Calibration Gas, Instruments & Calibration Services

PureAire oxygen monitoring systems to protect people, processes and places

RKI Instruments and Senko portable gas detectors at CPS Calibrations

Calibration gas cylinders in multiple mixtures and sizes from 34L to 103L

Crowcon gas detection solutions at CPS Calibrations

OTIS Instruments Wireless Gas Detection — Free Site Survey & Written Quote

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Instruments & Gas Detectors

Portable, fixed & wireless — plus flow, pressure & temperature. RKI, Senko, OTIS, MSA & more

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Calibration Gas

Standard 4-gas & specialty mixes, NIST-traceable with a Certificate of Analysis

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Calibration Services from $55

Ship-in (3–5 days) or on-site fleet service — QR-verifiable certificates with every instrument

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Help From Real Technicians

No phone tree. Call 865-900-8844 and talk to someone who actually calibrates this gear

Shop by Category

Gas detection, calibration gas, instrumentation & more — from the brands you trust.

Portable Gas Detection

Single-gas, multi-gas, PID & pumped monitors

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Calibration Gas

Single & multi-gas cylinders, regulators & accessories

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Fixed Systems

Fixed detectors, controllers & detector heads

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Flow Meters

Electromagnetic flowmeters

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Pressure

Smart pressure transmitters & gauges

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Temperature

Temperature sensors & transmitters

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Thermal Imaging

FLIR thermal imaging cameras

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Replacement Parts

Sensors, lamps & spare parts

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Manifold Valves

Instrument manifold valves

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Positioners

Valve positioners

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Power Supplies & Isolators

Power supplies & signal isolators

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THE CPS CALIBRATION PROGRAM

Never Miss a Calibration Due Date Again

Every instrument you calibrate with CPS is tracked in our own calibration software — ship it in, drop it off, or have us come to you. You never chase dates or paperwork again. We watch them for you.

✓30-Day Heads-Up

We email you 30 days before each instrument is due — no spreadsheets, no surprise out-of-cal meters at audit time.

✓Updates at Every Step

You're emailed as your instrument moves through the process, and your certificates are sent to you when the work is done.

✓Scan the Sticker, Get the Cert

The QR sticker on your unit pulls up its certificate — and every past certificate for your whole fleet. The scan is the login.

✓Audit-Ready Certificates

As-found / as-left readings and every calibration gas Certificate of Analysis listed right on the certificate.

Ways in: Ship-in from $55 · Drop off in Rockwood · On-site for fleets of 10+Calibrate With CPS →

FREE WITH EVERY CALIBRATION

ABOUT CPS CALIBRATIONS

A New Name. 30+ Years of Hands-On Experience.

CPS Calibrations hasn’t been around forever — and we won’t pretend otherwise. What we bring is the people: owners Derek Farmer and Kendall Smith have a combined 30+ years working hands-on with gas detection, calibration gas, and instrumentation. We built CPS in Rockwood, Tennessee to do it better — modern software, honest pricing, and people who answer the phone.

30+ yrscombined owner experience in this field

Rockwood, TNour own lab — ship-in, drop-off, or on-site

Owner-runwhen you call, you reach people who do the work

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WE SELL & SERVICE THE BRANDS YOU RUN