- Typically, these laboratory microphones should be calibrated at least once a year, or as required by your quality system or ISO 17025 guidelines.
- More frequent calibration may be necessary if used in harsh conditions, after accidental shock or overload, or with exposure to contaminants.
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Br�El & Kj�R 4138 Calibration Service
Why Br�El & Kj�R 4138 Owners Go Rogue for Calibration Sourcing
The Br�el & Kj�r 4138 1/8" Condenser Microphone is a workhorse tool — widely used, well understood, and absolutely critical when accuracy matters.
Finding the right calibration provider shouldn’t slow you down. Instead of searching lab directories or settling for the first option you find, Rogue Calibration does the heavy lifting for you, connecting you with qualified providers that meet your technical and quality requirement for Br�El & Kj�R 4138 calibration.
✓ Fair, competitive pricing
✓ Providers that actually know Br�El & Kj�R products
✓ Clear turnaround times
✓ Traceable calibration options
✓ Transparency before you commit
Rogue Calibration makes that happen by letting the market do what it does best.
Our partners provide traceable electrical calibration services to help ensure measurement accuracy, compliance, and continued usability of your equipment.
Quick Overview
- What it is: 1/8" precision condenser microphone (pressure field type)
- Typical use: Acoustic and ultrasonic measurements up to 140 kHz, calibration labs, audiometry equipment, specialized R&D
- Status: Active (fully available and in production)
The Br�el & Kj�r 4138 1/8" Condenser Microphone is built for precision—but precision only matters if the calibration is done right. Expert calibration ensures it is tested against traceable standards, adjusted correctly, and proven accurate where it counts. No shortcuts. No guesses.
When safety, compliance, and real‑world decisions are on the line, professional calibration is the difference between trusting your readings and hoping they’re 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
Request Calibration for Your Br�el & Kj�r 4138 1/8" Condenser Microphone
If your Br�El & Kj�R 4138 calibration is due, get started in minutes.
Submit your request through Rogue Calibration to compare qualified providers, pricing, and turnaround times before you choose.
Request a Calibration Quote Now
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 4138
- 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: 4138
- Model Details: Extremely small, high-frequency laboratory standard microphone, ideal for precision acoustic measurements up to 140 kHz.
- Category: 1/8" Condenser Microphone
- Calibration Discipline: · Dimensional Calibration (in terms of verification cases, less common, but possible for physical dimensions)· Electrical Calibration (signal integrity)· Reference·Level Electrical Standard· RF & Microwave Calibration (since it measures sound into high ultrasonic frequencies; some overlap)· Voltmeter & Voltage Reference Calibration Lab Services (in calibration lab context)· (Mostly, this microphone is calibrated as part of Acoustic Calibration, which is not a discipline in the list, but electrical and reference standards are involved.)
Why Br�El & Kj�R 1/8" Condenser Microphone Owners Use Rogue Calibration
The Br�el & Kj�r 4138 1/8" Condenser Microphone is a trusted tool in industrial, commercial, and maintenance environments. But finding the right calibration provider can be time‑consuming.
Rogue Calibration helps you save time and money by:
- Eliminating the need to contact multiple labs
- Encouraging competitive pricing
- Connecting you with providers experienced in Fluke instruments
- Supporting traceable calibration options (ISO / NIST / ANSI, depending on provider)
- Letting you compare turnaround times before you commit