The Zosi ZM4182 is a very low cost “Eyeball” style analogue HD dome given an IP66 rating and IR illumination. It can provide images in four different formats to suit most analogue DVRs; CVBS (D1), AHD, TVI or CVI. It has an IR cut filter for Day / Night operation with an array of 24 infrared LEDs controlled by a front facing light sensor for night-time illumination.
Getting started
The camera requires a 12V input into its power jack and provides video output via a BNC flying socket. Current draw was found to be around 60mA in colour mode and 230mA with LEDs on, so a 12 volt PSU with sufficient headroom for start-up current should be used. The two cables feed out from a joystick module that has a combined cable feeding into the camera. The joystick is used to select the video mode and to access the on-screen setup menus. A small cover is provided to protect the joystick actuator from inadvertent pressing when being installed.
The camera has a removable mounting plate with three fixing holes. This base is removed by rotating the assembly anti-clockwise against the surround when viewed from the bottom.
The joystick can be used to set the initial video output format without needing to view the video, the default output is SD (CVBS D1) composite video. Holding the joystick to the left for around 5 seconds will set it to AHD, right selects TVI, down selects CVI and Up returns to SD.
The two halves of the globe appear to form a sealed unit; there is no apparent way to open the device without damage.
Menu options
A short press on the joystick button brings up the on-screen menu list. This is simple white text with no edging so does not necessarily show up well depending on the background.
Read the full review in the October 2022 edition of PSI magazine
