Made in USA Flag All board products Proudly made in USA!

Manufacturer of computer controlled relay, I/O and custom boards for commercial and industrial applications.

Please Note: Pencom will be closed from September 12th thru September 23 - we will re-open on September 26

** Please note supply chain shortage update 09-07-2022 -  a limited supply of the backordered parts will be arriving around September 28th for the USB boards - more parts are on order:   We have many backordered boards that will be produced first - notifications will go out to customers to verify the orders are still valid.

There will be production delays due the volume of the backorders

Due to the supply chain shortages we have been having a difficult time obtaining parts to produce our products.  Some of our parts have been on order for 12 months  Some parts are being received for certain products and we will do our best to fulfill what we can.

In addition we have been experiencing problems with our email system and many emails were never received on the following accounts our and, this has been happening for some time and we were unaware since it is happening sporadically. 

We have created two new accounts to use until we can determine the problems we are having with our system and please use these emails to contact us.

Other email address have been the same problems and we will work to correct these too.

Product Design & Modifications


Custom Modifications

Since we manufacture our own products here in the USA, we have the capability to modify our units to fit your application - if the standard products are not suitable.

These modifications may be as simple as changes to the voltage input levels on the opto-isolated input ports or higher voltage capability for power input to the board with the optional terminal block power for 24-28VDC.  We can also mix reed relays and standard relays on the same board - with limitations.  In addition, code changes may be made to the board for different control input commands or other firmware changes specific for your application.

Product Design

If needed, we can also design a new relay or I/O board or other type of circuit board suited for your application, (including simple interconnect boards for wiring connections) at reasonable prices. 

We also have the capability to incorporate our units into a custom enclosure and wire to your specific application as shown in the example below..