1. TWO MODES OF OPERATION: Eyepiece support manual or automatic white balance, manual or automatic exposure, stainless steel metal case is 2. SENSITIVE AND ACCURATE: Electronic eyepiece with 1/3in sensor, progressive scanning, possess low illumination and high sensitivity 3. CLEAR IMAGE: Eyepiece adopt 960 TV cable hardware, professional micro-type image sensor, bring clear imaging, good color reduction, The factory default is PAL 4. PERFECT REPLACEMENT: Used to replace the eyepiece on conventional microscopes, converting existing conventional microscopes with 23mm or 30mm eyepiece diameters into digital microscopes 5. MULTIPLE FEATURES: More powerful eyepiece with features such as measurement, calibration, note taking and comparison Item Type: Electronic Eyepiece Microscope Connection Mode: Diameter Approx. 23.2mm/0.91in interface, directly inserted into the eyepiece barrel Output: Video, CVBS Digital Image: None Image Sensor Size: 1/3 inch, Approx. 4.840 x 3.611mm/0.19 x 0.14in Sensor Horizontal Resolution: 960 TV cable Sensor Effective Pixels: PAL: 968(H)x488(V), NTSC: 960(H)x480(V) Image Control: Manual or automatic white balance, manual or automatic exposure Minimum Illumination: 0.005 to Noise Ratio: 43.6dB Dynamic Range: 65.9dB Working Voltage: DC 12V (working current: 90mA) Power Consumption: 140mW Operating Temperature: -20-50℃ Relative Humidity: less than equal 90% Color:Black Material:ABS Package Contents: 3 x Electronic Eyepiece Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.