How to choose anti-theft devices?
Step 1: Select as needed
1. Small supermarkets/convenience stores: Optional radio frequency (RF) system, cheap and sufficient.
2. Medium and large-sized supermarkets/clothing stores/high-value goods (cosmetics, alcoholic beverages, etc.) : The AM system is a must-have, with a detection rate of over 95%.
3. Libraries/bookstores: EM electromagnetic wave systems should be selected for those requiring borrowing and returning functions, while RF radio frequency systems can be chosen for those not requiring borrowing and returning functions.
4. Libraries/medium and large-sized supermarkets/clothing stores/high-value goods (cosmetics, alcoholic beverages, etc.) : RFID UHF system or RFID-AM dual-frequency system can be selected.
Step 2: Label type matching
1. Soft label: For single use only, suitable for attaching to product packaging (requires a demagnetizer).
2. Hard tags: Reusable, suitable for clothing and bags (requires a dedicated nail remover).
Step 3: Core performance indicators
1. Detection rate and false alarm rate: The detection rate of a high-quality acoustic-magnetic system should be ≥95%, and the false alarm rate should be < 1%.
2. Anti-interference ability: Check whether it has an environmental adaptive function to avoid false alarms triggered by mobile phones, metal items, etc.
Step 4: Key Points of Suppliers
Qualification: CE/FCC certification.
