Meet Harald

The smart and easy-to-use COVID-19 contact card and contact tracing platform, built for business, health and education.

Talk to us now or book a live demo:


As seen on


Contact Harald at work in hospitals and aged care facilities

Each healthcare worker, patient, resident and visitor is issued a card that is unique to them. The card is secure and no personal information is stored on it.


If someone does report positive to a test, then the proximity data is uploaded from their card.  

All contacts are immediately notified to get tested and isolate until the results come in, so everyone can get back to work fast.

Learn more about Contact Harald or request a quote.

Register, wear, and go

Contact Harald is a wearable technical device that protects the health of your employees, their private information and data, and your organisation.


Contact Harald is a vital and proven contact tracing tool for a COVID-19 and other airborne infectious diseases.

One card, built to perform

Contact Harald’s specially-made, always-on, and secure technology records card-to-card proximity. That means no apps to download and no phone, WiFi, IT setup, or charging required.

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Active Protection

Secure technology requires zero IT integration or phone use.

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Easy to Use

Worn on a lanyard around the neck, Contact Harald records card-to-card proximity to trace which staff have come into contact with each other and for how long.

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Quick to Act

If someone gets infected, authorised staff can access the log and let Contact Harald notify any potentially affected people to isolate and be treated.

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Privacy Protection

No personal information is stored in the card. All proximity information is deleted after 20 days.

Contact Tracing Solution

Along with the cards, Contact Harald consists of two other components:

Registration and card

data upload

Secure, privacy preserving registration system and card data upload. HIPAA and GDPR compliant.


Contact tracing database

Trace who was in contact with any affected employee, up to 20 days previously. Contact and send out group SMS or emails to notify, check-in, and update.

Technical specifications

Water and dust-proof housing, IP65 rating

Size: 86 x 54 x 4mm

Weight: 18.0g

Battery: 3.7v, 1pc, 800mAh

Battery life: 6+ months depending on usage

Want to find out more details about the card?


About us

With engineering and design teams based in Sydney and Melbourne, Safedome is also represented in Europe and USA. We have been building millions of trackers globally for more than seven years.


Contact Harald uses this proven and tested technology for smart, effective, and fast contact tracing and isolation solutions.

Immediate deployment matters. Let us help you.



Ask a question, book a Zoom demo or ask for pricing. We will get back to you as soon as possible:

Talk to us


+61 419 381 103



Singapore & HK

+61 419 381 103

UK & Europe

+44 7305 222778

For all enquiries

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