Sign In | Join Free | My
China King Pigeon Hi-Tech Co., Ltd. logo
King Pigeon Hi-Tech Co., Ltd.
King Pigeon Hi-Tech Co., Ltd.
Active Member

6 Years

Home > Electronic / production equipment >

GSM sms remote relay switch GSM Switch street light control 4 Relay Outputs RTU5021

King Pigeon Hi-Tech Co., Ltd.

GSM sms remote relay switch GSM Switch street light control 4 Relay Outputs RTU5021

Brand Name : King Pigeon

Model Number : RTU5021

Certification : CE,FCC

Place of Origin : Shenzhen

MOQ : 1000pieces

Price : USD,88,piece

Payment Terms : T/T,, Western Union,paypal

Supply Ability : 10000,pieces,per20

Delivery Time : 20work days

Packaging Details : gsm sms remote relay switch X1 AC/DC AdaptorX1 GSM/3G/4G Antenna X1 User Manual X1

SIM interface : 3V SIM Card

Contact Now

About Us

King Pigeon Hi-Tech.Co.,Ltd. is a leading GSM GPRS 3G 4G RTU Controller and GSM GPRS 3G 4G Industrial IoT Solution manufacturer since 2005. It provides a complete product lines and Cloud Platform, APP solution to meet different applications.

***Mianly Products***

GSM 3G 4G SMS Controller AlarmGSM 3G 4G Remote SwitchGSM 3G 4G Gate Opener Intercom
GSM 3G 4G Remote Terminal UnitGSM 3G 4G Modbus RTUGSM 3G 4G SMS Modem DTU
GSM 3G 4G Power IoT RTU433Mhz GSM 3G 4G Wireless RTUEthernet Remote I/O Module
Modbus RTU Remote I/O ModuleGSM 3G 4G Security SystemWeb Server+Cloud Platform+APP

Quickly Guide List
GSM SMS GPRS 3G 4G RTU Controller Quick Selection GuideClick Here
Modbus TCP Ethernet Remote I/O Module Quick Selection GuideClick Here
Modbus RTU Remote I/O Module Quick Selection GuideClick Here
GSM SMS 3G 4G Security Alarm Senior Care Quick Selection GuideClick Here

Brief Introduction


Name: gsm street light control

The gsm sms remote relay switchis an industrial class, high reliability, high stability Remote Terminal Unit (RTU). It embedded 32-Bit High Performance Microprocessor MCU, inbuilt industrial Cellular module, equipped 4 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 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.

Cellular Remote Relay Switches Model Table

ModelRelay OutputsRecordGSM/SMS/GPRS/3G/4G/NB-IoTSMS APPCloud+APP+Web Server

1. Default version is GSM/GPRS module inside.

2. For 3G WCDMA , 4G LTE,NB-IoT version, please tell our sales where would you like to use them.

GSM Controller -RTU5021

Typically 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. gsm street light control

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.

Item Photos


Main 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;

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

7. 4 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.


More Information

Download User Manual, App, PC configurator please visit

For Industrial IoT Solutions: For Home Security Alarms:


GPRS-M2M.jpg GsmAlarmSystem.jpg

Quality GSM sms remote relay switch GSM Switch street light control 4 Relay Outputs RTU5021 for sale

GSM sms remote relay switch GSM Switch street light control 4 Relay Outputs RTU5021 Images

Inquiry Cart 0
Send your message to this supplier
*To: King Pigeon Hi-Tech Co., Ltd.
Characters Remaining: (0/3000)