Server/Client Access Control Solutions

Keri NXT Series

Easy Installation and Configuration of Server/Client Solutions
Doors.NET™ Software and NXT Family of TCP/IP-based Access Control Components

Over 90,000 Organizations Chose Keri When Security Mattered Most

Integrate with with Doors.NET

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Managing and monitoring doors made simple.

Enjoy powerful control software that lets you manage and monitor installations of any size — whether you’re securing 3 doors or 30,000.

Learn About Doors.NET

NXT MSC Controllers

Ethernet-based for peer to peer communication and to host. Flash updatable. Available in 2 or 4 door versions.

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NXT Controller Add-Ons


4 Input/Output I/O Expansion

Networked via RS-485 to Controller. 4 supervised inputs/4 outputs. Flash updatable. 

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Allows connection of Wiegand output readers to NXT Controllers and allows the connection of Keri MS Series Proximity Readers for legacy systems.

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Allows connection of Wiegand output readers to NXT Controllers. Mounts on and connects directly to NXT Controller.

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NXT Credentials & Readers


Proximity Cards and Tags

Keri Systems offers 4 types of Credentials that are seamlessly compatible with all of our NXT Hardware.

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NXT Readers

  • Connected to Controller via RS-485 with a heartbeat so readers are supervised.
  • Encrypted data from Cards to Readers to Controllers.
  • 64-bit encrypted format.
  • 1,000 Ft cable distance to controllers.
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i2 box with new logo

i2 Appliances

Pre-loaded with Doors.NET Access Control Software.

  • Turn it on and discover your controllers, then start programming immediately.
  • Eliminates errors and variability found in customer-provided or off-the-shelf PCs.
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Keri Extensive Warranties

Reliability Assured

We stand by our engineering and craftsmanship and are so confident of reliability that we back our products with extensive industry-leading warranties.

Grow Your Business with a Custom Keri Solution

Win new business and grow your security company. We're by your side from initial bid to final inspection.

Tell us your security project specifications

We begin the process with a 15-30 minute phone call to determine if we have a solution that can meet the needs of your job.

Together, we design an affordable solution

Our expert support team will help you design a security solution that meets your client’s needs and your financial requirements.

We partner with you to win new business

We know that once a plan is designed, there is still a competitive bidding process. We help you convince stakeholders and win new business.

Expert customer support  available

Once you’ve closed the sale and are on-site installing our equipment, our expert support team is available in the event that you need assistance.

Talk to us

Fill out the form below and an expert will reach out to give you more details on how to win new business with Keri.