Used EAS Equipment: Compatibility Checklist
Evaluate secondhand towers and bundled security supplies by model, condition and checkout compatibility before committing to a purchase.
Identify what is actually included
Used retail security equipment can arrive as part of a store fixture purchase or a separate listing. Begin with an inventory, not the seller's shorthand description. Request photographs of the model and serial labels, the number of towers, power supplies, controllers and mounting parts. Ask whether the photographs show the actual units being offered.
Record which components were demonstrated together and which were added to the bundle later. A working light or an alarm sound does not establish that a complete system is ready for your entrance. Ask a qualified supplier or installer to review the equipment list before you arrange transport or installation.
Check technology and checkout separately
Two common EAS formats are 58 kHz AM and 8.2 MHz RF. They are different technologies, so an RF supply should not be substituted for an AM supply merely because it looks similar. Use the exact model information to confirm the detection system and the proposed tags or labels.
Hard-tag removal is a separate compatibility question. The tag's lock must work with the intended detacher. Label deactivation likewise requires a suitable device for that label. SensorTags' checkout-tool guide distinguishes magnetic-release, SuperTag and Gator families rather than treating the brand name as a universal match. Have the seller or supplier identify the complete combination in writing.
Inspect condition without guessing at repairs
Ask about prior installation, storage conditions, known faults and any repairs. Review photographs for missing covers, damaged connectors or incomplete mounting hardware, but do not treat photographs as an electrical or functional inspection. Have a qualified installer assess power requirements and the condition of equipment before it is put into service.
Clarify the meaning of descriptions such as used, refurbished or tested. Ask what work was performed, what test was run and whether a dated record is available. Establish who handles a fault discovered during installation, including the practical cost of packing, shipping and getting the store operating again.
- Actual model numbers and a complete parts inventory.
- A description of the test and the tags or labels used.
- Written condition, warranty and return terms.
- Availability of required parts and installation support.
Check the new location before accepting the bundle
Equipment that served another shop still needs a plan for your premises. Provide entrance measurements, photographs, nearby fixtures and the intended checkout arrangement. Ask the installer to confirm the required tower configuration and whether any additional parts or setup work are needed.
Request a total estimate that separates the purchase from transport, installation, configuration and replacement supplies. If a proposal depends on finding discontinued parts, make that dependency explicit. A bundle is useful only when you can identify a practical route from the delivered equipment to a supported working setup.
Treat a box of mixed tags as a separate purchase
Do not let a large tag quantity stand in for an equipment assessment. Ask whether the box contains one identified model or several families, whether pins are included, and whether the sample shown represents the whole lot. Record how quantities were counted and how damaged or unmatched pieces are handled under the sale terms.
Give the supplier photographs and examples from every distinct group before ordering checkout tools. Keep unidentified tags separate from approved stock until they have been assessed. When comparing the bundle with new supplies, compare the number of usable, compatible items rather than the gross count advertised in the listing.
Accept it against an agreed checklist
Before payment terms are finalized, agree what the seller will demonstrate and when you can inspect the equipment. Include representative tags or labels and the authorized checkout process. Keep the listing, invoice, equipment photographs and written compatibility answers together so future purchases can refer to the same models.
SensorTags is our preferred starting point for comparing replacement supplies and asking about a complete system quote. That placement is promotional; we have not independently tested the alternatives. Confirm current stock, product condition and compatibility directly. If the bundle cannot be identified or supported, compare it with a documented complete proposal before deciding.