Fluke 28II EX Intrinsically Safe True-RMS Digital Multimeter with ATEX Approval. True RMS, 10A ac Max, 10A dc Max, 1000V ac Max


£1,345.00 / £1,614.00 incl VAT

⚡ Certifications from the world’s leading bodies including IECEx Ex ia IIC T4 Gb, Ex ia IIIC T130 °C Db, Ex ia I Ma
⚡ Safety and regulatory compliance with ISA-82.02.01 CAN/CSA-C22.2 No. 61010-1-04/UL61010-1:2004, and TUV 61010-1:2001. CE
⚡ The most rugged IS DMM. Strong, sealed IP67 case and rated IEC60529 IP6x for waterproofing and IPx7 for dustproofing. Withstands drops up to 3 meters
⚡ All the measurement functions of Flukes most popular industrial DMMs with added authority for ATEX zones 1,2,2 1, or 22.
⚡ 4-1/2 digit mode for precise measurements (20,000 counts)
⚡ Measures up to 1000V and 10A ac and dc (note that Ex zones require reduced measurements)
⚡ Frequency to 200 kHz and % duty cycle
⚡ 10,000 μF capacitance range for components and motor caps
⚡ Easy to use and service in the field
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Add Soft Carry Case?

Some Multimeters don’t come with a carry case that’s why we’ve added the perfect cases to go with you brand new multimeter, simply click to select.

None Leaderman LDM-C25 small Carry Case +£15.00 Leaderman LDM-C115 Large Carry Case +£22.00 Fluke C50 Meter Small Carry Case +£42.50 Fluke C25 Large Soft Carry Case +£47.50

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Fluke 28IIEx Intrinsically Safe Digital Multimeter

Product Description:

Built for troubleshooting in dangerous or explosive environments, such as the oil & gas or chemical industries, the 28II Ex is spark-proof, watertight and built to withstand 10ft/3m drops. Designed for professionals working in hazardous areas including gaseous or chemical zones, this is the strongest of full range digital multimeters equipping both electricians and technicians to handle any situation, inside and outside of hazardous zones 1, 2, 21 & 22 without compromising compliance or measurement performance.

With brain and brawn in equal measure, the hard man of DMMs has impressive measurement ranges, with voltage to 1000V, current to 10A, and resistance to 50MΩ. The temperature range is also wide and, along with milliamp and micro-amps ranges, are capacitance, frequency and duty cycle ranges, as well as continuity and diode tests.

As this is a True RMS meter, you can also measure distorted AC signals correctly, such as those that are produced by inverter drives. A low-pass filter improves accuracy further and you can perform leakage tests with the conductance range. Duty cycle measures percentage of on-time.

This meter is an auto-ranger by default, so it selects the correct range automatically when you turn it on and go to measure. Switching over to manual mode lets you select the appropriate operating range for those that prefer to test the old fashioned way. Both are fast and accurate.

Other modes include; Min/Max-Average: records low and high values and produces an average. Peak capture: record transients up to a speed of 250µs. AutoHOLD: freezes the display automatically, good for when busy testing.

Specs at a glance

AC voltage 5 ranges: 600mV / 1000V ±(0.7%+4) @ 45-65Hz 0.1mV-1V
DC voltage 4 ranges: 6V / 1000V ±(0.05%+1) 0.001-1V
DC millivolts 600mV ±(0.1%+1) 0.1mV
AC current 6 ranges: 600μA / 10A ±(1.0%+2) 0.1μA-0.01A
DC current 6 ranges: 600μA / 10A ±(0.2%+2) @ 400mA 0.1μA-0.01A
Resistance 6 ranges: 600Ω / 50MΩ ±(0.2%+1) @ 6-60kΩ 0.1Ω-0.01MΩ
Capacitance 6 ranges: 10nF / 9999μF ±(1.0%+2) 0.01nF-1μF
Frequency 5 ranges: 199.99Hz / >200kHz ±(0.005%+1) @ 199.99Hz-199.99kHz 0.01Hz-0.1kHz
Conductance 60nS ±(1.0%+10) 0.01nS
Duty cycle 0 to 99.9% ±(0.2% per kHz +0.1%)
Diode test 2V ±(2.0%+1) 0.001V
Temperature °F -328°F to 1994°F ±(1.0%+18) 0.1°F
Temperature °C -200 to 1090°C ±(1.0%+10) 0.1°C


It has to be mentioned that considerable attention has been paid to the circuit board on the Fluke 28II Ex to prevent potential sparks. Components, soldering and traces are of high quality, and there are isolation slots around inputs and high current traces, which are also sealed with resin. A power resistor, MOVs, bridge rectifier and a PTC come as standard and there are separate daughter boards for further protection.

Fuses (11A and 440mA) are of the HRC type, with the milliamp input being potted in hard resin. Fuses are rated to 1000V to earth and the input protection can withstand high energy spikes. Further protection is provided by the optical input alert system, which sets off the beeper and flashes a warning when the leads are plugged into the wrong jacks for a given dial position.

  • Fluke 28IIEx Intrinsically Safe Digital Multimeter
  • TL175 Test leads
  • AC175 alligator clips
  • 80BK-A temperature probe
  • Holster
  • Manual, CD-ROM
  • Three AA batteries (installed)
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