Lock Compatibility · Honeywell
Onity-Compatible Hotel Key Cards
From an HT reorder to a Trillium retrofit, identify the reader actually installed on your doors before choosing replacement card stock.
For independently sourced replacement cards. Confirm the exact credential and your property's authorization requirements before ordering; brand names identify the intended locking system.
At a glance · indicative, updated September 2026
Indicative prices for Onity key cards
| Card format | Indicative range per card (USD) |
|---|---|
| Magstripe (LoCo, PVC) | $0.03 – $0.10 |
| MIFARE Ultralight EV1 compatible, PVC | $0.16 – $0.30 |
| MIFARE Classic 1K compatible, PVC | $0.10 – $0.30 |
| MIFARE Ultralight C (ULC), PVC | $0.16 – $0.30 |
MIFARE Plus credentials and Trillium 2.0 specifications are quoted per specification.
Indicative USD ranges per card at 1,000–4,999 pieces per design, four-colour offset printing included, EXW Dongguan; freight, duties, taxes, special finishes, sleeves and credential preparation are quoted separately, and the exact price is set in a dated quote.
Quantity bands. Per design, against the 1,000–4,999 range: about −15% from 5,000 pieces, −25% from 10,000 and −35% from 25,000; 500–999 pieces run about +35%. Full price table
A price range is not a compatibility statement. Confirm the chip with test samples in your own locks before ordering.
Confirm your Onity setup
An Onity property can include magnetic-stripe readers, RFID readers and retrofitted locks. The HT, ADVANCE or Trillium name is useful context, but the installed reader and issuing setup determine what card to order.
Onity publishes several RFID options for Trillium 1.0, including MIFARE Ultralight® C (ULC), and its current range separately identifies Trillium 2.0. Properties that applied an Onity security update commonly report moving from MIFARE Classic® to ULC credentials; confirm this for your own encoder rather than assuming it from the lock name. Send the exact generation and current credential specification with your printing enquiry. This avoids treating every Trillium card as one chip type or assuming that a mobile-key upgrade changes physical card requirements.
Onity credential reference
Use the manufacturer references below to prepare your inquiry. Supported credential families, card preparation and installed configurations must be checked together; these are not interchangeable purchase options.
| System / application | Card / chip | What to confirm |
|---|---|---|
| Existing HT / ADVANCE property | Confirm magstripe or RFID reader | A retrofit can change the reader. For a magnetic-stripe unit, confirm coercivity and encoding format from the existing stock specification. |
| Trillium 1.0 RFID | MIFARE Classic, Plus, Ultralight, Ultralight C (ULC) | These are published reader options, not a list of interchangeable blanks. The data sheet names OnPortal software and a Compact RFID encoder. |
| Trillium 2.0 / newly upgraded reader | Obtain the specification for this generation | Onity lists Trillium 2.0 separately. Confirm its installed firmware, issuing system and credential configuration instead of carrying over a 1.0 assumption. |
| DirectKey-enabled property | Confirm the physical card independently | DirectKey adds mobile access. Its presence does not identify which RFID or magnetic-stripe card your front desk must issue. |
Manufacturer references · checked 10 September 2026
- Onity / Honeywell: Trillium range and generations
- Onity / Honeywell: Trillium 1.0 reader options
- Onity: Trillium RFID encoder and retrofit data (PDF)
These references describe the manufacturer's system. They are separate from evidence for the Cardotel card offered in your quote.
Card options for your Onity inquiry
- Printed replacement cards quoted against the current Onity credential specification
- Magstripe card enquiries with the stripe and encoding requirements supplied
- Separate batches for original readers and retrofitted areas
- Artwork, card finish and matching sleeve options for brand approval
Order planning
What determines your quote
Start with your quantity, destination and Onity system details. The final card specification determines the minimum order, price and schedule.
- Card specification
- Confirm the chip manufacturer and exact part, credential preparation, material, dimensions, thickness and finish. A chip family name alone is not an order specification.
- Minimum order
- Request the MOQ for your selected chip, material and finish. State the quantity for each artwork and property; multiple designs may have separate minimums.
- Price & delivery terms
- Request unit prices by quantity, the currency, setup charges, sample costs and packing. Confirm whether freight, duties and taxes are included, and the delivery term.
- Production & arrival
- Give your required arrival date and destination country. Confirm production time after specification, sample and artwork approval; shipping and customs need a separate allowance.
Before a production order
Approve a sample in your own system
Agree both the technical test and the sample costs first. An unprinted test card checks the credential; a printed proof checks the artwork and finish.
Agree what will be tested
Confirm the proposed credential, card body and encoder requirements. Ask for sample quantity, sample charges, courier cost and dispatch timing before arranging shipment.
Issue a test credential on site
Have your authorized property team enroll and encode the sample in your current system. A successful reader scan or matching UID format does not prove that a guest credential will work.
Check the complete guest journey
Test the intended room locks and any configured elevator or shared-area readers. Include check-in, expiry and reissue in the test, and record the software, encoder and lock versions used.
Approve the production specification
Record the accepted credential and artwork reference, material, size and finish. Reconfirm these details if your system or card specification changes before a reorder.
For the initial review, share the lock model, encoder/software details and a non-sensitive card reference. Keep guest data, live access credentials and system security keys with your authorized team.
Request test cardsProcurement evidence
What to review before you order
Ask which documents are available for your proposed card and review their scope before approval. A lock manufacturer's specification does not certify a third-party card.
Exact card & chip specification
Manufacturer and part number, credential preparation requirements, card dimensions and tolerances, material, print finish and the approved artwork revision.
Sample acceptance record
The sample reference, encoding setup, doors and readers tested, results and approval date. A factory read check and a property compatibility test answer different questions.
Material & test evidence
Ask which reports apply to the proposed material and finished card. Check the issuer, date, tested item and scope; request sourcing documentation if certified material is part of your specification.
Written quotation & quality terms
Quantity by design, agreed inspection criteria, production schedule, packing, shipping terms and the process for reporting and resolving a manufacturing defect.
A blank specification and acceptance checklist for your team to complete; it is not a certificate or a completed test report.
Review the quality and sample checks guide for the information to agree before production.
Onity key card questions
What cards should we reorder for Onity HT24 or ADVANCE locks?
Confirm whether the installed reader still uses a magnetic stripe or has been converted to RFID. Provide the current supplier SKU and encoder details. For magstripe stock, specify coercivity and encoding format; an HT or ADVANCE label alone is not enough to select the finished card.
Does every Trillium lock use Ultralight EV1 guest cards?
No single guest-card chip is established for all Trillium installations. The Trillium 1.0 documentation lists Classic, Plus, Ultralight and Ultralight C reader options. Your active credential configuration determines which approved card to issue, and newer generations need their own specification check.
Does DirectKey mean we need a different physical card?
DirectKey is Onity’s mobile access technology. Confirm the physical card specification separately with your installer, particularly if the reader or system software changed during the upgrade. Do not choose a chip just because the property offers phone keys.
What information makes an Onity card quote faster?
Send the exact lock and reader generation, software and encoder model, current card SKU, quantity, artwork and delivery destination. If a detail is unknown, a model-label photo can help start identification; it does not reveal the card’s protected configuration.
Do security-updated Onity locks need ULC cards?
Trillium documentation lists MIFARE Ultralight C (ULC) among its reader options, and properties that applied a security update commonly report that Classic cards stopped encoding and the installer specified ULC. That is not a brand-wide rule. Confirm which credential your updated encoder issues, then test ULC samples on representative doors before ordering. Ultralight C (ULC) key card guide
How do we approve replacement Onity cards?
Agree the card specification and sample terms, then have your hotel issue samples with the normal encoder. Test room access, shared access, reissue and expiry on representative readers, including any retrofitted areas, before approving the print run.
Plan your Onity card order
Share your lock system, approximate quantity and destination. Unsure of the chip? Start with the system details you have.