Sentry Knogo MM1 5218 Library Security System

Sentry KNOGO MM1 5218 Library Security System

The Knogo™ MM1 5218 system is an effective theft deterrent for books, CDs, DVDs, and other collection items.  The MM1’s contemporary design fits into any library’s décor and can protect aisles up to 42” wide.


  • Detects all industry-standard EM security tags, including 3M Tattle-Tape™
  • Detects virtually invisible EM security tags that can be hidden in books, DVDs, and CDs
  • Single, Dual, and Multiple Aisle configurations
  • Audible and visible alarm
  • Direct mount or buried conduit installation
  • Dimensions: W 26” x H 56.5” x D 3”
  • Voltage: 110 V/220 V
  • Antenna Weight 70 lbs

Single Aisle System (2 Antennae) $6,900 (Shipping & Installation not included)
Dual Aisle System (3 Antennae) $9,500 (Shipping & Installation not included)

If you’re ordering from an office or library supply company you are paying way too much!

Ordering Methods

Fax:  612-625-3569
Phone:  612-625-9527 or 800-462-5348