- 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
If you own a Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter, accurate calibration isn’t optional. It’s essential for safety, compliance, and confidence in every measurement.
Rogue Calibration simplifies calibration sourcing for Fluke 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 Fluke 28-II-EX 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: 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).
The Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter 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 Fluke 28-II-EX 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
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

Calibration Services for Equipment Owners
Rogue Calibration simplifies calibration sourcing for equipment owners by acting as a single point of entry to a network of qualified calibration service providers. Instead of chasing labs, owners submit one request and receive competitive options for pricing, turnaround, and capability—then choose the provider that fits their needs.
No markups, no lock‑in, just a faster, more transparent way to get critical equipment calibrated.
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
Calibration — Without the Bureaucracy
Finding calibration for a Fluke 28 II Ex Intrinsically Safe True-RMS Digital Multimeter 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.
