The virtual code that is commonly used in smart door locks today is the first of Gaidman's initiative. As early as 1990, GATEMAN has been established, is the originator of the electronic lock brand of entrance doors, with a market share of more than half, sales ranked first all year round, and is worthy of the name of Korea's No. 1 smart door lock brand. In 2008, GATEMAN was incorporated into the ASSA ABLOY Group, one of the world's top 10 security companies, and has a number of well-known brands such as Panpan and Modila. After GATEMAN entered the Chinese market, the Chinese name has been changed several times, and the current "Gaideman" is actually registered and held by its Chinese agent, Shanghai Gaichen Company.

Among the 7 fingerprint locks sold by GATEMAN, only the FK521 and R100 are push-down handles, and the rest are push-pull handles. However, the structure of the GATEMAN's push-pull handle is different from the usual one, and it is more like a vertical car door handle. In other aspects, GATEMAN fingerprint locks all use semiconductor fingerprint recognition technology and electronic lock body, with anti-peephole opening function, cannot be linked to the heaven and earth lock, and the emergency power supply is a 9V block battery that is not easy to buy on the market.

GATEMAN Korean original imported fingerprint locks have A330, B360, AK720 and A200, and their biggest feature is that there is no mechanical keyhole. But no keyhole does not mean safe, according to the requirements of the industry standard GA 701-2007 "General Technical Conditions for Fingerprint Anti-theft Locks", fingerprint locks must be set with a mechanical key. Fingerprint locks without mechanical keys can be regarded as unqualified products, and if a fire breaks out and melts the internal wiring of the door lock, resulting in the failure of the electronic part, most of the door locks are difficult to open again, and there is no way to talk about security.

Relatively speaking, the PASS700 of 4990 yuan is a better choice among GATEMAN products. It adopts the highest anti-theft level of C-level lock cylinder, supports mobile APP, and has the most abundant functions, including silent mode, temporary password, high temperature fire alarm, anti-demolition and anti-trial opening alarm, etc., which further improves the practicability and safety of the product. In addition, even compared to other brands, the PASS700 unlock is extremely diverse, in addition to fingerprints, passwords and keys, it can also be unlocked through Bluetooth, magnetic cards and remote control. However, it should be reminded that more diverse unlocking methods also mean more diverse cracking methods, and the security of the door lock may be reduced.

In terms of after-sales, GATEMAN is slightly inferior to Silech, only providing free on-site installation services nationwide and setting up 24-hour telephone services