According to the time built-in dynamic password changes, it must be in the bluetooth coverage range to check in, widely used for attendance, patrol.

Key features

Bluetooth: ble4.0;

Broadcast: The interval is 2s. After starting up, the product will be broadcast until the battery runs out

Function: Major config 、Minor config、UUID config ;

Key: one button to switch;

Performance: Products waterproof,cold-proof,shock-proof and high-temperature resistance.

Tamper design: The product has anti-stripping design, the program through the software lock makes it unreadable, cannot change.