The PNM-9084QZ1 has become more compact and lighter to make installation a lot easier even on a ladder. Both PNM-9084RQZ1 and PNM-9085RQZ1 support remote PTRZ (Pan, tilt, rotate and zoom) setup, saving installers time and effort of making adjustments on a ladder to change the setting. The PNM-9084RQZ1 / PNM-9085RQZ1 has built-in IR sensors to each of the four lenses. Each lens and its IR sensors move together when users control the lenses, producing clear images from up to 30 meters even in low-light environments.