Features:
1. This PD Meter has self-check function to make measurement more accuracy.
2. Vertical Distance can be also measured.
3. It is popular for consecutive measurement, direct point-sampling and high accuracy of orientation. Mechanical hairspring is used to level at the reflecting point of human cornea.
4. Featured for the line-shaped sensors of high definition, advanced intellectualized electronic systems and digital display, the testing results could be visible, legible and precise.
5. Energy-saving LED lamp makes the battery long lifespan.
6. The operator can adjust the brightness of LED lamp according the testing situation.
7. +2.00D compensation for the degree of eyesight is available
Parameters:
1. Range of measurement: Binocular pupil distance: 45mm to 82mm
Left or right: 22.5mm to 41mm
2. Absolute indication error: ≤0.5mm
3. Absolute dissymmetrical error: ≤0.5mm
4. Absolute rounding error: ≤0.5mm
5. Distance of target: 30cm~∞
6. Power source: Voltage: DC3V
Specification: 5#AA battery
Quantity: 2 pieces
7. Automatic shut-off: About 1 minute after stopping operation
8. Size: 221*166*63mm
9. Weight: 0.68kg
Packing:
10pcs in one carton
Gross weight: 10kgs
Dimension: 41*30*49cm