Guangdong, China
Business Type:
Manufacturer/Factory & Trading Company
Number of Employees:
Year of Establishment:
Plant Area:
852 square meters
Average Lead Time:
Peak season lead time: within 15 workdays
Off season lead time: within 15 workdays
OEM/ODM Service
Sample Available

Relay Switch, Power Switch, Modbus Relay Module manufacturer / supplier in China, offering Relay Output GSM 3G 4G Remote Controller RTU5020, Diesel Generator Power Single Thress Phase Power Electricity Remotely Monitoring System, Industrial Automation Controller Smart Switches for Automation Remote Motor Control RTU5024 and so on.

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Relay Output GSM 3G 4G Remote Controller RTU5020

Get Latest Price
Purchase Qty. / Reference FOB Price
3-499 Pieces US $51
500+ Pieces US $43
Port: Shenzhen, China
Production Capacity: 10000
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Type: Industry Alarm
Signal Transmission: Wired Alarm
Working Mode: Active
Certification: CE
Application: Indoor, Outdoor
Working Principle: Electro-Acoustic Style

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Basic Info

Model NO.
Transmission Mode
Alarm Volume (within 1m)
Product Name
Product Name
2 Realy Output
Temperature Range
-10-+70 °c
Memory Capacity
Can Save The Data for 2000events.
Program Digital Time Switch
Authourized Number
Pulse Output
Support Pulse Output,Width:0~999s
SMS/GSM/GPRS/3G/4G Commands
Transport Package
Standard Package: RTU X1 AC/DC Adaptorx1 GSM/3G/

Gsm control switch Unit  industrial SMS Remote Controller automation control system RTU5020

Product Description

The GSM 3G 4G Remote Relay Switch is an industrial class, high reliability, high stability Remote Terminal Unit (RTU).  It embedded 32-Bit High Performance Microprocessor MCU, inbuilt industrial Cellular module, equipped 2 Solid Relay inside, can contact to electric device directly, special for remotely switch ON/OFF onsite devices by SMS, APP, Web Server, internet or timers automatically.


The GSM 3G 4G Remote Relay Switch inbuilt TCP/IP protocol stack make it suitable for internet

of things (IoT) applications, it can be easily to operate by the provided cloud, app, and web server, or integrated to you IoT applications according to the TCP/UDP protocol, or integrated to SCADA systems by standard Modbus TCP protocol, too. This is very useful if you need remote control onsite devices with low cost solution.


The GSM/GRPS/3G/4G Remote Switches is design for working in the harsh industrial application environment, widely used in a variety of industrial automation, security monitoring system, automatically control system. It can be used as a remote switch, and timer switches, it suitable for lots of applications that need remotely switch ON/OFF devices, e.g.: Street Light control, water pump control, motor switch, breaker control, etc.

Relay Output GSM 3G 4G Remote Controller RTU5020Typically applications:

1.    Security Alarm System applications;          

2.    Supervision and monitoring alarm systems;

3.    Automatic monitoring system;             

4.    Vending Machines security protection;

5.    Pumping Stations, Tanks, Oil or Water levels;

6.    Buildings and Real Estate;

7.    Weather Stations; 

8.    River Monitoring and Flood Control;

9.    Oil and gas pipelines;  

10. Corrosion protection

11. Temperatures, water leakage applications;

12. Wellheads, boat, vehicle;

13. Energy saving, street lights control system;

14. Valve controls;

15. Transformer stations;   

16. Unmanned machine rooms;

17. Control room application;

18. Automation System, M2M;

19. GSM Access Control System, GSM Gate Opener, etc.Relay Output GSM 3G 4G Remote Controller RTU5020
Relay Output GSM 3G 4G Remote Controller RTU5020

Mainly Features:

1.     Can be operated from anywhere, no distance limitation;

2.     Quad band 850/900/1800/1900Mhz GSM GPRS Module inside.

3.     3G/4G/NB-IOT Modules are optional;

4.     Modular design, can easily upgrade the cellular module if network upgrade;

5.     Embedded 32 bit ARM9 MCU, reliable performance with in-built watchdog;

6.     Wide range power supply 9~36VDC with over voltage and phase-reversal protection, optional power supply: 110~220VAC@50Hz;

7.     2 relay output (5A/30VDC,5A/250VAC), compatibles pulse outputs;

8.  Supports Switch ON/OFF by SMS, APP, Timer, and Web Server;

9.  Resend the data while communication failure;

10. Supports remotely restart the device, and configure it remotely;

11. Accepts 10 user numbers to receive daily reports and data communication failure message.

12.  Inbuilt TCP/IP protocol stack, supports cloud, APP and web server applications.

13. Supports Modbus TCP protocol over GPRS/3G/4G/NB-Iot networks;

14.  Industrial class design suitable for long time work applications;

15. Using metal shell, protection class IP30. Metal shell and system security isolation, especially suitable for industrial applications in the field;

16.  Small size, L105 * W88 * H30mm, compatible wall installation and DIN35mm industrial rail installation.

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