Beryl Diesel smoke opacity meter

Technologies LLC

A diesel opacity emissions meter manufacturer

Featured Specials & Upgrades

Free Wireless Film Label Printer Special

Receive a FREE compact wireless film label printer with the purchase of any new BT-4000 Smoke Opacity Meter.

- Fast wireless film label printing from BT-4000
- Compact portable design for field use
- Wireless connected to BT-4000
- Ideal for printing film labels, Vehicle and Site info QR labels, and reporting needs
- Limited-time promotional offer

Ask for the Free Printer Special "Ni_001" when ordering your new BT 4000 Smoke Opacity Meter.

Free Wireless Film Label Printer Special

Free BT-4000 Firmware Update for Self-Annual Calibration

FREE firmware update for BT-4000 units delivered before June 2026 when sent in for calibration service, enable the new Self-Annual Calibration feature using a Beryl Certified Calibration Filter.

- Perform fast on-site calibration with minimal downtime
- No need to return the full unit for annual calibration service
- Neutral density filter designed near regulated opacity standards
- Single calibration remains valid for one full year
- Beryl Certified calibration filter is available as a separate purchase
- BT-4000 units delivered after June 2026 already include this capability

Ask for the Free Self-Annual Calibration Firmware Update "BT4000_Firm_002" for eligible BT-4000 units.

BT-4000 Self-Annual Calibration Firmware Update

Please contact us for your orders

Instant On and Off: Wireless BT 2000 Smoke Opacity Sensor test setup on 5 inch curve stack.

(Shown: Wireless Sensor, magnet assembly, and hook)

Designed in the USA

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.

Beryl

Technologies LLC

(562) 698-2444

Featured Specials & Upgrades

Free Wireless Film Label Printer Special

Free BT-4000 Firmware Update for Self-Annual Calibration