High resolution image to record visitor's image up to 64 pictures under your absence. 64 single pictures stored in memory. 　 You can review the visitor’s image and time 　 Working with black & white system. 　 Surface mounting combined type with monitor of PH-855 / S-913 system; But PH-855M monitor must be modified before connecting KVM-301. For the sake of correct installation, please make an annotation in your order whether PH-855M is combined into picture memory.