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Oem 4g MQTT Modem

Basic Information
Place of Origin: Sichuan, CHINA
Certification: CE FCC RoHs
Model Number: ZHC493C
Minimum Order Quantity: 1PCS
Price: USD55~59/PCS
Packaging Details: 270*180*55mm CARTON PACKAGE
Delivery Time: 1 WEEK
Payment Terms: L/C, T/T, Western Union
Supply Ability: 50000PCS/MONTH
Material: Galvanized Steel Sheet Interface: RS485/2DI/1DO/1AI
Protocol: MODBUS TCP/RTU MQTT JSON Product Name: Rs485 Temperature Humidity Sensor
Function: Analog Acquisition Application: Temperature Humidity Sensor
Working Voltage: 12V Module Type: 4G LTE
OEM: Support Color: Black
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Oem 4g MQTT Modem


Controller Iot MQTT Modem


12V Oem 4g MQTT Modem

Controller Iot Oem 4g MQTT Modem FOR Rs485 Temperature Humidity Sensor



Parameters of MQTT Modem


Serial Port
Number of ports
Number of interfaces
1 Relay output
RS485: A, B
NO*1, COM*1
Baud rate
Mechanical durability
Data bit
8, 9
Electrical durability
Stop bit
0.5, 1, 1.5, 2
5A 250VAC 30VDC
Check Bit
Power Supply
Number of interfaces
2 Relay input
DI*2, COM*1
60mA(aver) @9V
30mA(aver) @36V
Detection range (wet node)
IEC61000-4-2, Level 4
Number of Interfaces
1 Analog input
IEC61000-4-2, Level 3
AI*1, G*1
Group pulse
IEC61000-4-2, Level 3
Scope of test





ZHC493C is a network IO product which support 2-channel dry (wet) node detection, 1-channel relay (COM, NO, NC) Output, 1 channel analog quantity (current 4~20mA) detection, 1 channel RS485/232 transparent, compatible with Modbus RTU/TCP protocol. With remote control as the core function, it is highly easy to use, users can easily and quickly integrate into their own systems to realize remote and local control based on LTE, RS485/232.


Product model: ZHC493C, the network is 4G full Netcom, providing 1RS485/1RS232/2DO/1DI/1AI interface
Featured functions: automatic collection, scheduled restart, and the device itself supports logic operations.
Protocol: Support JSON protocol acquisition control, Modbusr RTU/TCP.
Industrial-grade quality: anti-reverse connection, anti-surge, dual watchdogs, can work normally at -20℃~+60℃,
Application: remote power meter power-off control, vending machine, smart street light automatic switch.


ZHC493C supports obtaining SIM card number, signal strength, setting APN, reading and writing positioning information.
ZHC492C supports setting 8 logics.
Forward follow: DI is closed and DO is closed
Reverse follow: DI is closed and DO is opened, DI is opened and DO is closed
Greater than or equal to: trigger DO output when AI input is greater than or equal to the set value
Less than or equal to: trigger DO output when AI input is less than or equal to the set value



ZHC493C can quickly transmit data collected by various sensors to facilitate server summary and analysis, so as to realize real-time monitoring of data and promote the development of agricultural Internet of Things.

The basic function of ZHC493C is to realize the two-way transparent transmission through RS232/485 to 4G, support 4G, industrial design, built-in hardware watchdog protection, Has high speed, low delay characteristics.


ZHC493C supports "arrival at the set time point (Beijing time), trigger an action"
Item Properties Parameters
Mode Whether to turn on this timing trigger Enable/Disable
Timing time The time point when the action is triggered Hour: 00~23; Minute: 00~59; Second: 00~60
Action type Type of action performed Restart/DO
Execution channel When the action type is DO, the output channel of DO DO1~4
Execution state When the action type is DO, the DO channel outputs a value on/off



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RS485 Modbus
One to one, one to many Connection
RS485 Automatic Acquisition
Virtual Serial Port
Connfiguration Software
Threshold Report
4 Channel Socket
8 Alarm Clocks
Customize the Follow Logic of Ports



Contact Details

Phone Number : 8618982006591

WhatsApp : +8618982006591