The 4~20mA Wireless IoT Module is a wireless Internet of things gateway, designed for converting 4~20mA analog transducer signal to Wireless communcation over SMS/GPRS/3G/4G/NB-IoT Cellular Network, and connect to the IoT Cloud Platform.  The 4~20mA Wireless IoT Module suitable for pressure transducers, wind speed transducers, oil level transducers,liquid level transducers,etc. The 4~20mA Wireless IoT Module supports Modbus TCP Protocol and MQTT Protocol, compatiable KPIIOT cloud platform and other cloud platform or SCADA or OPC Server.

Specifications:

Item	Reference Scope
DC Power supply	7-24VDC
Power consumption	Low power consumption mode Standby:＜230uA;  Normal mode:10mA~30mA,Max:230-360mA.
Communication	Optional:GSM/GPRS/3G/4G/NB-IoT/Ethernet/LoRa
Protocols	Modbus RTU Over TCP, MQTT
SIM interface	Nano
Cellular Antenna	SMA Antenna interface, 50 Ohm
Serial Interfaces	Micro USB Port;
Digital output	OC output,1A 30V DC
Digital Input	NO or NC
Analog Inputs	0-5V or 4-20mA
Temp.&Hum Inputs	AM2301:Temperature range: -40°C to +80°C, Humidity Range: 0~100%RH
Temperature Input	DS18B20:Temperature range: -55°C to +125°C,±3% RH
Temperature range	-10-+60 °C
Humidity range	Relative humidity 95% (condensation free)

Features:

1.     Can be used as a complete product or as a secondary development module;

2.     Two working modes are available:

       Normal mode: Real-time data transmission,Users can inquiry the real-time status;

       Low power consumption mode: Ultra low power consumption(＜230uA);

3.     Multiple communication methods:GSM,GPRS,3G,4G,NB-IoT,LoRa,Ethernet,etc;

4.     Coverting 4~20mA analog signal to cloud platform over cellular network;

5.     Support configure parameters and query real-time data via SMS,software,cloud platform;

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

7.     Support two different server centers,can set IP address or domain name ;

8.     Support Modbus RTU over TCP and MQTT protocol;

9.    Wide range power supply 7~24VDC with phase-reversal protection;

10.  Using Nano sim card,support PIN code function;

11.  Provide PCBA or waterproof enclosure,can be used outside.