Sensing the World’s Needs: Essemtec Helps Comus International Provide Turnkey Sensors

By Dhiran Rana

Comus International was founded in June 1978 by President and CEO Robert P. Romano.

Essemtec’s FOX4 placement machine helps Comus International keep up with new business ventures without sacrificing quality.

Comus International began as a manufacturer of glass mercury tilt-switches for residential and commercial thermostats. Immediate success and rapid growth led to new product development and soon the metal mercury switch and, ultimately, the patented non-mercury switch were designed and offered to the market, which led to further success. Today, Comus International is a leading manufacturer of tilt and tip-over switches, motion/vibration sensors, reed switches, reed relays, solid state relays, proximity sensors, float switches and a wide variety of custom turnkey sensors. Its product growth and offering has been built with an excellent reputation for quality and service.

Comus has evolved into a world leader in the design, development and manufacture of a wide variety of sensors and sensor-related products. Applications are found in market segments such as medical, automotive, white goods, alarm and security, and military/aerospace. Products include reed switches, relays, proximity sensors, tilt switches/motion sensors, liquid level/pressure sensors, smart sensors and custom products.

“At Comus we take pride in being known throughout the industry as a leader in providing the best service to our clients,” said Romano. “Our lasting commitment is to meet the ever-changing necessities of our customers and the markets they serve. We strive to continually improve our processes and our products and to pioneer developments and sensors that use less power while never sacrificing quality or function. Additionally, we work to expand our product knowledge and diversification so that we may continue our mission of ‘sensing the world’s needs’.”

To meet this mission and exceed customer needs, Comus International partners only with manufacturers that hold the same high standards. Essemtec is one such partner and has worked with Comus International since 2011 with the original purchase of the Pantera line. Romano said, “We were amazed how the machines worked and the precision technology behind the line.”

Since that time, the company upgraded to the FOX4 pick-and-place machine. Comus originally chose Essemtec’s Pantera because it allowed the company to realize its strategic vision of kitting and board products for customers without worrying about deploying too much capital too soon in a fairly new market. Romano added, “Over time, we were able to add customers and products and increase our market share to the point where increasing capacity was the only way to ensure we could continue our success. The Essemtec team was great to work with and they were our logical first choice when it came time to make another investment.”

Essemtec’s FOX4 allows Comus International to scale its new business ventures with the assurance of not sacrificing quality. FOX4 can place up to 18,800 cph on 4-axes at 50 µm, 3 sigma with a two-nozzle head. It has an 8 mm tape feeder capacity of 200 and features a footprint of 1m2. Additionally, the system can handle component sizes up to 80 x 80 mm. The machine features quick changeover including nonstop production and nonstop, intelligent smart feeders. The platform is the first in its class to feature linear motors with a mineral cast frame, providing excellent speed, stability, accuracy, and making it perfectly suited for use in small to medium production environments. The motors also are maintenance-free and provide a long lifetime.

In addition to quality, Essemtec provides Comus International with excellent service. Romano said that the company first chose Essemtec seven years ago because local service and strong technical support are key for Comus as well as its customers. “Having access to local support during times of crisis are what keep customers in the long run. Having equipment that can work interchangeably with what we already have also is a big plus,” he added. Both companies are located in New Jersey, and Comus International likes knowing there is a local branch in the same state, if needed.

He continued to say that Essemtec’s customer service has been great over the years. “All our questions and concerns are always addressed efficiently and comprehensively. We have professional help for technical troubleshooting in a matter of minutes. Additionally, the FOX4 installation was very well-organized and the training that was provided was excellent.”

Comus International believes that quality is the cornerstone of success. As a result, the company provides only the highest products to customers. It also is ISO 9001:2015 certified and RoHS compliant, and all its products are both UL test and approved.

The company continues expanding its services and capabilities as its reputation continues growing. Comus International now offers PCB design and packaged solutions to customers. It has a leading team of engineers and technicians for the highest quality of manufacturing and assembly. “We are proud to offer quick turnarounds and rapid prototyping for customers who require an expedited flow from design inception to conceptual testing and, finally, production scaling,” concluded Romano. Essemtec will be there for Comus International, working to help the company succeed by providing adaptive technology that grows with the company.

For more information about Comus International, contact Dhiran Rana, Chief Engineer, at 454 Allwood Rd., Clifton, NJ 07012; 973-572-4607; E-mail:; Web site: To find out more about Essemtec’s latest technologies, contact Steve Pollock, VP of sales at 856-218-1131 or, or visit the Web site at


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