MIWA specializes in high-security locking systems, including electronic hotel card locks, RFID access controls, and Bluetooth Low Energy smartphone key solutions.
MIWA Lock Co., Ltd. is a premier manufacturer of high-security door locks and access control systems, serving the global hospitality and commercial markets. Renowned for its advanced electronic hotel card lock technology, MIWA provides robust solutions like the ALV2 and ALV3 series, which utilize contactless IC cards (Mifare) and Bluetooth Low Energy (BLE) for seamless guest access via smartphones.
With a strong focus on quality and reliability, MIWA products are designed to enhance security while simplifying operations for facility managers. The company's range extends from standard mechanical locks to sophisticated electronic locking systems integrated with property management software.
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For locks equipped with BLE (such as ALV2/ALV3 series), launch the dedicated hotel app, tap the unlock button, and hold your smartphone near the lock reader until the LED flashes green.
A red light typically indicates that the card or key used is invalid or verification failed. If the red light flashes in a specific pattern, it may indicate a low battery or other system error.
The main batteries (typically four AA alkalines) generally last about 1.5 years with average usage (approx. 10 operations per day). The system will alert property staff when voltage ist niedrig.
Most MIWA electronic locks are designed with emergency override capabilities. Hotel staff can use an emergency card or a mechanical key override/cylinder if installed, or an external power supply unit depending on the model.