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PLC Wireless Radio Modem

I am pleased with them. It was a good choice for our small application. It is a robust device even it has a cheap price. I will use them in our further applications when we should use remote control. Thank you for your support.

—— Codreanu from Romania

Great news! We successfully performed the installation of the two units and transmitted our 4-20mA signal with both antennae. Even the smaller antenna suffices to transmit the signal without any losses whatsoever. So you can understand that we are very happy :) .

—— Kekarios from Greek

I believe you and your products. Sunny is very responsible. The RF modules are really strong and stable. Engineer's suggestions are useful to me. The most important is module's program can updrade on-line by myself. For some special projects, they can customize according my requirements. Thank you for your support all the time.

—— Singh from India

First of all I'd like to thank you for you're prompt service. The system now works perfectly. I left a positive response on your web site. I hope it attracts more customers for you.

—— Peter from Australia

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PLC Wireless Radio Modem

PLC Wireless Radio Modem
PLC Wireless Radio Modem PLC Wireless Radio Modem PLC Wireless Radio Modem PLC Wireless Radio Modem PLC Wireless Radio Modem

Large Image :  PLC Wireless Radio Modem

Product Details:
Place of Origin: China
Brand Name: Lensen
Certification: FCC
Model Number: LS-R324
Payment & Shipping Terms:
Minimum Order Quantity: 2pcs
Price: Negotiation
Packaging Details: standard carton
Delivery Time: 2-8days
Payment Terms: T/T, Western Union
Supply Ability: 6000pcs/month
Detailed Product Description
Power Output: 1W Frequency: UHF
Interface: RS232, RS485, USB Distance: 2km
Interface Change Way: DIP Application: PLC Wireless Communicaiton
High Light:

PLC Wireless Radio Modem


2km Wireless Radio Modem


2km Wireless DTU

PLC Wireless Radio Modem


LS-R324 Wireless DTU PLC wireless controller 1W 24V power supply radio modem RS232, RS485 USB interface programmable



LS-R324 is a 1W radio modem, transmit 3km LOS. It supports UHF band, 24V power supply. Usually works as wireless DTU to connect with PLC and other industrial control devices. LS-R324 Supports RS485 Modbus RTU protocol. Has the advantage of register data restore function.



Water/waste water treatment field

Wind speed, rainfall, humidity etc data collection

Temperature, humidity, concentrations of CO2 etc data collection

Wireless data collection and transmission

Wireless communication between PLC and sensors



Power output: 24V DC

RF power: 1W

Air baud rate: 1,200/2,400/4,800/9,600/19,200bps choose one

Interface baud rate: 1,200/2,400/4,800/9,600/19,200bps programmable

Frequency band: 433, 450, 470 or others

Interface: RS-232, RS-485 and USB

Communication mode: Half-duplex

Channel: 8(default), 16/32(customized)

Receive current: <45mA

Receive sensitivity: -123dBm @ 1,200bps); -118dBm @ 9,600bps)

Transmitting current: <500mA

RF line-of-sight range: 2km (BER=10-5@9600bps); 3km (BER=10-5 @ 1,200bps)

Size: 175*115*32mm (without antenna port)


Frequency 433MHz or 450MHz, 470MHz
Power Output 1W(3000m LOS)
Protocol support Standard Modbus RTU protocol or user-defined protocol
Power supply 9-36V DC usually use 24V DC or 12V DC
Interface RS-485(default)or RS232 or USB
Channel No. 15 channel, use DIP to change
Antenna Free sucker antenna with 1.5m cable(buy 5.5dBi sucker antenna)
Temperature -35℃~+75℃ (industrial)
Dimension 175×115×32(mm) exclude antenna
Fix method Screw



Pin Definition:

Support RS232, RS485, USB, you can use DIP switch to program


About the LED indicator

a. When module is power on, POWER LED is always ON (red).

b. When module enter to set mode (DIP 8 ON), SET LED is always ON (red).

c. When module is transmitting,

     if you use RS232 port, RS232 LED blinks (green) regularly.

     if you use RS485 port, RS485 LED blinks (green) regularly.

     if you use USB port, USB LED blinks (green) regularly.

d. When module is receiving, RF LED blinks (blue) regularly.




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PLC Wireless Radio Modem 2




Contact Details
Shenzhen Qianhai Lensen Technology Co., Ltd

Contact Person: Sunny

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