HMT-1 Intrinsically Safe: HMT-1Z1

Now available: the new intrinsically safe RealWear HMT-1Z1

The HMT-1Z1 is the only wearable worldwide with protection classifications in ATEX, IECEx and NEC500.

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“With the launch of the HMT-1Z1, now all workers, even those in potentially explosive areas requiring intrinsically safe equipment, can take full advantage of the freedom and efficiencies available through purposebuilt wearable computing,” said Andy Lowery, Cofounder and CEO of RealWear.

Intrinsic safety (IS) is a design and protection technique for safe operation of electrical and electronic equipment in hazardous locations by limiting the electrical or thermal energy to limits that cannot cause ignition of explosive gases, even under a fault condition in the device. “The HMT-1Z1 is the only wearable computer on the market compliant with the safety
protocols and standards mandated at oil and gas drilling rigs, pipelines, refineries, chemical plants, and flour and textile mills,” continued Lowery. “We are inspiring a new generation of workers.”

Zone 1 hazardous areas include petrochemical plants, but also include pharmaceutical, food (grain silos and sugar processing) and cosmetic manufacturing, all of which involve processing potentially explosive substances.


HMT-1Z1 compliance includes:

Intrinsically Safe
ATEX Zone 1 and CSA C1/D1

  • ATEX
    II 2G Ex ib IIC T4 Gb
    II 2D Ex ib IIIC T135°C Db IP6X
  • IECEx
    Ex ib IIC T4 Gb
    Ex ib IIIC T135°C Db IP6X
  • NEC500
    Class I, Division 1, Groups A,B,C,D T4
    Class II & III, Division 1, Groups E,F,G T4


Differences to HMT-1

The HMT-1Z1 differs from the HMT-1:

  • non-replaceable but stronger battery (more than 8 hours)
  • no Type C-USB, but still a Micro-USB port
  • USB cable with charging protection (but not intrinsically safe)
  • 50g more weight
  • red marking to avoid confusion with the HMT-1

And this is how the HMT-1Z1 looks like:

RealWear HMT-1Z1


RealWear HMT-1Z1

Compared to the HMT-1, the HMT-1Z1 is 50g heavier and also slightly wider::

RealWear HMT-1 compared to the HMT-1Z1


RealWear HMT-1 compared to the HMT-1Z1

The battery has 150mAh more and thus in total 3400mAh.

RealWear HMT-1Z1


On request, we will gladly provide you with the corresponding certificates.

For this purpose and also for all other questions please use the contact button on the top right.

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