Description
CE
Differences of LY Series PD meter | ||
Model# | Vision distance adjustment | Reading gossamer |
LY-9AT | By Handle | Metal |
LY-9A | By pressing | Metal |
LY-9B | By pressing | Digital |
LY-9C | By Handle | Metal |
LY-9D | By pressing | Metal |
Parameter |
|
Effective range of measurement |
Binocular pupillary distance45-80mm Left or right pupillary distance22.5-40mm |
Indication error | ≤0.5mm |
Distance of targent | 30cm ~∞ |
Electric Voltage | DC 4.5V(3pcs 5# AA battery) |
Power | 10W |
Weight | 0.6kg |
Volume | 21.5(L)x15(w)x50(H)cm |