... -motors which ensure 500,000 running times Intelligent Hotel RF lock ,Model:SWRL828JMaterial:304 Stainless steel; Surface treatment:PVD imitates the ... for PCB, stable and durable;4. International standard five latches lock which pass the testing of 300,000 times.5. Anti ... unlocking records can be stored in the chip of door lock, even the mechanical keys opening record without exception;8. Normal ...