Feature:1. TWO MODES OF OPERATION: Eyepiece support manual or automatic white balance, manual or automatic exposure, stainless steel metal case is durable2. SENSITIVE AND ACCURATE: Electronic eyepiece with 1 or 3in sensor, progressive scanning, possess low illumination and high sensitivity3. CLEAR IMAGE: Eyepiece adopt 960 TV cable hardware, professional micro image sensor, bring clear imaging, good color reduction, The factory default is PAL4. PERFECT REPLACEMENT: Used to replace the eyepiece on conventional microscopes, converting existing conventional microscopes with 23mm or 30mm eyepiece diameters into digital microscopes5. MULTIPLE FEATURES: More powerful eyepiece with new features such as measurement, calibration, note taking and comparisonSpecification:Item Type: Electronic EyepieceMaterial: ABS, stainless steelBasic Parameters: Microscope Connection Mode: Diameter Approx. 23.2mm or 0.91in interface, directly inserted into the eyepiece barrelOutput Signal: Video, CVBSDigital Image: NoneImage Sensor Size: 1 or 3 inch, Approx. 4.840 x 3.611mm or 0.19 x 0.14inSensor Horizontal Resolution: 960 TV cableSensor Effective Pixels: PAL: 968(H)x488(V), NTSC: 960(H)x480(V)Image Control: Manual or automatic white balance, manual or automatic exposureMinimum Illumination: 0.005 LuxSignal to Noise Ratio: 43.6dBDynamic Range: 65.9dBWorking Voltage: DC 12V (working current: 90mA)Power Consumption: 140mWOperating Temperature: -20-50Relative Humidity: andlt = 90 percent .Package List:1 x Eyepiece1 x Floppy Disk1 x User Manual