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TW-2213/TW-2213A/TW-2213B PD Meter

  • TW-2213/TW-2213A/TW-2213B PD Meter
  • TW-2213/TW-2213A/TW-2213B PD Meter
  • TW-2213/TW-2213A/TW-2213B PD Meter
Model No.︰TW-2213
Brand Name︰Towoo
Country of Origin︰China
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Product Description

TW-2213:
Featuring consecutive measurement, direct point-sampling and high accuracy of orientation, with mechanical hairspring being leveled at the reflecting point of human cornea.
Using high-definition line-shaped sensor, advanced intellectualized electronic system and digital display to make testing result more visible, legible and accurate.
LED light source and low power consumption make battery life prolonged.
+2.00D eyesight compensation
Accuracy self-check function
VD measurement function
Many technology and design patentsMAIN TECHNICAL INDEXES
1、Range of measurement:Binocular pupillary distance: 45~82 mm
Left or right pupillary distance: 22.5~41 mm
Indication error: ≤0.5 mm
Rounding error: ≤0.5 mm
Distance of target: 30 cm~∞
Power source: Voltage:DC 3V
Specification:5# AA battery
Quantity:2 pieces
Time for automatic shut-off:
About 1 minute after stopping operation, or turn it off manually.
Size: 233mm(L)×165mm(W)×70mm(H)
Weight: 0.68kg

TW-2213A:
Product characteristics:
Main feature use exactitude optical configuration,measure more
correctly,with adjustable knob,adjust the dista.

standard:
Method of measurement:cornea reflction light coidence method
Rang of measurement:44 to 83mm (both eyes),22 to 41.5mm (each eye):
Graduations:0.5mm
Range of focusing point:30 to infinity

Technicel parametars:
Power supply:6V DC (lr03 batteriesX4


TW-2213B:
Product characteristics:
Main feature use exactitude optical configuration,measure more
correctly,with adjustable knob,adjust the dista.

standard:
Method of measurement:cornea reflction light coidence method
Rang of measurement:44 to 83mm (both eyes),22 to 41.5mm (each eye):
Graduations:0.5mm
Range of focusing point:30 to infinity

Technicel parametars:
Power supply:6V DC (lr03 batteriesX4
WEIGHT:0.8KG

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