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  • LEA NUMBERS® cards 40 m / 60 m 52124

LEA NUMBERS® cards 40 m / 60 m 52124 LEA NUMBERS® cards 40 m / 60 m 52124
The Symbol : 252400

LEA NUMBERS® cards 40 m / 60 m

245.00
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The Weight Of The 0.15 kg

Zamówienie telefoniczne: 22 651 82 85

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LEA NUMBERS® cards 40 m / 60 m

5 number cards each for use as individual cards or placed in a row, 

Size 60 m Cards: approx. 15.25 cm x 22.9 cm,

Size 40 m Cards: approx. 10.2 cm x 15.25 cm, 

Good-Lite: 272400

 
Aby ustalić ostrość wzroku należy skorzystać z następującego wzoru: 
VA=Viewing Distance Used(meters)/M-wartość
W zestawie: 
60M kart (21.9 cm x 21.9 cm), 40M kart (15.25 cm x 15.25 cm).



 PDF DocumentInstrukcja użytkowania

 
 PDF DocumentPrzelicznik skali Decimal/Snellen
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