- The calibrator should be recalibrated generally once per year, in accordance with Brüel & Kjær’s recommendations and common industry practice, or as required by the quality system in use.

Calibrate Your Br�El & Kj�R 4231
If you own a Br�el & Kj�r 4231 Sound Level Calibrator, accurate calibration isn’t optional. It’s essential for safety, compliance, and confidence in every measurement.
Rogue Calibration simplifies calibration sourcing for Br�El & Kj�R equipment by connecting you directly with qualified, vetted calibration service providers from our trusted network—without the time-consuming search.
What Rogue Calibration Delivers
- Direct access to experienced calibration providers
- Fair, competitive pricing through provider competition
- Clear turnaround times before you commit
- Accredited and traceable calibration options
- Documentation suitable for ISO, FDA, and regulated environments
Our network supports a wide range of instruments and calibration requirements, helping you avoid phone tag, unclear quotes, and one-size-fits-all labs.
Whether you need a single Br�El & Kj�R 4231 calibration or are managing a full fleet of instruments, Rogue Calibration helps you stay compliant, reduce downtime, and keep costs competitive—without locking you into a single lab or long-term contract.
Get connected. Get calibrated. Get back to work.
Our partners provide traceable electrical calibration services to help ensure measurement accuracy, compliance, and continued usability of your equipment.
Quick Overview
- What it is: Portable, precision sound level calibrator for microphones and sound level meters
- Typical Use: Calibration and verification of measurement microphones and sound level meters in the field and laboratory
- Status: Active (fully available and in production)
The Br�el & Kj�r 4231 Sound Level Calibrator is trusted because it’s engineered for accuracy in demanding environments—but that accuracy only holds if it’s calibrated by experts who truly understand the instrument.
Measurements at this level leave no room for shortcuts or generic adjustments. Expert calibration ensures your Br�El & Kj�R 4231 is tested against traceable standards, adjusted correctly when needed, and documented properly—so the numbers you see are the numbers you can stand behind.
When decisions, safety, and compliance are paramount, precision isn’t optional. It’s earned through professional calibration done right.


Who is Rogue Calibration?
Built for speed, clarity, and real-world use, Rogue brings a modern approach to a process that hasn’t changed in decades. We're about simplicity... because we know this space and we have the tools to solve this problem We're results-obsessed.
We focus on: Clear requests, Connections with trusted providers, Better outcomes for both sides.
www.roguecalibration.com
Why Br�El & Kj�R Owners Use Rogue Calibration
Br�El & Kj�R equipment is widely used across industrial and commercial environments, but finding the right Br�El & Kj�R 4231 calibration provider doesn’t have to be difficult.
Rogue Calibration saves you time and money by connecting you with experienced labs, competitive pricing, traceable calibration options, and clear turnaround times, so you can choose the right provider with confidence.

Rather than performing calibrations ourselves, Rogue Calibration acts as your single point of contact.
- You submit a calibration request for your Br�El & Kj�R 4231
- We send your inquiry to multiple vetted calibration service providers
- Providers respond directly with quotes, turnaround times, and capabilities
You choose the provider that best fits your needs
No pressure. No obligation. Just options.
Product Information
- Manufacturer: Br�el & Kj�r
- Model Number: 4231
- Model Details: A precision acoustic calibrator for sound level meters and microphones, generating a constant sound pressure level at 1 kHz for quick, reliable field or laboratory calibration.
- Category: Sound Level Calibrator
- Calibration Discipline: · Electrical Calibration · Reference·Level Electrical Standard
Calibration — Without the Bureaucracy
Finding calibration for a Br�El & Kj�R Sound Level Calibrator usually means:
- Calling multiple labs
- Waiting days for quotes
- Getting “standard” pricing with zero flexibility
- Being pushed toward whoever answers first
Rogue Calibration cuts through all of that.
✓ You submit one request.
✓ We send it out to our network of calibration service providers.
✓ They respond — with real options.
You decide who earns the work.
