- Typical recommended interval is every 1 year. Some users extend or shorten the interval based on usage, environment, quality system requirements, and past stability data. Regulated industries may mandate annual calibration.

Fluke 28-II-EX Calibration Service
Why Fluke 28-II-EX Owners Go Rogue for Calibration Sourcing
The Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter 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 Fluke 28-II-EX calibration.
✓ Fair, competitive pricing
✓ Providers that actually know Fluke 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: Intrinsically safe, IP67, True‑RMS industrial digital multimeter for hazardous areas (ATEX/IECEx certified).
- Typical use: Electrical maintenance and troubleshooting in oil & gas, chemical, pharmaceutical, and process industries where explosive atmospheres may be present.
- Status: Active (fully available and in production).
A Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter doesn’t lie—but it will expose lazy calibration. High‑accuracy measurements demand calibration performed by technicians who understand the 28-II-EX, the specification limits, and the standards behind them.
Expert calibration verifies performance against traceable references, flags drift before it becomes failure and documents every adjustment. This isn’t box‑checking or sticker‑slapping. Its precision enforced. If your work depends on numbers you can defend, Rogue Calibration helps find the right calibration service provider for you.


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 Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter
If your Fluke 28-II-EX 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 Fluke 28-II-EX
- 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: Fluke
- Model Number: 28-II-EX
- Model Details: Intrinsically safe, IP67-rated, rugged True-RMS digital multimeter designed for accurate electrical measurements in hazardous (Ex) environments.
- Category: 28 Ii Ex Intrinsically Safe True-Rms Digital Multimeter
- Calibration Discipline: Electrical Calibration Voltmeter & Voltage Reference Calibration Lab Services Temperature Calibration
Why Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter Owners Use Rogue Calibration
The Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter 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
