It is an ideal choice to install on door frame. IP66 Waterproof is very sitable for outdoor use. It support Master card and Master fingerprint for easy opeation. 100 Fingerprints and 3000 Cards. O-99 seconds (5 seconds default).> Embedded Design with Mini size. > Metal case and IP66 Waterproof. > User capacity:800 Fingerprint and 3000 Cards. > One programmable relay operation. > Latch mode to hold door and gate open. > Tri-colour LED status display. S99this is Mini Metal Case Standalone RFID Access Control with Embedded Design. It support Master card for easy opeation. > User capacity:support 3000 Cards. This item is in the category "Home & Garden\Home Improvement\Home Security\Door Entry Systems & Intercoms". The seller is "discountmix" and is located in this country: HK. This item can be shipped worldwide.