Beryl

Technologies LLC

A diesel opacity emissions meter manufacturer

BT-4000: Next Generation CTC-VIS Opacity Tablet

New

BT-4000 Wireless Opacity Tablet

Save time, cut costs: streamlined process means more inspections in less time.

No paper, no hassle —

signed digital ARB submission in a few minutes.

Video Introducing the BT-4000 Smoke Opacity Tablet

Automatic Guided Fill: VIN, vehicle info, and OVI results, and signed PDF results to ARB Portal:

eliminating manual input errors.

Perform SAE J1667 smoke tests directly from the tablet

Submit Direct Opacity Visual Inspection (OVI) CTC test results to ARB without printing

Engineered with the latest technology for shops, mobile testers, fleets, and owner-operators

Includes a built-in keyboard and barcode reader

No external keyboard required

Meet today’s emission standards — the tablet way.

ARB compliance in minutes, not hours.

BT-2000 Wireless Diesel Smoke Opacity Meter

Exceed all of CARB’s new Rules

Low Cost of Ownership

Meters: Now Available with Cargo Handling Testing Method

Meter Printout Includes All Required PSIP Record Keeping Data for Vehicle, Meter, Meter Operator, and Opacity Test

Accurate pass/fail Readings
on older vehicles with the BT-2000

Meter Calibration and Calibration Expiration Date
is shown on all Test Results and Printouts

BT-4000: Fully Wireless Workflow: No cables, no clutter — just fast, reliable testing in the field or the shop.

BT-4000: Go wireless. Go faster. Go BT-4000.
BT-4000: Seamless Compliance: Instantly perform SAE J1667 tests and upload results to ARB with just a few taps.

Simple Quick Easy Clean BT-4000 Wireless Setup

Wireless simple smoke test:

Wireless quick attachment system:
(Watch the Quick attached Video)

Designed

in the USA

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Copyright © 2026 Beryl Technologies, LLC. All Rights Reserved.

A smoke opacity meter manufacturer for diesel emissions testing

All trademarks and trade names are the property of their respective trademark holders. Beryl Technologies, LLC is not responsible for typographical errors. All typographical errors are subject to correction. All Prices, specifications, and images are subject to change without notice.

No parts of this site, or any of its content, including images and written texts, may be duplicated in whole or in part without express written permission

Note: The operator is responsible for verifying that the correct maximum smoke opacity is set for each vehicle. The ARB is moving to an OBD system; please refer to the ARB website for more information. Beryl Technologies will not be liable for any incorrect maximum smoke opacity limit. After all smoke tests, always print a hard copy of the test. Always verify that all data items were properly inputted and printed. Download the data from the meter after each test or at the end of the day. We recommend downloading the data at the end of each day and verifying that all smoke tests performed during the day were added to the smoke test database. Always use a secure and redundant backup system for test data storage. Beryl Technologies will not be liable for any lost or corrupted data. By submitting forms or sending emails to Beryl Technologies LLC, you consent to receive SMS or MMS messages from us.
Please note that all prices listed on this website are subject to change and may be corrected in case of an error. The information on this website is the property of Beryl Technologies LLC and may not be copied or quoted without our express written permission. We reserve the right to modify or discontinue, temporarily or permanently, any part of this website or any products or services offered through it for any reason and without notice. This includes but is not limited to, making changes to product specifications, availability, and pricing.
While we endeavor to keep the information on this website accurate and up-to-date, we make no warranties or representations, express or implied, about its completeness, accuracy, reliability, or suitability for any particular purpose. You use this website and the information contained at your own risk.