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

Power Distribution Measurement, 4G Power Monitoring System, 4G Power Measurement RTU manufacturer / supplier in China, offering Power Distribution Measurement and Remote Monitoring System S257, 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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Power Distribution Measurement and Remote Monitoring System S257

Get Latest Price
Purchase Qty. / Reference FOB Price
3-99 Pieces US $199
100-499 Pieces US $179
500+ Pieces US $119
Port: Shenzhen, China
Production Capacity: 10000
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Type: Industry Alarm
Usage: Auto, Door, Personal, Smoke, Window, Fire
Product Name: Cellular Electricity Power Iot RTU S257
Power Supply: 60~500VAC/80~700VDC
Optional: 3G and 4G
Ethernet: Supports Modbus TCP

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Basic Info

Model NO.
Digital Inputs
2,Nc/No Type
Relay Outputs
Memory Capacity
100000 Historical Data and Events
Backup Battery
3.7V 900mAh
Temperature Range
-25-+60 °c
Net Weight
king pigeon
Transport Package
Iot Rtux1 AC/DC Adaptorx1 GSM/3G/4G Antenna X1 Use
HS Code
 Cellular Electricity Power IoT RTU 


Name: Cellular Electricity Power IoT RTU S257

The Cellular Electricity Power IoT RTU is special designed for IOT Based Real Time Distribution Transformer Monitoring System(DTMS) and Electricity power monitoring system using Internet of Things (IoT), all monitoring parameters are processed and if any abnormality occurs, e.g.: overload or loss phase or exceed the pre-set value, it will alert by SMS, Voice call, Cloud, APP, Web Server, SCADA, HMI, DSC and recorded in system memory immediately.

The Cellular Electricity Power IoT RTU is special using for remote monitoring 100~400VAC of 3-Phase electricity power distribution safety and measurement, can measuring the 3-phase 3-wire, 3-phase 4-wire distribution power voltage, current, factor, watts, frequency, apparent power, active power, reactive power, active energy, reactive energy. Also, it provides Dual SIM, 2 digital inputs, 2 relay outputs, 1 ambient sensor input for monitoring onsite temperature and humidity, also 1 RS485 for extend I/O to monitoring oil level and temperature or read meters.

The Cellular Electricity Power IoT RTU is an industrial class, high reliability, high stability, and programmable Remote Terminal Unit (RTU).  It embedded 32-Bit High Performance Microprocessor MCU, integrated special measurement chip and inbuilt industrial Cellular module(GSM/GPRS/3G/4G). It provides 1 RJ45 Ethernet port for connecting the internet over cables.

The Cellular Electricity Power IoT RTU also can monitoring and operates the I/O ports by SMS, APP, Web Server, internet, timers and programmed inter-lock events automatically.

The Cellular Electricity Power IoT RTU inbuilt TCP/IP protocol stack over cellular network or Ethernet to 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.Power Distribution Measurement and Remote Monitoring System S257

Typically Applications:

1. IOT Based Real Time Distribution Transformer Monitoring System (DTMS)

2. Power Distribution measurement and remote monitoring system

3. Online Real Time Distribution Transformer Health Monitoring System (DTMS)

 Mainly Features:

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

2.     Quad band 850/900/1800/1900Mhz, Dual SIM and GSM GPRS Module inside.

3.     3G/4G/NB-IoT Modules are optional, LCD Display is optional;

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

 5.   Embedded ARM® Cortex™-M4 32 Bit RISC Core, 168 MHz inside, RTOS system, reliable performance with anti-jamming and in-built watchdog;

6.     High isolate voltage, current and voltage input signal isolated by accuracy transformer, afford arrive DC2500V;

7.  Working Voltage: 60~500VAC or 70~800VDC;

8.  3-phase 3 wires or 4 wires power parameter measurement, include voltage, current, factor, watts, frequency, apparent power, active power, reactive power, active energy, reactive energy, phase loss;

9.  Measurement range: AC100~400VAC, currant range: 5A, other range should use CT;

9.  2 digital inputs, compatibles dry and wet contact, 2 relay output (5A/30VDC, 5A/250VAC), compatibles pulse outputs;

10.  1 ambient sensor input for monitoring onsite temperature and humidity;

11. 1 RS485 port, supports Modbus RTU Master and Slave, can be used to extend I/O ports or meters;

12.  Provides 1 channel DC power source output for external device, saving wiring cost;

13.  Each parameter can setup threshold, when exceed or recovery will alarm immediately;

14.  Can monitoring phase loss, when occurs will alarm immediately;

15.  Inbuilt inter-lock logic programmer and powerful timer program function;

16.  Resend the data while communication failure and alert to users by SMS;

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

18.  Supports Modbus TCP, Modbus RTU protocol and transparent transmission, can be used as master and slaves, can integrate to SCADA, HMI, DSC directly.

19.  Supports USB setting, reading, records inquiry and firmware upgrade;

20.  Supports 100000 historical records for checking;

21.  Integrated 1 Industrial 10/100M adaptive Ethernet module inside, supports Modbus TCP;

22.  Supports SMS Alert when overload, I/O triggered or recovery, and external power lost or recovery;

23.  Up to 10 SMS Alert and dial numbers, can program to receive specified alarm message.

24.  Inbuilt large capacity automatically rechargeable backup battery;

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

26.  using metal shell, protection class IP67. Metal shell and system security isolation, especially suitable for industrial applications in the field;

27.  L250 * W220 * H70mm, weatherproof metal enclosure.



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