Pack Of Ten Fresh Blue T5577 Writeable Rfid Key Fobs 125khz Rewritable Metal And Abs Keychain Tags Em4100 Ready For Rock Solid Home And Office Access Control Systems

Pack of ten blue T5577 RFID key fobs for access control
✔️ 10-Pack blue 40x30x4mm 125kHz rewritable metal ABS tags for locks

These blank RFID key fobs hand you steady 125 kHz entry control for houses and shops. You clip them onto your key ring since the slim profile skips the pocket bulge. The tough outer shell stands up to rain and keeps sweat away.

✅ T5577 chip scans 2.5 to 10 cm from wall mounted readers
✅ Metal insert backed by waterproof ABS cover survives daily drops
✅ Program blank cards fast with any 125 kHz RFID writer tool
✅ Handy backup copies prevent lockouts when main passes wear out

💡 How do you configure unprogrammed 125 khz access fobs for building entry? Feed the initial batch into a handheld duplicator to write master codes. Standard low frequency waves jump over glass doors without latency issues. These handy upgrades save budget headaches during heavy turnover periods.

✝️