3. It features consecutive measurement, direct point-sampling and high accuracy of orientation, with mechanical hairspring being used to level at the reflecting point of human cornea
4. Adopting line-shaped sensors of high definition advanced intellectualized electronic systems and digital display which allow the testing results more visible, legible and accurate.
5. The design of LED lamp-house and low-power consumption makes the battery life prolonged
6. The brightness of LED is adjustable
7. +2.00D compensation for the degree of eyesight is available
Specifications:
Range of measurement
Binocular papillary distance: 45~82MM
Left or right papillary distance: 22.5~41MM
Absolute indication error
≤0.5MM
Absolute dissymmetrical error
≤0.5MM
Absolute rounding error
≤0.5MM
Distance of target
30CM~∞
Distance of target
30CM~∞
Power source
Voltage: DC3V
Specification: 5#AA battery
Quantity: 2 pieces
Time for automatic shut-off
About 1 minute after stopping operation, or turn it off manually
