Our blog page is updated on a bi-weekly basis and covers a broad range of industry-related topics such as nuclear energy, application stories, new product highlights, replacement model updates, among many others. Here you can gleam an insight into what we’re thinking, where we’re heading, and how we’re getting there, by checking out our blogs. Want to see a topic of your interest explored? Send us a email in our contact us page!

Obsolescence Upgrades from Otek

Founded in1883 as a Swedish industrial company, Allmänna Svenska Elektriska Aktiebolaget underwent a 100 year delineation to become, in 1988, the Fortune 500 multinational company we know today as the ABB Group. They were not content to rest on their laurels however, and in 1990, just two years after the famous merger with the Swiss company Brown, Boveri & Cie, ABB acquired Westinghouse’s lucrative Control and Metering division, in addition to the absorption of other industry leaders such as International Combustion, Combustion Engineering, Fischer & Porter, Hartmann & Braun, and just before the turn of the century, TBI-Bailey by way of Eslag Bailey.

By way of all that we arrive at one of the U.S. Nuclear Power Plant staples—the TBI Bailey 775 Series. With its electromechanical design, the 775 Series meters were originally revolutionary for their streamlined efficiency in the measurement of pH, conductivity, and dissolved oxygen. History, however, is a ceaseless march, and the once-revolutionary analog technology of the 775 has fallen into the mire of 21st century obsolescence. We know this to be the ultimate fate of all analog meters in general—not from their own inherent failures, but from the limits of their potential. Limits that, with the advent of the technological revolution, have been surpassed.

Putting the Bailey 775 faithfully to bed, Otek offers the NTM-7 from its New Technology Series, as a 100% Form, Fit, and Function replacement for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344 respectively. Already equipped with our Lifetime Warranty, the NTM-7 also registers as Cyber Security Compliant—a true novelty in the DPM world!

The NTM-7 is a vertical mount with industry standard dimensions of 7.2 x 2.8 in metal, and has housing potential of up to 4 channels. It was designed to replace our HI-Q117 models, which in turn were designed specifically to replace the TBI Bailey 775 series. Additional highlight features of the NTM-7 include an automatic tricolor bar graph with intensity controls, signal input fail alarm with runtime stamp, isolated serial I/O, USB or RS485, 4 relays, over 30 input signals, configurable bar direction (up, down, or center zero), self-diagnostics, and requires only 100mW@5VDC. This model is available in either external power or Otek’s patented loop-power technology.

As Nietzsche wrote, “One must first destroy in order to create”. The long track of years between 1883 and 2019 ripped the world asunder and recreated it by the unrelenting forge of technology. Analog obsolescence is bringing destruction to the Nuclear Industry– let us help you recreate your control rooms and applications with technology that has a future.

Give Otek a call at 520-748-7900 or send us an email at sales@otekcorp.com to learn more about the NTM-7 and all our instruments—instruments that measure up.

International Instruments Potential Reached–Whats Next? Otek & the DPM Revolution

International Instruments began 1947 with the purpose of developing a series of analog meters that realized the full of a flat, stackable, and compact meter. As the Nuclear Power Industry grew exponentially after World War II, so too did the escalating need for improved nuclear instrumentation. Initially developed for the U.S.-based Atomic Energy Commission, II’s 1146 model boasted accuracies of DC: 1.5 or 2 % and AC: 2.5 or 3%. Obviously the times have changed—the red carpet of technological progress has made meters more accurate, more reliable, and frankly, an accuracy range of 1.5 to 3% is just flat-out dangerous when talking about nuclear energy.

Compare that with Otek’s NTM-V, whose accuracy is firmly 0.5%.—nearly 3x that of II’s analog! This of course, is in addition to the fact that by utilizing digital technology and Otek’s luminous LED readout display, there is no room for operator subjectivity—the number displayed is precisely the number displayed, no craning of the neck or viewing of different angles.

To that end Otek offers the NTM-V as a 100% Form, Fit, and Function replacement for the International Instrument 1146 model, for Class 1E safety related and nuclear qualified, as well as Mil-Spec 461, 167-1, 810F, 901C, and IEEE-344 respectively. Following the policy of all models in our New Technology Line, the NTM-V comes with a cyber security compliant classification.

The NTM-V housing is an industry standard 5.7 x 2.84” available in metal only and comes equipped with a 51 segment programmable tricolor bar graph and four digit LED display. Highlighted features include self-diagnostics in conjunction with our patented input signal fail alarm with runtime stamp, serial I/O with USB and RS485 options, over thirty isolated input signals, 4-20mA/30V Output on externally powered units, configurable bar direction (up, down, center/zero) with intensity control, and requires only 10mW@5VDC.

The NTM-V, like all our products, carries our guaranteed lifetime warranty, and is fully customizable to nearly any application.
If you’re interested in technology that’s accurate, reliable, objective, and from this century, give us a call at (520) 748-7900 or email us at sales@otekcorp.com today!

More Pitfalls of the Analog Age–the Hays Cleveland D03600 & It’s Future

Imagine you’re working in an I & C room with numerous meters and display panels strewn over every conceivable wall, and you need to perform daily checks. Does this five gauge meter above look “easily readable from a distance” and do you trust that its “full size is used to assure big-gauge accuracy and sensitivity” as its data sheet claims? Common sense is all that should be required here to answer no.

This clunky and dubious meter is the Hays Cleveland D03600–a stalwart at many Nuclear Power Plants, particularly in the Diablo Canyon facility near San Luis Opisbo in California. Like all analog meters, it does not lend itself to visibility across a control room, or ensure complete accuracy due to the negative common denominators associated with most analogs: inaccuracy, unreliability (stuck needles), and subjectivity. This is one of the many faces of the 21st century’s inexorable obsolescence crisis, and the question remains the same–why plow ahead with outdated and unreliable instruments when new techonolgy exists to address the problem?

Instead of burying your head in the sand, take a look at Otek’s NTM-B model, which we offer as a 100% Form, Fit, and Function replacement for the Hays Cleveland D03600 for Class 1E safety related and nuclear qualified applications, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344. As with all models in our New Technology Series, the NTM-B is Cyber Security Compliant.

The NTM-B is housing is an industry standard 3.8 x 1.9” (verticle1/8 DIN) and is available in plastic or metal, as well as carrying a 51 segment programmable tricolor bargraph and four digit LED display. Additional features include our patented input fail alarm with runtime stamp, self-diagnostics, USB/RS485, over 30 isolated input signals, intensity control, 4-20mA/30V output, configurable bar direction, and a multitude of power input options on externally-powered units. Like all our products, the NTM-B also comes equipped with our lifetime warranty and is fully customizable to consumer needs.

Why take chanes on low visibility and unreliable technology? Call Otek at (520) 748-7900 or email us at sales@otekcorp.com to upgrade your instrumentation capabilities today.

Out with the old and in with the new!

Yes, We Replace Obsolete DPM’s as Well as Analogs!

Founded in 1964, Vehicular Instrumentation Systems (VIS) was a privately controlled company under the brand name Dixson, which specialized in gauges, meters, and other measurement devices for the automotive industry. When Dixson was acquired by the global manufacturer Ametek thirty years later in 1995 as a specialty division, their aim spread to instrumentation control for a broad host of applications—which allowed the company to extend a rather lengthy foot in the door of, at the time, the burgeoning Digital Panel Meter market. Dixson/Ametek pushed their foot even further with BB101P model, a vertical bar graph, which found an abundant home in Nuclear Power Plants across the United States.

However, as we know to be true in nearly every avenue of life, all things must come to an end. The BB101P model was a tour de force when it first emerged on the new DPM playing field, but it, like its analog brethren, has become a figure of reclining history. Simply put, there are more efficient, further advanced, and more reliable options on the market today. One such option hails from Otek’s New Technology Series, the patented technology that is piquing quite the interest of the Nuclear Industry. In that effort, Otek offers the NTM-9 model as a 100% Form, Fit, and Function replacement for the Dixson/Ametek BB101P for Class 1E safety related and nuclear qualified, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-34. As with all models in the New Technology Series, the NTM-9 is fully Cyber Security Compliant.

The NTM-9 is a vertical unit standing 6 x 1.74”, whose additional features include a 51 segment programmable tricolor bar graph, an automatic signal fail detect alarm, serial communication options of USB and RS485, as well as Ethernet and Flash Memory on externally powered models, isolated retransmission (4-20mA or 30V), universal power inputs (5-32VDC or 90-265VAC) and control output options of O.C.T. (4/channel) or relays (4/channel). The NTM-9 and all our products carry Otek’s guaranteed lifetime warranty, and are completely customizable to your needs!

Give us a call today at (520) 748-7900. The future is as easy as unplugging obsolescence and plugging in Otek!

Trade In Your Crompton 007 for Model Manufactured in this Century

Crompton Instruments has been making analog meters since 1881. That’s over 140 years of instrumentation that has served the industry faithfully despite its inherent limitations. Good help may be hard to find, but let’s get real here—it’s 2019, wouldn’t you say it’s about time for a meter made in this century?

At Otek we absolutely believe it is time indeed, and that’s why we molded our patented (and industry first!) loop-power technology to meters that measure up to the changing demands and needs of the 21st century nuclear industry. We call it The New Technology Series, and with obsolescence rising fast all around us, there has never been a better time to plan for the future by unplugging your analogs and plugging in Otek!

For the Crompton 007 series in particular, we proudly offer our NTM-N, NTM-M, and Solid State Analog Meter (SSAM-N) models respectively, as 100% Form, Fit, and Function replacements for the Crompton 007 for Class 1E safety related and nuclear qualified applications, including Mil-Spec 461, 167-1, 810F, 901C, and IEEE-344. Additionally the NTM-N and NTM-M are both Cyber Security Compliant, while the SSAM-N is Cyber Security Exempt due to a lack of all critical digital assets (saves you time and money!).

All three models come with our patented input signal fail alarm, fully customizable colors, and our lifetime warranty. All the models are 100% loop-powered—just like analog meters, only with our 21st century technology!

As you can see, with such diversity in our products Otek really strives to make sure each and every one of our customers is satisfied. That’s why if you’re considering analog replacements, give us a call at (520) 748-7900 or shoot us an email at sales@otekcorp.com.

Remember—we customize our technology to meet your needs!

Form, Fit, & Function Replacement for Foxboro 257

Obsolescence is inescapable. With each passing year analog technology is rendered more and more useless by the prodigious advances of its digital counterparts. This is due to a variety of issues, most notably: inaccuracy, inefficiency, subjectivity, and quite simply, age. Progress eliminates that which cannot keep pace. After all, the Model-T went to wayside when the Mustang became available.

To this inglorious end, the Foxboro 257 is reaching extinction with the rest of the analogs. If you’re looking to replace one of these dinosaurs, OTEK offers, from our New Technology Series, the NTM-8 as a 100% Form, Fit, and Function replacement for the Foxboro 257 for Class 1E safety related and nuclear qualified, as well as Mil-Specs 461, 167-1, 810F, 901C, and IEEE-344. Like all the NTM models, the NTM-8 is Cyber Security Compliant.

The NTM-8 houses up to 2 channels and is available in loop (4-20mA), A.C. signal or external power. The model comes equipped with a 51 segment automatic and programmable tricolor bar graph and four digit LED display, in addition to an array of features that include: an input fail alarm with runtime stamp, self-diagnostics, serial I/O, USB or RS485, over 30 isolated input signals, configurable bar direction (up, down, center zero), only 100mW@5VDC, and our guaranteed lifetime warranty. In accordance with our long-standing policy, the NTM-8, like all our products, is 100% customizable to your needs!

Don’t let nostalgia render you obsolete too—like the first revving of that 1964 Mustang, the first time your NTM-8 lights up radiantly from across the control room you’ll know you’re smiling into the future.
Give us a call today at (520) 748-7900 and join the future of panel meter technology.

Enrico Fermi, the Chessel 700, and the End of an Era

On December 2nd, 1942, the Chicago Pile-1, the world’s first nuclear reactor, went critical and Enrico Fermi was christened “the Architect of the Nuclear Age”. Born in 1901 in Rome, Fermi, an innovative physicist, would emigrate to the United States where his legacy would ultimately pave the way for Robert Oppenheimer to remark in 1945, “Now I am become Death. The destroyer of worlds.”

However this brilliant man’s legacy is not bound only to the horror man divined from splitting an atom. Fermi made huge contributions to the use of nuclear power, including the discovery of transuranium elements, particle physics, statistical mechanics, and quantum theory among many others. Part of that legacy is on display today at the Fermi Nuclear Generating Station on the shores of Lake Erie, Michigan, where an analog meter known as the Chessel 700 Series has been employed for over 50 years. While the near meltdown of 1966 was not the direct fault of Chessel metering technology, the question remains: with the inaccuracy, unreliability, and subjectivity of analog meters are they really viable for the 21st century industry?

As one of the few innovative manufacturers still located in the United States, OTEK offers the NTM-4 as a 100% Form, Fit, and Function replacement for the Chessel 700 with Class 1E Safety-Related and Nuclear Qualified, as well as MIL-Spec 461,167-1, 810F, 901C, and IEE-344. The NTM-4 is equipped with a 51 segment automatic and programmable tricolor barograph and four digit LED display, as well as self-diagnostics, isolated serial I/O, 100mW@5VDC, USB or RS485, a configurable bar direction (up, down, center), and our patented input fail alarm. The NTM-4 also carries OTEK’s lifetime warranty, as well as our pledge of complete customization to your intended applications. Remember, we customize our technology to your needs!

Just as Fermi’s legacy was more than Oppenheimer’s ominous words, the analog meter’s legacy will be measured not just in its obsolescence, but in its paving of the way for a new age: the Age of the DPM Revolution. Join in by calling us today at (520) 748-7900!

Are Analog Meters Doomed?

The simplicity of the analog meter, along with its low manufacturing cost, has been offset by its unreliability, inaccuracy, fragility, and subjective interpretation. The developer of its challenger, who has several patents on loop & signal powered technology claims that his latest invention of a “Solid State Analog Meter,” (SSAM, patent pending) would help prevent tragedies like those caused by traditional analog meters. Advances in LED technology, coupled with market challenges like cyber-security protection in the nuclear power industry, helped to motivate the Dr. Fest to not only create a substitute for unreliable analog meters, but to offer a 100% compatible replacement which accepts all standard industry input signals. The SSAM technology accepts all legacy signal inputs, including 4-20& 10-50 mA current loops, ACV, Watts, Hertz and DC Volts, Amps, and Watts. In fact, SSAM can be powered by any the signal that can provide >5 mW of energy to power it, even if no other power or current is available. It can also be externally powered from 3-32Vdc or 90-265 Vac.

To expand the applications of the SSAM, Otek’s Eng. staff has included other patented options which enhance the use of the new technology. These are loop: 1) Hi-Low alarms (Pat. #6, 285,094); 2) Loop Isolator (#7, 477,080); 3) 4-20 mA isolated retransmission (#7, 684, 768); 4) Signal Failure Detection& Alarm (#9, 054, 725); 5) AC Volts, Amps, Watts and Hertz Signal Powered options (#7, 626, 378), as well as isolated USB serial output (patent pending). The SSAM technology is the culmination of his 40 year love affair with the current loop. Dr. Fest created the industry’s first loop powered digital panel meter (DPM) back in 1974 and has been expanding on it ever since.

Why the obsession with replacing the old faithful analog meter, which was invented by Dr. Edward Weston in 1893? Read the inventor’s answer in his own words below.

As much as I admire Sir Weston’s invention of the analog panel meter (APM) and the fact that it has survived for over 120 years in use and popularity, it is important for me to challenge its legacy. So many tragedies have been blamed on the analog meter because of its tendency toward stuck needles, inaccuracies, and erroneous readings by operators. In addition, its inherent inaccuracy has caused many industries like the military and nuclear power to adopt a precautionary ~5-10% safety factor on all readings. Most APMs have an accuracy of only +/- 5% (+/- 2% if you are looking at it straight on from a distance of +/- 10 inches), plus parallax when interpreting the meter. The result is that a typical nuclear electric power plant could lose over $100,000 of saleable power daily because of this safety factor. We can and must do better after over 120 years!

Yes, the greatest technical and cleanest electrical power of mankind relies on a 19th century metering technology (D’Arsonval movement) perfected in 1893 by Dr. E. Weston! That’s the reason I rose to the occasion when I was challenged by a nuclear plant manager to develop an electronic bar-digital meter identical to our New Technology Meter (NTM) but without a microprocessor.

Why without a microprocessor?

Nuclear power plant I & C (Instrument & Control) rooms have to comply with Nuclear Regulatory Commission (NRC) cyber-security regulations (NEI08-09 and many others) if they digitize their I & C. This may cost them millions of dollars and years of implementation. In the meantime, if they keep their +/- 5% analog meters, they have to operate at below optimum in the most extreme case efficiency (+safety margin), losing 8-10% of their optimum electric power output. This translates into a real loss of about $100,000 per day for a typical reactor that produces about $1,000,000/day of electricity!

After being presented with this challenge by my customer, I kept asking myself, “How in the (H) world can I design all the features of the NTM without a microprocessor (digital asset) to avoid cyber security requirements & expenses?” Suddenly I remembered that back in 2004 I had experimented with a hardware-only (no microprocessor) bar graph-digital meter. So I went into a hunting frenzy, looking for my notebook of 2004 and the prototype breadboard of what I code named “3914.” After blowing the dust off the notebook and the meter, I applied 4-20 mA of power and voila! It lit up. However, it wasn’t fully working. Two weeks later I made it work as expected! A multicolor bar-digital meter solely powered by the 4-20 mA (~5-60 mW) current loop without a microprocessor!

Although this would have been enough to satisfy the plant manager’s challenge, it did not meet my own challenge of replacing the 1893 invention by Dr. Edward Weston with a 100% comparable digital! So I gathered all my patents related to loop and signal power (as listed above) and ended up with a new breed of LED electronic meters that will measure, display, control, and transmit AC and/or DC signals without a microprocessor, and all with a +/-0.5% digital accuracy!

The new microprocessor-less & Powerless TM meter series, named SSAM (Solid State Analog Meter) can be used as a basic bar graph (like the analog meter), as a bar-digital (like obsolete digitals), or as a multi-function meter field configurable (no programming) by the user. This multi-functionality reduces inventory cost because if the housing is the same, all you need to do is change the scale plate, pluggable modules and calibration (if required). That’s all!

Custom Display Colors? Because the SSAM has no uP, readout colors are done with high- efficiency, pure white LEDs whose colors can be customized by simply adding colored filters embedded in the scale plate at the user’s facility. After my Power Point presentation and demonstration of the new powerless technology at a nuclear corporate “Lunch & Learn” session, a manager asked me: “~What would you do if you were the I&C manager?”

I responded: Let me ask you: what is the simplest, most reliable & efficient means of transmitting analog signals? The Current Loop someone in the back yelled! Yes! If I had the wire & EMF, I could transmit an analog signal (and a digital over it as well [HART]) to the moon and back! So the first thing I would do is to decide whether to a) replace only the analog meters, or b) to add a DAS (Data Acquisition System), or c) add a state of the art SCADA (Supervisory Control and Data Acquisition System) with Triple Redundant Control TRC (such as our model TRC).

However, both b & c require Cyber-Security compliance. Option a does not have to comply with cyber security requirements, as the new SSAM doesn’t have microcontrollers or serial I/O! For the analog meter replacement only, I would: 1) Change all my signals & wiring to 4-20mA; 2): install the best 4-20mA transmitters, (hopefully our own NTT series), and 3) install the SSAM. With its easy wire-per-wire and panel compatible drop in ability, even existing wiring and panels can be reused with SSAM!

All other sections of the control room could remain the same, except that now your efficiency, daily productivity and profits would increase. A typical reactor produces about $1million daily of electric power, so every 1% increase in productivity is ~$10,000 per day of profit or ~$3.65 million/year!

All of above is explained & analyzed in my upcoming white paper entitled “Nuclear Reactor Efficiency and ROI Assessment.” It is further explained in my response to the Nuclear News June 2017 editorial by INL Engineers titled “Human Factors for Main Control Room Modernization.” In this article, I identify and analyze 6 options for the digitalization of I &C rooms:

1) Do nothing and keep the current analog or digital instruments and lose ~$10K/day, or $3.65 million/year, for every 1% loss in efficiency in a ~$1M/day plant!

2) Go for broke with flat screens & SCADA Triple Redundancy Control and comply with cyber- security regulations at over $200 million and 5-7 years of implementation time. This translates to a loss of >$10K/day or 1% of profits for 5-7 years. Add to this cost the investment price tag of ~$200 million (+ overruns) and you’ll lose over $300 million!

3) Change to flat screens & DAS (for data collection only). You still incur cyber security compliance costs of about $75 million and the loss of 1% per day of income while you wait for the upgrade. The potential loss could be over $150 million in the process.

4) Replace (during outage) obsolete meters with Otek’s NTM series, which are SCADA/DAS/DCS compatible (like option 1) Class1E instead of flat screens. This option means no new wiring (except serial I/O), no power supply and no new building costs. This saves about $75 million but adds cyber security compliance costs (~$20 million?); it eliminates the 5-7 years of loss profits while waiting for a new building. The return on investment (ROI) will take only about 18 months (assuming a 10% increase in efficiency or ~$36.5 million/year!)

5) Implement a DAS (Data Acquisition System [data collection & analysis]) with Otek’s NTM series (or equivalent) during one outage. This is equivalent to option #3, but at its lower cost of about $35 million and with no loss of normal productivity & no new building to build & wait. This ROI is about one (1) year for a typical 5-8 % increase in efficiency including cyber security cost!

6) If you are a non-regulated utility or your reactor has a limited operating life expectancy or is in a very competitive market, just replace your obsolete analog & digitals all at once or as needed with the SSAM series. The total cost would be about 1/3 of replacing the obsolete analog/ digitals, and will pay for itself within the first week (assuming a 1% increase in efficiency)! And the rest is profit for years to come!

Conclusion: After over 40 years of persistency, I feel I have done justice to the long lived analog meter of 1893! Thank you Dr. Edward Weston for an excellent job well done! But all good things must come to an end! I still think that the analog meter is near extinction!

Dr. Otto P. Fest,
resident/Founder of Otek Corporation
opfest@otekcorp.com
520-748- 7900

Bach Simpson 3623 Replacement

For nearly five decades the Bach Simpson 3623 meter has faithfully served Nuclear Power Plant control rooms in their instrumentation needs. As we approach twenty years into the new millenium that faithfullness is nearing collapse. Analog obsolescence cannot be ignored and is not going to simply disappear or disipate if we bury our heads in the proverbial sand. Delay it, ignore it, it makes no difference–the obsolescence issue facing the Nuclear Industry is a natural byproduct of inexorable technilogical advances and the only responsible course of action is to take action. Why not get the jump now and save a little time and money, rather than waiting till your hand is forced?

Jump into the new era of panel meter technology with OTEK’s New Technology Series, featuring the NTM-B. This model is designed to be a 100% Form, Fit, and Function replacement for the Bach Simpson 3623, for Class 1E safety related and nuclear qualified, as well as MIL-SPEC -461, 167-1, 810F, 901C, and IEE-344. The NTM-B also carries a Cyber Security Compliant classification.

Additional features of the NTM-B include and automatic tricolor bargraph with intensity control, an input fail safe alarm run time stamp, self diagnostics, isolated serial I/O with USB or RS485 including ehternet or flash memory for external power options, configurable bar direction pointer, over thirty isolated input signals, and four possible relays. As with all OTEK products, the NTM-B carries our lifetime warranty and is completely customizable to your specific needs.

Get a jump on the analog obsolescence wave and give us a call! (520) 748-7900.

OTEK Offers 100% Form, Fit, and Function for the GE/DB40

While the Nuclear Industry grapples with its looming analog obsolescence crisis, OTEK is stepping up to offer immediate and viable solutions. The DB40 has been an industry fixture for nearly a half century, but as with the rest of its analog brethren, it is facing extinction with the inexorable advancements in technology and changing industry standards. The typical solutions to this problem have been both cost prohibitive and time consuming, particularly when power plants opt for Flat Screen replacement which results in lengthy shutdowns and diminished sight of any R.O.I.

OTEK’s solution is our Plug & Play technology, which offers 100% Form, Fit, and Function replacement for the GE/DB40 for Class 1E Safety Related & Nuclear Qualified as well as Mil-Spec 461, 167-1, 810F, 901C, and IEE-344. With OTEK you don’t have to close your plant for lengthy installations, undergo expensive rewiring in your control room, or retrain your operators. With our New Technology meters all you need to do is simply unplug your analogs and plug in OTEK.

For the DB40 we offer equivalent replacements with our NTM-M, NTM-N, and NTM-3 respectively. All three models feature our patented automatic signal fail detect alarm and serial transmission with run time stamp and unit ID. Additionally the technology that powers these models is customizable to your needs, as with all our products here at OTEK. And of course, each comes with our guaranteed lifetime warranty.

So if you want to be proactive in fighting the obsolescence challenge and do so without wasting money or efficiency, please give us a call today at 520-748-7900!