Three coal mines in KY
I have been in charge of installing and maintaining three of Rel-Tek's Millennia-DX carbon monoxide monitoring systems at three of our mines for over a year now. I would like to thank Rel-Tek for producing a product as dependable as the ones they provided for our operations. I have been informed by an associate of mine using a competitor's CO system, that they experience false alarms due to interference of their radios and wireless tracking system. I have not once had a false alarm at any of my three mines. The Rel-Tek CO systems have been working perfect for over a year. The CO sensors and communications cables are as close as 2 feet of our tracking system radios with no false reading. And, communications is so much faster than the competitor's. The Millennia-DX system responds in just one second of detecting CO. If there is anyone looking for a CO system that is fast and trouble free, they need to contract Rel-Tek. From start to finish, the modular Millennia-DX systems were easy to setup, operate and maintain. If I have a question or problem, Rel-Tek's service staff is excellent. A phone call to the plant, and they walk me through any issue I might have. Not so with the competitor's system, I'm told, where service is difficult to obtain. I personally want to thank the Rel-Tek support team for all the help they have provided to me. I am well pleased with our Millennia-DX systems and am happy to say so in writing.
Manalapan Mining Corp., Pathfork, Kentucky
Southern California mass transit maintenance garage
Just a quick note to let you know how much I appreciate the Rel-Tek equipment here. I tell everyone, if I were designing a facility I would specify Rel-Tek. To date we have had zero equipment failure. I have had occasion to call tech support with questions and they have always given me the answers I needed.
Facility Maintenance Manager
A mid-sized transit garage in CA
The Millennia-DX, GasBoss and MagiKal equipment has performed flawlessly since being installed by Rel-Tek [basic system dates from '98]. We are very satisfied with both products and service. We have had no problems with sensors or telemetry since they were installed. The [auto-cal] tanks have not had to be replaced since the system was upgraded [with MagiKal in '03]. There has been a significant reduction in maintenance since installation of the MagiKal system. The automatic calibration utility has provided noticeably better sensor management then the previous manual system. I would highly recommend Rel-Tek to my peers and colleagues. Using Rel-Tek for our methane monitoring needs has been one of the best decisions made by this agency."
CNG garage Maintenance Director
Simi ValleyTransit Authority, Simi Valley, CA
A major LNG garage in Texas
I feel the sensors are reliable with or without MagiKal automatic calibration. [System dates from '95; upgraded twice, adding Magikal in '01]. We automatically calibrate [38 CH4 and 18 CO] sensors monthly, and our tanks last a year. Products are very reliable and technical support is outstanding. They are very courteous and responsive. Magikal reduces the amount of time spent on calibrating every sensor manually.
LNG garage Manager of Maintenance
Sun Metro Transit Authority,
El Paso TX
A gas well operation in VA
The Rel-Tek [CH4] sensors work very well, and the support has been helpful, although we truly needed very little, as the system has performed without failure. It actually performs better than expected.
Well site Instrumentation Engineer.
Consol Energy, Claypool Hill, VA
A municipal CNG bus operation in Mass.
The equipment is working as we were told it should. We do an auto-calibration once a month and we have only had to replace each set of [cal-gas] tanks once so far [in four years]. I believe the auto-calibration virtually eliminates human error. We have always been able to call and get answers to any questions we had. I can only speculate as to whether our maintenance/labor cost would be different without auto-calibration, because we never operated the system without it. -- but to manually calibrate  sensors monthly would seem to be very labor intensive. I would expect to experience problems with human errors and missed schedules as well. All the communications/control panels have performed without incident over this same time period. I feel the Rel-Tek system has been a good investment for us, and I would recommend this product to anyone who has similar needs. I have confidence in the Rel-Tek product.
Director of Maintenance
Lowell Regional Transit Authority
A large school district in CA
We highly recommend this system. I am very happy with your product and the response from your technicians, when I called with concerns. I wish you well at your new facility and thanks again for all of your help.
Kern High School District