Technical Specification:

Item Reference Scope
DC Power supply Standard adapter: DC 12V/1.5A Range 9-36VDC
Power consumption Standby:12V/70mA; Working Max.: 12V/300mA
GSM Frequency 850/900/1800/1900Mhz
SIM interface Supporting 3V SIM Card
External antenna SMA Antenna interface, 50 Ohm, Gain: 3dB
Serial Interfaces 1 USB Port
Protocols SMS, GPRS UDP,TCP, Modbus RTU, Modbus TCP and more equipment protocols can be                     added according to requirements.
Digital Inputs 4 Digital input, NC/NO type, one of it can be used as Pulse Counters;
Analog Inputs 4 Analog Inputs. 12 bit resolution, 0-5V or 0-20mA or 4-20mA;
Optional: each AIN can change to PT100 RTD inputs.
Temp.&Hum Inputs Temperature range: -40°C to +80°C, Humidity Range: 0~100%RH;
Relay Outputs 4, Rated: 5A/30VDC,5A/250VAC
Power Outputs 1 Port, for external device;
Memory Capacity 200events.
Backup Battery 3.7V 1200mAH
Temperature range -10-+70 °C
Humidity range Relative humidity 95% (condensation free)
Exterior dimension 140mm*88mm*30mm
Net Weight 650g


  • Can be operated from anywhere, no distance limitation;
  • Quad band 850/900/1800/1900Mhz GSM GPRS Module inside.
  • 3G/4G/NB-IoT Modules are optional;
  • Modular design, can easily upgrade the cellular module if network upgrade;
  •  Embedded ARM® Cortex™-M4 32 Bit RISC Core, 168 MHz inside, RTOS system, reliable performance with in-built watchdog;
  • Wide range power supply 9~36VDC with over voltage and phase-reversal protection;
  •  4 digital inputs, compatibles dry and wet contact, one of it can be used as pulse counter;
  •  4 analog inputs, 12bit resolution, compatibles 0/4~20mA, 0~5V, can change to PT100 Resistance Temperature Detectors;
  • 4 relay output (5A/30VDC, 5A/250VAC), compatibles pulse outputs;
  • 1 ambient sensor input for monitoring onsite temperature and humidity;
  • Inbuilt inter-lock logic programmer and powerful timer program function;
  • Resend the data while communication failure and alert to users by SMS;
  • Inbuilt TCP/IP protocol stack, supports cloud, APP and web server applications.
  • Supports Modbus TCP protocol over GPRS/3G/4G/NB-Iot networks, performs as Modbus Slave;
  • Supports SMS Alert when I/O triggered or recovery, and external power lost or recovery;
  • Provides 1 channel 9~36VDC power source output for external device, saving wiring cost;
  • Up to 10 SMS Alert and dial numbers, can program to receive specified alarm message.
  • 10 authorized numbers can switch on/off device with a free charge call at the specified time;
  • Inbuilt internal memory to save up to 200 historical data and events;
  • Inbuilt large capacity automatically rechargeable backup battery;
  • Industrial class design suitable for long time work applications;
  • using metal shell, protection class IP30. Metal shell and system security isolation, especially suitable for industrial applications in the field;
  • L140 * W88 * H30mm, compatible wall installation and DIN35mm industrial rail installation.
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