Module Goods in Stock

Original Brand New Cj1w-Cts21-E Cj1w-Ctl41-E Ssi Encoder PLC Module Goods in Stock

US $ 200-500 / Piece FOB
1 Piece (MOQ)
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Taizhou Yinshui Automation Technology Co., Ltd.

Zhejiang, China Since 2026
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1762-IR4 Input Module for Industrial Automation Control System

1762-IR4 Input Module for Industrial Automation Control System

US $ 300 / Piece FOB
1 Piece (MOQ)
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Audited Supplier
Xiamen Zhicheng Automation Technology Co., Ltd.

Trading Company

Fujian, China Since 2026
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