Rebound Tonometer SW-500. Wireless data printing Esay to learn ,easy to use Lightweight and handy ... SW-500: With vertical and horizontal two working modes, wireless output print data. The equipment is used to measure intraocular pressure, using ... ) Measurement can go along both in standing and lying postureWireless data printingEsay to learn ,easy to useLightweight and handyNo anesthesia, avoiding ...