HAR800 HANDHELD VISION SCREENER

Features:

1.Non-contact and Non-invasive, safe light power2.Child-friendly,suitable for infants

3.Speedy inspection, one key operation

4.Accurate result, including myopia, hyperopia, astigmatism, axial and anisometropia5.Comprehensive detection modes

6.Easy targeting

7.Ultrasonic distance measurement

8.Thermal Printer


OPTICAL

PARAMETERS

Mode

Infant mode

Adult mode

Myopia mode

(HAR-880 only)

Sphere range

-6.0D to +8.0D

-6.0D to +8.0D

-9.0D to +2.0D

Sphere intervals

0.25D/0.1DP

0.25D/0.1D

0.25D/0.1D

Sphere tolerence

土0.5D

土0.5D

±0.5D

Cylinder range

-3.0D to +3.0D

-3.0D to +3.0D

-3.0D to +3.0D

Cylinder intervals

0.25D/0.1D R

0.25D/0.1D

0.25D/0.1D

Cylinder tolerence

±0.5D

土0.5D

土0.5D

Axis of astigmatism range

1°to 180

1 °to 180°

1 °to 180°

Axis of astigmatism intervals

1°

1°

1°

Axis of astigmatism tolerence

0.25D to 1.00D

±10°

±10°

±10°

1.25D to 3.00D

±5°

±5°

±5°

OIntervals are adjustable







PARAMETERS

Working distance

Adult/nfant mode

335±10mm

Confidence level

10

Myopia mode

(HAR-880 only)

268±10mm

Output of the laser radiation

150 to 200uw

Wavelength

850±20nm

Data acquisition time

2s/eye

Battery voltage

d.c.11.1v

Distance measurement

Automatic, with audible and visual hint

Battery life

More than 6 hours of continuous usage

Low-Battery warning

lndicates 15 minutes usage remains

Description

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