BEST 40H Visual Indicator Thumb-Turn option from STANLEY Security
This option from Stanley’s 40H mortise lock series is adapted to meet recent “lockdown” policy application demand from schools and universities, among other enterprise applications. The thumb-turn allows users to quickly and easily lock rooms from the interior of the door. The indicator uses simple, bold, color-coded “secured” (red) and “unsecured” (green) visual indication to ensure the door has been locked correctly and quickly.