Cellular 4G alarm monitoring systems with VPN Protection

RDI has an 12 input alarm system solution for your needs. Alarms are sent by Voice, Text and or Email.

Lift Station Photo

Install a S2C alarm remote monitoring device that will give you an insite to your daily operation.

Our S2C, a cellular alarm monitoring solution that sends real time alarms and is a device that is easy to install within your site.

Life Time Warranty and Proudly Made in the USA

Up to 12 Alarm Monitoring Points per module, add up to 8 additional modules for a total of 96 alarms points

Customize alarm input names - Power failure Alarm - High and Low Water Alarms - Cabinet Temperature High/Low Alarm, ect.

Up to 4 Pump Run Timers *selectable

Monitor Pump Thermal Overload Failure Alarm - Circuit Breaker Failure Alarm - 1 Relay control >Optional Add-on 4 channel 4-20 mA input module

Handles Thousands of Sites

Easy Installation - Includes VPN (Virtual Private Network) - NEAM 4x Rated - Mount Internally or Externally

Real-Time Text and/or Email alerts

Input Alarms are 120Vac Optically Isolated -The S2C has a solid state battery backup so you never have to replace any batteries

Simple to Install:

No need to install drivers, software, or telephone circuits - “Show the boss” – prove your application before investing in the S2C- Free Trial. Call Today!

Field Proven

Scale – Thousands of S2C deployed. - Longevity – The S2C was developed in 2000.- Experience – we built our first S2C application in 2001.

Lift Station

Completely Wireless - Desiged for simple fast installation

Water Towers

Monitors Low level Alarm - Flow Rates - Water Temperature

The S2C remote monitoring system will notify you immediately when something starts to threaten your site.

S2C cellular lift station monitoring provides you with reports.

Simpler, Faster and Smarter Cellular Auto Dialer System for your City

Would you like to test our S2C Cellular 4G wireless alarm system? RDI will send a demo unit out to you. Try it before you buy it!

RDI Products

S2C Input view

12 Channel 120Vac or 24Vdc Input Module

4-20mA view

4 Channel 4-20mA Module Add-On


S2C 120Vac or 24Vdc Input Module

$2,000.00 +

$20per month cellular fee

  • Includes VPN (Virtual Private Network)
  • Real-time alarm and notifications sent directly to your phone and/or email
  • Solid State battery backup *never needs replacing

S2C 12 Channel Input Module pluse a 4 Channel 4-20mA Input Module

$2,500.00 +

$30per month cellular fee

  • 4-20mA 4 Channel Input
  • Selectable input range
  • Temperature Sensor
  • Current Sensors
4-20mA Module Detailsd

RDI is committed to providing unparalleded

Experience, Service and Knowledge to our Clients

If history is an indication, you're looking at the future of cellular control and monitoring. All of our products are engineered by RDI for performance and that's why our product has a Life Time Warranty.

  • 01The S2C circurt boards are created and designed in-house

    RDIcontrols the quality of the S2C product by creating the RDImotherboards.

  • Use any device that can access the internet and log into your site for a comprehensive remote monitoring system. All S2C access is protected by the VPN.

  • Supervisory Control and Data Acquisition (SCADA) is a system that aims to monitor and control field devices at your remote sites. It offers sophisticated data management, editing and validation tools.RDImaintains an audit trail of each edit and keep the database for reports.

  • Yes, we do monitor water towers. Ex: temperature alarm monitoring to prevent freeze-up. Optional Ex: 4 input board (4-20ma) that will provide you with flow monitoring.RDIwill customize your web page.


Frequently Asked Questions

Operators need to know if remote pumps are working.

Our S2C sends out real-time alerts Voice, text message and/or email to give operators access to the wastewater system data they demand.

Help your community cut costs by giving operators the support they need by installing an S2C monitoring device to monitor your site.

  • Does it work on all Cellular sites?

    Yes, our SIMs are able to select Verizion and works with Canada Bell type systems.RDI uses cellular 4G technology.

  • Is it the $20 per month cost and does it give you reports about your pump run times? With the S2C you save $ Money and have history of your pump run times and alarms for your municipal water/wastwater facitlities.

  • Yes, each user has their own login and are able to select or deselect either Text or Email messages.

  • RDI takes great pride in offering superior services and we stand behind our S2C product.

  • Our professional engineers work closely with our clients to produce acurate and timely products. RDI designs and builds custom wireless systems across all industries. With In house CAD,RDI does all our own custom printed circuit board layouts. RDI writes the Micro-Controller Software and does all Web page Design. Thus RDI has your back!

  • RDIs Cellular Fee is Billed April 1st of this year to March 31 of next year.

  • Voice alarm is an option with additional cost.

  • Pleae Call Us at 701-331-4085 and it will be done!


RDI will be happy to answer your questions if you please provide all the necessary information to contact you.


114 Eastwood Dr, Grafton, ND 58237



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