About us.

We are Kingdom Calibrations.

Big enough to handle your gas detection needs, but small enough to make it personal.

Kingdom Calibrations (formerly Safe-Entry Technical) is a family-owned business, founded in 2007 and recently rebranded in 2022, committed to providing our customers with the highest quality gas detection service and sales experience.

Our difference.

We support YOU. Unlike large manufacturers with extended waits, we act as a responsive middleman committed to serving you personally. We value your time and aim for a 48–72 hour turnaround* for service orders—from initial receipt and diagnosis through estimate, repair, invoicing, and return —so you can get back to work with minimal disruption.

As a small family business, we deliver clear, personal service without sacrificing professional quality or industry-standard accuracy. Choosing Kingdom Calibrations means partnering with a knowledgeable and dedicated team whose mission is to serve. With fast, attentive support, meticulous attention to detail, and over 20 years of combined experience, we strive to exceed your expectations each and every time.

*Turnaround time is subject to change based on in-house workload, and longer delays should be expected for special order parts and factory service orders.