Don Wolf is proud to offer the full line of Cirrus Research optimus® Sound Level Meters for Environmental & Occupational Noise Measurements.

In addition to the full line of optimus® products, Don Wolf is an authorized dealer for the Cirrus doseBadge™ Personal Noise Dosimeter.

Contact us to get a quote or order one of these products

Please Note: While we update our website, some links may be unavailable.

Analyzers and Instruments:

Components for Automation:

Analyzer Repair & Service:








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   Analyzer Training Workshop:

We now offer 330/335 & 350XL

Testo Analyzer Training Workshops! 

Testing failures and analyzer failures can

be minimized with proper training.  We can help! 


   SCAQMD:Don Wolf & Associates perform

   Linearity, Stability and Interference testing on

portable exhaust gas analyzers. This complies

with SCAQMD Rules:1110.2, 1146 and  1146.1 Periodic

Monitoring Protocols. 


Our new Wolfpack Testo Service Program will save

you hundreds on calibration, labor, parts and testing. If

you own a Testo Analyzer, this is your best bet!

Don Wolf & Associates is a Factory

Trained  and Authorized Testo Service Center

for combustion and emission products.   Our service department is dedicated to all your testo needs!

 Resource Center:

Looking for training on boiler tuning, engine tuning,

combustion efficiency and energy efficiency?

Go to Southern California Gas Company Energy Resource



We are a distributor of the following
companies' quality products:







California Based Government Agencies:

  • Avoid the three bid process & saving up to 12%
  • Does your California based City & County Agency qualify?

Don't forget to ask about: 

  • Free Product Training
  • Free Product Demo