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3 products
4SI
Presence Key
One personal Key. Eight finishes.
Pre-orderPlanned arrival 2027Timing may change.Explore
4SI
Presence Reader
Physical presence. At the checkpoint.
Pre-orderPlanned arrival 2027Timing may change.Explore
4SI
Presence Enterprise
Your people, integrations and access.
Pre-orderPlanned arrival 2027Timing may change.ExplorePre-order information
Free and non-binding. No payment is taken.
About availability and your request
“Pre-order” means a request to reserve release interest or discuss a project, not a purchase order or contract of sale. Planned arrival in 2027 is a current target, not a guaranteed shipment, installation or service date. Timing, specifications, supported integrations, regional availability and pricing may change. Your request does not guarantee allocation or delivery, and you have no obligation to buy. Final details and any purchase terms will be provided separately before you decide to place a binding order. You may withdraw your request by contacting 4SI.
For software, 2027 refers to the planned product rollout associated with these offerings; existing web access is separate. Installation and Enterprise deployment are confirmed per project.
Key reservation terms Contact 4SI