Cellular 4G Lift station alarm monitoring systems with VPN Protection

RDI has a wastewater alarm system solution for your lift station. Alarms are sent by Text and or Email.

Lift Station Photo

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

Are you still using the Red Light or the Sensaphone Dialer System?

When your lift station alarms or red light turns on, RDI can help you out when you use the S2C pump station alarm monitoring system that will send you a real time text and/or email message.

Our S2C, a cellular water alarm solution that sends real time alarms and is a SCADA to Cloud device that is easy to install within your Lift Station controller device.

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

S2C is a Cellular/Wireless wastewater device for your sewage pump station.

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

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 tank alarm system? RDI will send a demo unit out to you. Try it before you buy it!

RDI Products

Watch Video
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

Wastewater operators need to know if remote pumps are working.

Our S2C sends out real-time alerts 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 water tower\lift stations.

  • 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 blow 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!

Meet Us at the Next 2022 Trade Show

RDI believes in having our presence at all Trade expos. RDI will provide you with the latest product technology to prove to you we are here to stay. Now is the take time to stop by our booth.

  • Wisconsin WRWA Annual Conference at LaCrosse Center, 300 Harborview Plaza April 4-7, 2023
  • North Dakota NDRWA Annual Water EXPO and Conference at Bismarck Event Center - Bismarck, ND Jan 31- Feb 2, 2023
  • Wisconsin 18th WWWA Annual Midwest Water & Wastewater Operator EXPO, Wisconsin Dells, WI February 7 & 8 2023
  • Minnesota Annual Conference at River's Edge Convention Center St. Cloud, MN March March 7-9, 2023

Get hands on demo and the latest product information.

Learn More

Association Membership

RDI continues to support your association would you please support us!

Ohio Rural Water Association


Distributed By

Custom Control Technologies, LLC

4469 Funk Road Shelby, OH 44875

Phone 419-342-5593

North Dakoa Rural Water Sytems Association


Minnesota Rural Water Association


Wisconsin Rural Water Association


Wisconsin Wastewater Operators' Association


RDI Welcome All Resellers

RDI is excited to have you as a distributor/reseller. RDI wants you to succeed and looks forward doing business with you.


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



Your message has been sent. Thank you!