Product details

Dimension

40mm diameter / 12mm height

Materials
  • ZAMAK top shell
  • Medical steel grille
  • Polycarbonate bottom shell
  • Silicone pad
  • Steel ring
Weight
  • Weight of the product alone: ​​<50g
  • Package weight: <100g

Charging

Qi wireless charging

Included in the Box

  • EthyloKey

  • Cord

FAQs

More questions? See our full FAQs page to find out more.

Does EthyloKey really work without blowing?

Yes. EthyloKey detects ethanol released through the skin using multiple sensors and a proprietary classification model.

What does the result mean?

EthyloKey classifies each test into one of three indicative ranges: green, orange or red.

It does not display an exact BAC value.

How accurate is it?

In controlled volunteer testing, EthyloKey classifications were benchmarked against police-grade breath testing, with approximately 5% false positives and 3% false negatives.

Results can vary with timing and testing conditions.

Why not use a traditional breathalyzer?

No mouthpieces. No consumables. No laboratory recalibration. Reusable, shareable and designed to stay on your keys.

Do I need the app?

No. EthyloKey displays the green, orange or red result directly on the device.

The app adds tracking, history and additional connected features.

Is a wireless charger included?

No. EthyloKey works with standard Qi-compatible wireless chargers.

When will my pre-order arrive?

Production Batch #01 is sold out and currently in production, with deliveries starting from October 2026.

Current pre-orders are for Production Batch #02, expected to ship between December 2026 and January 2027.