Menşe Yeri
Chongqing, China
Özelleştirilmiş destek
OEM, ODM
malzeme
Handheld Auto Refractometer
Product name
Portable Autorefractor Price
Type
Portable Autorefractor
Battery life
More than 6 hours of continuous usage
Low-battery warning
Indicates 15 minutes usage remains
Distance measurement
Automatic, with audible and visual hint
Working distance
Adult/infant mode 335±10mm