How to Reset Admin Master Password Youhe YH-688

How to Hardware Reset and Basic Programming of the Door Access Control Unit | Youhe YH-688

How to change Admin / Master Password YH-688, D300, YH688 How to Hardware Reset Admin / Master Password YH-688, D300, YH688 How to add RFID Cards YH-688, D300, YH688 How to add a Common Password YH-688, D300, YH688 

How to Factory Reset YH-688, D300, YH688ers

Basic Operations

Size:  120mm×78mm×22mm

Validation: card/password

Operating Voltage: DC12V

Current Drain:＜100mA

Capacity of Recording:1000 standard user

Advantages

    ▶Simple Programming,Easy Operation

    ▶Adopt function steady card reader of blocks

    ▶Keypad Locks for 30 Seconds After 10 False Entries

    ▶Can be Connected with Door-open Button and Doorbell

    ▶Non-volatile Memory in Power Failure

    ▶Tamper Switch can be Connected to Security Alarm System

Youhe YH688 User Manual

Youhe TF119 User Manual