Secura Key's RK65K provides standalone proximity card access control for 65,000 users in a business-card sized package. This rugged, weather-resistant unit features a solid-state relay, REX input and a Wiegand output for future expansion. Dynascan® auto-tuning allows metal mounting with superior read range. Use with proximity cards or key tags. For more information, visit our website at www.securakey.com.