The PL400 Bluetooth Smart Electronic Lock is a slave lock designed to operate exclusively with the GL600SM master lock, ensuring enhanced, controlled security for your assets. Equipped with a high-capacity 10,000mAh rechargeable battery, BLE5.2 support, and RFID capability, the PL400 delivers reliable, efficient security 24/7. Its customizable lock rope and IP67 waterproof rating make it versatile for diverse conditions, providing robust protection with ease.