999 sets.
Lifetime benefits.
1 / 3 · First look
Presence Key Founding Edition.
A personalised Key, all four accessories and personal benefits for life.
€249EU · tax included
$299US · tax included
Lifetime, included.
Replacement Keys.
Up to five eligible replacements per benefit year, with no Key fee.
Priority support.
Personal support when you need us, for your lifetime.
For the original purchaser. Standard replacement shipping is extra.
What lifetime includes
Benefits last for the original purchaser’s remaining natural life and do not transfer with resale. Priority support is available during Arizona business hours, without a guaranteed response time.
Replacement coverage begins on the later of 1 January 2028 and receipt of your initial Key. It covers eligible loss, accidental damage and wear affecting use. Up to five replacements per benefit year apply to one covered Key and its replacement chain. Unused allowances do not roll over. Accessories are supplied once.
Statutory defect and warranty rights are separate. The package does not include all future paid features or third-party services.
Read the full termsYour Key. Your way.
One Key. Four accessories. All included.
Presence Key
Founding Edition
Your personal confirmation for access, sign-in and approvals with participating services.
Materials & dimensions
- Material
- Champagne-finished metal housing.
- Size
- 28 × 19 × 5.2 mm
Nominal design dimensions. Measurements are approximate; use the size guide to choose your fit.
Cloud
Wristband
A continuous stretch band. Wear your Key on your wrist, with no buckle to adjust.
Materials & dimensions
- Material
- Knitted stretch textile over a concealed carrier.
- Size
- 18 mm band width · S, M or L
Nominal design dimensions. Measurements are approximate; use the size guide to choose your fit.
Choose your band size
Daily
Wrist loop
Carry your Key by hand or around your wrist, with a soft woven loop.
Materials & dimensions
- Material
- Woven textile strap with a textile-covered carrier and stitched return.
- Size
- 13.8 mm strap width · approx. 103 mm overall length
Nominal design dimensions. Measurements are approximate; use the size guide to choose your fit.
Satin
Clip
Attach your Key to a suitable pocket edge or lapel, without a strap.
Materials & dimensions
- Material
- Satin-finished metal carrier with a rear spring clip.
- Size
- Approx. 30 × 21 mm carrier footprint
Nominal design dimensions. Measurements are approximate; use the size guide to choose your fit.
Line
Pendant
Wear your Key as a pendant. Bring it to your phone or a compatible reader when you need to confirm.
Materials & dimensions
- Material
- Fine cord with a metal carrier and metal end fittings.
- Size
- Approx. 37 × 21 mm carrier footprint. Cord length to be confirmed.
Nominal design dimensions. Measurements are approximate; use the size guide to choose your fit.
The same Key fits all four accessories.
Make it yours.
Your name and confirmed edition number on all five articles.
€249EU · tax included
$299US · tax included
We will ship as soon as possible. Delivery by 31 December 2027. Initial shipping is included.
Questions, answered.
What does the price include?
In the EU, EUR 249 comprises EUR 200 for the five-piece personalised set and EUR 49 for Lifetime Benefits, including applicable taxes and duties. In the US, USD 299 comprises USD 250 for the set and USD 49 for Lifetime Benefits, including applicable sales tax. Both components are purchased together. There is no subscription or automatic renewal. Initial shipping is included. The final total is shown before ordering. Accessories are supplied once.
What does lifetime mean?
The remaining natural life of the original individual purchaser. Future personal benefits do not transfer with resale. Priority support is available during Arizona business hours; it is not a 24/7 service or a guaranteed response time.
How do replacements work?
You can request up to five eligible replacement Keys per consecutive 12-month benefit year for one covered Key and its replacement chain. This is not an allocation of five additional active Keys. Approved replacements have no Key fee; actual standard shipping is separately quoted and authorized. No stored payment method is automatically charged.
When will my set arrive?
Your complete set will arrive by 31 December 2027. We will ship as soon as possible, so it may arrive earlier. Initial shipping is included.
Will the final product look exactly like the images?
Images may differ in non-material details from the final product. The agreed items, essential characteristics and mandatory consumer rights remain unaffected.
Where can I use Presence?
Use requires participating services and compatible devices. Installation, third-party services and future paid features are not included.
Product and delivery information
Presence Key Founding Edition, Cloud, Daily, Satin and Line. Each item is personalised with your confirmed name and edition number.
Manufacturer
For Safety Group, Inc.
7950 E Acoma Drive, Suite 204, Scottsdale, AZ 85260, United States
contact@by4si.com
Ships from the United States. Initial shipping is included. For EU deliveries, applicable taxes, duties and import clearance are included in the displayed total. No additional import charges are payable on a correctly processed delivery.
Which purchase terms apply?
Purchase terms for the EU and the United States are available below.
Read the purchase terms