[Smart fingerprint lock SLA311](https://bmsbox.shop/product/smart-lock-apartment-sla311/) has used high-quality aluminum material in the design of its modern body. BMS box smart handle is one of the reliable Iranian brands that is responsible for the production and assembly of the handles, and for this reason, despite the high quality, it has a lower price than the market price. Biometric fingerprint sensor with blood flow detection is an important option in the structure of this product. Usually, for installation on anti-theft doors, it is a smart choice to use the BMS Box SLA311 smart handle.\r\n\r\n## [Features of smart lock BMSBOX-SLA311](https://bmsbox.shop/product/smart-lock-apartment-sla311/) \r\nThe BMS Box SLA311 smart handle has been able to have something to say in the market of smart handles and digital locks due to having a series of unique features. The key features of this product are:\r\n**• Connection and online management with Tuya application\r\nPassword definition (password length 6 to 12 digits)\r\n• Has fake pin code and virtual password\r\n• Has a biometric fingerprint scanner\r\n• IC card acceptance \r\n• Super C mechanical key\r\n• Accepting 9 admins and 300 users\r\n• Two-step login mode \r\n• Has a forced entry alarm\r\n• Has a test and error alarm\r\n• Low battery alarm\r\n• Has an emergency power source\r\n• Has a factory settings button\r\n• Child lock and private space lock\r\n• Has a night lock\r\n• Anti-scratch touch keyboard\r\n• Gray\r\n• Operating temperature from -20 to +60 degrees Celsius\r\n• Humidity level of RH operation in the range of 20 to 93% \r\n• Suitable for residential, commercial and office buildings\r\n• Suitable for anti-theft doors, wooden doors, steel doors, stainless steel doors, aluminum doors from 4 to 11 cm in diameter**\r\n\r\n## The advantages of the smart BMS box SLA311 handle \r\nThe advantages that this smart fingerprint handle [BMSBOX](https://bmsbox.ir/) has assigned to itself are not few. Briefly but usefully, if we want to examine some examples of the benefits of this product, including:\r\n\r\n### Aluminum body material\r\nThis smart password lock is made of a high-quality material, aluminum. This metal is very light weight and resistant to corrosion, ductility and heat. The compatibility of this material with the environment should not be ignored. Therefore, it has the ability to recycle. Also, the anti-shock system on the handle causes the warning alarm to be activated if the body is damaged.\r\n\r\n### Backup battery\r\nAnother advantage of this card lock is the backup battery of the Micro USB model. When the digital lock circuit power fails, it is the backup battery that protects the information. The handle is equipped with a low battery alarm system. Therefore, at the time of hearing and seeing this alarm, you can open and close the handle up to 100 more times, but it is better to fully charge the internal battery during it and before the handle turns off, so that the battery life is not damaged and the performance Do not have a problem with the handle.\r\n\r\n### emergency power source\r\nWhen the battery is inside
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