1. Unlocking by RFID card + mechanical key in emergency

 2. Support card type: M1fare S50 card, 13.56MHz

 3. Material: stainless steel

 4. Powered by 4pcs AA Alkaline battery

 5. Low voltage alarm

 6. Door ajar alert

 7. Hidden cylinder

 8. External power poles in case out of power

 9. Warranty: 2 years, lifetime maintenance

 10. Free hotel software, free SDK to interface with the PMS

 11. Front panel size:W76.5*H291.1*D30.4mm,back panel size:W76.5*H242*D66mm

Specification:

Card type	RF ID card
Card frequency	Mifare One S50 card
Reading Distance	2CM
Power Supply	4×AA
Low―voltage Index	4.8V(±0.2)
Battery life	≥10000times
Mechanical life	≥100000times
Reliability	≥30000times
Mechanical life	≥100000times
Static current	≤20uA
Dynamic current	<200mA
Working temperature	-20℃~55℃
Storage temperature	-30℃ ~ 70℃
Working humidity	15%RH ~ 93%RH

Hotel Management Diagram: