intrinsically safe multimeter

Electrical measurement in hazardous environments demands uncompromising safety, precision, and compliance. Whether you’re working in oil refineries, chemical plants, pharmaceutical labs, or mining operations, selecting the right intrinsically safe multimeter is essential for both safety and operational accuracy. These specialized instruments are engineered to prevent ignition even in the presence of explosive gases, vapors, or dust—making them indispensable for technicians and engineers in regulated industries.

This guide breaks down pricing, core specifications, and certifications for today’s leading intrinsically safe multimeters. We’ll also compare available products from the Intrinsically Safe Store, helping you make the most informed buying decision.

What Is an Intrinsically Safe Multimeter?

An intrinsically safe multimeter is a measurement instrument designed to eliminate the possibility of sparking, excessive heat, or electrical energy release that could ignite hazardous atmospheres. These tools combine voltage, current, resistance, and continuity measurement capabilities—but are built under strict limits for energy output to comply with recognized safety standards.

Why IS multimeters matter

Industrial accident statistics consistently show that electrical ignition sources remain a top cause of explosions in refineries, mines, and petrochemical facilities. In hazardous locations, simply using a non-certified multimeter may violate safety codes and expose personnel to serious risk. Intrinsically safe multimeters provide the protective design required for these environments.

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What Certifications Should an Intrinsically Safe Multimeter Have?

A proper intrinsically safe multimeter must comply with hazardous-area certifications recognized globally. These certifications determine where and how a multimeter can be used.

ATEX Certification (EU)

ATEX certifies devices to be safe in explosive atmospheres within the European Union.
Typical markings include:

  • ATEX Directive 2014/34/EU

  • Group II (surface industries)

  • Zone 1 or Zone 2 classifications

IECEx Certification (International)

IECEx provides a harmonized global standard verifying explosion protection compliance. It is widely accepted in the Middle East, Australia, and parts of Asia.

UL, CSA & North American Standards

For North America, intrinsically safe multimeters may carry:

  • UL Class I, Division 1

  • CSA C22.2 certifications

Why certifications matter

Using uncertified tools can result in:

  • Violations of OSHA and NFPA 70 guidelines

  • Risk of fire or explosion

  • Insurance non-compliance

  • Inability to pass site audits

Want to understand ATEX and IECEx certifications before choosing your multimeter?

Read ATEX vs. IECEx Explained

How Much Does an Intrinsically Safe Multimeter Cost?

Intrinsically safe multimeters typically cost between $2,500 and $3,500 USD depending on brand, features, and certification scope. Accessories may reduce or increase bundle cost.

Current Prices at Intrinsically Safe Store

Two products are currently available in the intrinsically safe multimeter category:

ProductPriceCertificationsPrimary Features
Ecom Fluke 28 II EX Multimeter$2,694.93ATEX, IECEx, UL, CSATrue RMS, IP67, drop-tested, hazardous-area compliant
USB Interface Adapter for METRAHIT 2xx and 30x Multimeters$328.15AccessoryData transfer for IS-rated METRAHIT units

What Features Should You Look for in an Intrinsically Safe Multimeter?

When selecting an intrinsically safe multimeter, key performance factors determine whether a tool will withstand hazardous-area demands. Below are essential features technicians should prioritize.

Measurement Performance

  • True RMS readings

  • High resistance measurement capacity

  • Accurate voltage and current ranges

Durability

Industrial environments require impact resistance, ingress protection, and long-term reliability. Look for:

  • IP67 rating or above

  • Drop protection

  • Shock-absorbing enclosure

Hazardous Area Approval

Ensure the multimeter displays clear labeling for ATEX, IECEx, or NEC certifications.

Ease of Use

Features that improve field efficiency include:

  • Backlit display

  • Auto-ranging

  • Easy-glove operation

  • Long battery life

Why Is the Ecom Fluke 28 II EX Considered the Industry Standard?

The Ecom Fluke 28 II EX is one of the most recognized intrinsically safe multimeters in the world due to its powerful combination of ruggedness, precision, and compliance.

Key Advantages

  • Operates in Zone 1/21 hazardous locations

  • Delivers True RMS accuracy in nonlinear environments

  • Survives 10-foot drops, extreme temperature swings, and moisture

  • Built for harsh industrial fieldwork

Who uses it?

Professionals across oil and gas, petrochemical, pharmaceuticals, manufacturing, and utilities rely on the Fluke 28 II EX for its robust safety credentials and proven reliability.

Comparison Table: Intrinsically Safe Multimeters at Intrinsically Safe Store

Below is a detailed comparison table for the products available in this category.

IS Multimeter Comparison Table

FeatureEcom Fluke 28 II EX MultimeterUSB Interface Adapter for METRAHIT 2xx/30x
Product TypeIntrinsically Safe MultimeterMultimeter Data Interface
Price$2,694.93$328.15
CertificationsATEX, IECEx, UL, CSAAccessory (no IS cert)
Voltage MeasurementYesN/A
Current MeasurementYesN/A
Resistance MeasurementYesN/A
Ingress ProtectionIP67Dependent on paired device
Use CaseField measurement in hazardous areasSafe data transfer for METRAHIT IS units

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Best Choice Breakdown by Industry

Oil & Gas

Best Choice: Ecom Fluke 28 II EX

  • High resilience to vibration, pressure, and exposure

  • Certified for offshore & refinery environments

Chemical Processing

Best Choice: Ecom Fluke 28 II EX

  • Supports strict ATEX-standard environments

Utilities & Power Generation

Best Choice: Ecom Fluke 28 II EX

  • Capable of handling both indoor and outdoor energy measurements

Mining & Metallurgy

Best Choice: Ecom Fluke 28 II EX

  • Withstands dust, shock, and moisture

What Industries Require an Intrinsically Safe Multimeter?

Many industries operate under hazardous conditions where an ignition risk is present. In these environments, IS-rated equipment is legally and operationally essential.

Industries that rely on IS multimeters

  • Oil & Gas (Upstream, Midstream, Downstream)

  • Chemical & Petrochemical Manufacturing

  • Mining Operations

  • Pharmaceutical Production

  • Energy & Utilities

  • Food Processing (dust hazardous areas)

Hazard classifications where they are needed

  • ATEX Zones 1, 2, 21, 22

  • NEC Class I Division 1

How Do You Know If a Multimeter Is Truly Intrinsically Safe?

A multimeter is only considered intrinsically safe if it meets the following criteria:

Labeling Requirements

Look for engraved or printed certifications on the body:

  • CE / ATEX markings

  • IECEx symbol

  • NEC Class I Div 1 listings

Documentation

Ensure the manufacturer provides a certificate of conformity and hazardous-area rating sheet.

Authorized Retailer

Always purchase from a verified IS equipment provider, such as the Intrinsically Safe Store, to avoid counterfeit or uncertified units.

Not sure which IS multimeter is right for your hazardous-area application?

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FAQs About Intrinsically Safe Multimeters

Are intrinsically safe multimeters required by OSHA?

OSHA requires compliance with NFPA 70 and NEC guidelines. In hazardous classified areas, intrinsically safe devices are mandatory for compliance and safety.

Can I use a non-IS multimeter in a safe zone of a hazardous facility?

Yes, but only if the area is certified non-hazardous. Workers must follow site-specific hot-work and tool-use policies.

What is the lifespan of an intrinsically safe multimeter?

Most IS multimeters last 8–12 years depending on usage and environmental conditions.

Do intrinsically safe multimeters require special calibration?

Calibration processes are standard, but only qualified labs familiar with hazardous-area electronics should perform the service.

Are accessories also required to be intrinsically safe?

If the accessory operates electrically or stores energy in the hazardous zone, it must be IS approved. Passive accessories outside the hazardous area generally do not need certification.

Conclusion

Intrinsically safe multimeters play a vital role in hazardous-area operations, ensuring technicians can work confidently without risk of igniting dangerous atmospheres. Understanding the pricing, certifications, and key features of each device helps you select the right tool for your industry. The keyword “intrinsically safe multimeter” remains central to decision-making, as safety compliance and measurement accuracy must always come first.

For the most reliable ATEX and IECEx-certified multimeters—like the rugged Ecom Fluke 28 II EX—shop trusted hazardous-area equipment built for the world’s toughest environments.