Features Anytime-anywhere handheld measurement Excellence of advanced functions Improved usability by innovative functionality Measurement method Measurement mode Full graphic LCD with 3.5-inch color screen The full graphic 3.5-inch color LCD is 40% larger than the previous model. Clear screen design and intuitive icons similar to the ARK-1/AR-1 series provide high user-friendliness. Melody function For inexperienced patients such as children, the melody function can ease patient anxiety and allow greater cooperation during measurements. Pupil zone imaging method The HandyRef-K/HandyRef analyzes a wide area (Max. 4 mm diameter) pupil zone. By measuring the light coming through the pupil zone in a wide area, more accurate measurement data closer to the subjective refraction is now possible. Store@drpridemart.com Orders@drpridemart.com drpridemart@gmail.com Call/Sms: +16122204201 Or +447445786725 WhatsApp: +447445786725 Or +16122204201 Telegram: Drpridemart Or +16122204201