Overview
Hospitality Enviro Tech portable device handheld refractometer can check the refractive error precisely for diverse groups of people using the ultrasonic ranging, cross line, flashing light and sound technology and then to find out the probably potential refractive problems. It has so many merits, such as portable, fast and accurate testing, non-contact and non-injury to your eyes. It is fit for the refractive screening of huge population since that 5 second is enough for both eyes test. We all know that the refractive status is important for children just because that if doctor cannot find the long-lasting refractive error and cure it properly, children would become amblyopia sadly someday or lose the best chance to treat the lazy eye and finally become the permanent amblyopia. The special model for children testing is the best way for child screening. So, it is not only for adults, but also for infants and disabled patients.
Technical Specifications
| Working Distance | 13.189 in ± 0.394 in (335 mm ± 10 mm) |
| Data Acquisition Time | 2 sec/eye |
| Battery Voltage | 11.1 V |
| Wavelength | 850 nm ± 20 nm |
| Output Of The Laser Radiation | 150 µW to 200 µW |
| Sphere Range | +8.0 to -6.0 Diopters |
| Sphere Tolerance | ± 0.5 Diopters |
| Cylinder Range | +3 Diopters |
| Cylinder Tolerance | ± 0.5 Diopters |
| Axis Of Astigmatism Range | 1° to 180° |
| Axis Of Astigmatism Tolerance | 0.25 D to 1.00 D |
| Weight | 31.74 oz (900 g) |
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