12 Best Electronic Safe Locks Reviewed and Rated in 2021
2021-10-2u2002·u20024. Sargent & Greenleaf 6120 Electronic Safe Lock. The 6120 is similar to the Spartan in many ways, with some improvement. Like the Spartan, the 6120 is EMP-resistant, a specialty of the S&G brand. Both safe locks look just about the same and are both of standard size to make retrofitting easier.
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