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Pump ON-OFF Control System According the Float Switch High Or Low Level

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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Pump ON-OFF Control System According the Float Switch High Or Low Level

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Product Details:
Place of Origin: China
Brand Name: Lensen
Certification: FCC
Model Number: LS-RDIO0202
Payment & Shipping Terms:
Minimum Order Quantity: 2pcs
Price: Negotiation
Packaging Details: standard carton
Delivery Time: 2-7 days
Payment Terms: T/T, Western Union
Supply Ability: 6000pcs/month
Detailed Product Description
Frequency: 915MHz Power Output: 1W
Input: 2 Digital Inputs Output: 2 Relay Outputs
High Light:

1W Wireless Modbus RTU


915MHz Wireless Modbus RTU


1W Wireless Pump ControlLer

1W Wireless Modbus RTU


LS-RDIO0202 wireless I/O module 2 digital inputs 2 relay output 2km wireless control



LS-RDIO0202 Modbus RTU is a 1W I/O module, 2 isolated digital inputs, 2 isolated relay outputs, 1 RS485 (wireless RS485 customizes). Wireless control 2km-3km. Use for pump control, water level monitoring, motor, valve, light ON-OFF control.


Transparent I/O System, no programming required

Not need internet, no third party cell, no monthly fees

You have full control over your own carrier

Real time status feedback from the remote site

Fast installation and easy setup


Power output: 600mW
Wireless technology: Lora
Power supply: 9V-30V (usually choose 24V DC or 12V DC)
Control distance: 5km LOS
Baud rate: 2400bps
Receiving sensibility: -123dBm@1200bps, -118dbm(9600bps)
Networking: Point to point and point to multipoint
Protocol: Modbus RTU protocol
Port Description
Input: 2 active inputs (passive customize), isolated

2 passive relay outputs, isolated

contact max load AC250V/5A,DC30V/5A

(active outputs 0-5V customize)

Communication port RS485 (wireless RS485 customize)
Transmit current: <350mA
Receiving current: <20mA
Frequency: 915MHz
Channel No: 16 channels, can change via DIP switch
Physical Properties
Dimension: 115×90×40(mm)
Antenna Connector: SMA,vehicle antenna with 1.5m cable
Temperature: -35℃~+75℃( industrial)
Mounting method: Standard 3.5 inch industrial guild rail




  • AMR (Automatic Meter Reading)
  • Camera control (PTZ)
  • Sports scoreboard control
  • Electronic signs and message boards
  • GPS fleet tracking
  • Security systems
  • Vending machine monitoring
  • Remote weather systems
  • Remote parking and gate access systems
  • Remote weigh scales
  • HVAC control
  • Remote pump station control
  • Homeland defense
  • Robotics and control
  • Wireless inventory control applications
  • Pivot irrigation
  • Airborne telemetry
  • Remote instrumentation
  • Wireless pressure and temperature sensors


- No wires to bury or maintain, no need to drill holes on wall

- Reliable communication in all direction,any terrain, regardless of hills, walls, trees

- Cost saving in installation and maintenance

- Radio based, no need internet and monthly fee, full ownership of the system

- 4G based, high speed, no distance limit



Lensen Wireless RTU features

- Portable device, DIN-rail mounting for easy installation

- Isolated inputs

- LEDs for power supply, communication, input, output status

- Flexible networking, point to point or point to multipoints

- DIP to change different modes

- Different types of I/O, DI, DO, AI, AO are available

- I/O expandable

- Short delay time

- Support I/O reduction, field input, remote output

- Easy handing on RS485 network, support Modbus RTU protocol

- Support on-line upgrade. Can configure by customer in setting mode


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Pump ON-OFF Control System According the Float Switch High Or Low Level 1



Pump ON-OFF Control System According the Float Switch High Or Low Level 2


Contact Details
Shenzhen Qianhai Lensen Technology Co., Ltd

Contact Person: Sunny

Tel: +8613826574847

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