High Performance Durable Touch Keypad digital door lock with Random Security Coding. Samsung"s SHS-7020 has 3 access methods PIN, Card or Mechanical Key. The RF cards contain a Mifare ISO14443A chip operating at 13.56 MHz. UL-Listed Cylindrical Tubular Latch with 2-3/4 Standard Backset and Weather Resistant. Commercial or residential use. * Automatic / Manual Locking Mode * Passage Mode * Material: Zinc, ACRIL, Polycarbonate * Non-Handed * UL-Listed Cylindrical Tubular Latch with 2-3/4" Standard Backset * Weather Resistant * Software: Audit Trail (5,000 Events) & PC Enrollment (Optional) * Finish Satin C * Backset 2-3/4" standard * Handing Universal * Dimensions: 3.38" x 8.74" x 2.71" * Weight: 6 lbs.