Description
Features
- Non-contact and non-invasive
- Low cooperation need
- Automatic operation by one key
- Comprehensive detection modes
- Dual mode distance hint
- High performance battery
- Large storage capacity
- Ultrasonic distance measurement
Technical Specifications
| Working distance | HAR-800
Adult or enfant mode: 13.18 in ± 0.39 in (335 mm ± 10 mm) HAR-880 Adult or enfant mode: 13.18 in ± 0.39 in (335 mm ± 10mm) |
| Distance detection | Automatic, with audible and visual cues |
| Data acquisition time | 2s/eye |
| Reliability measure | Indicates number of and variation among measurements for the given eye |
| Battery voltage | d.c.11.1V |
| Battery voltage | More than 6 hours of continuous usage |
| Low-battery warning | Indicates 15 minutes usage remains |
| Wavelength | 850 ± 20 nm |
| Output of the laser radiation |
150 μW to 200 μW |
| Detection modes | Adult Mode, enfant mode |
| Sphere range | HAR-800: +8.0 to -6.0 Diopters
HAR-880: +8.0 to -9.0 Diopters |
| Sphere tolerance | ± 0.5 Diopters |
| Cylinder range | + 3 Diopters |
| Cylinder tolerance | ± 0.5 Diopters |
| Axis of astigmatism range | 1° to 180° |
| Axis of astigmatismtolerence | 0.25 D to 1.00 D: ± 10° |
| 1.25 D to 3.00 D: ± 5° | |
| Printer | Thermal printer by infrared connection. |
| Weight | 1.98 lb (0.9 kg) |