TWO MODES OF OPERATION: Eyepiece supports manual or automatic white balance, manual or automatic exposure. Stainless steel metal case. SENSITIVE AND ACCURATE: Electronic eyepiece with 1/3 inch sensor, scanning, low illumination, and high sensitivity. CLEAR IMAGE: Eyepiece adopts 960 TV lines hardware, professional micro-type image sensor, delivers clear imaging and good color reproduction. Factory default is PAL. PERFECT REPLACEMENT: Designed to replace eyepieces on conventional microscopes, converts existing microscopes with 23mm or 30mm eyepiece diameters into digital microscopes. MULTIPLE FEATURES: Enhanced eyepiece with features such as measurement, calibration, note taking, and comparison. Item Type: Electronic Eyepiece Microscope Connection Mode: 23.2mm / 0.91in interface, directly inserts into the eyepiece Output: Video, CVBS Digital Image: None Image Sensor Size: 1/3 inch, 4.840 x 3.611mm / 0.19 x 0.14in Sensor Horizontal Resolution: 960 TV lines Sensor Effective Pixels: PAL: 968(H) x 488(V), NTSC: 960(H) x 480(V) Image Control: Manual or automatic white balance, manual or automatic exposure Minimum Illumination: 0.005 lux Signal to Noise Ratio: 43.6dB Dynamic Range: 65.9dB Working Voltage: DC 12V (working current: 90mA) Power Consumption: 140mW Operating Temperature: -20°C to 50°C Relative Humidity: ≤ 90% Color: Black Material: ABS Package Contents: 1 x Electronic Eyepiece Note: Other items not included. Lighting and display differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3cm.