Product Description ? Visual Field Analyzer Perimeter ? ? Specification: Radius of stimulator: 300mm±5mm Stimulating source of LED: Two visual lights: yellow and red. Stimulating strength: From 0nt (0asb) to318.310nt (1000asb), have 14 degree to adjust, the error is±10%. Error of background brightness:4asb±10% Light spot: Diameter is 2mm +/- 0.25mm. The number of stimulating and the stimulating time: A.388 spots (Red light: 61spots, yellow: 327spots); B: stimulating retention time: 0.2s--2.0s, the program can adjust (±5%); C: stimulating spacing interval: 0.5s --2.0s, the program can adjust (±5%); Window of eye-position tracking: White-black CCD, directly tracking the?? testing eye; The length of chin rest: up-down: 80mm±10%; ?right-left 115mm±10% Eye position tracking: When blinking, the system will alarm automatically. ? Working Environment Environment temperature: 5degree –40degree Relative humidity: ≤85% Atmospheric pressure: 700hPa--1060hPa Power: AV 220V±22V; Frequency: 50Hz±1Hz Input power: ≤300W ? Transport and Storage Prevent the instrument from damp, being inverted and being shaken violently. Keep it in the room in which the relative humidity is less than or equal to 85 percent, the environment temperature is between –40 degree and 55 degree, the scope of air pressure: 500hpa~1060hpa and well ventilated without corrosion gases. ?? ? Related Products Related Products ?? Packaging & Shipping Export Standard Packing ?Shipping ?? Our Services Overseas service is available. ? ? Company Information ?We are professional machinery supplier. ? FAQ ?Any question, please contact with us. ?