1.Power supply mode: 3V AA dry battery
2.Features: The contact area between the probe and the patient's cornea is small, the measurement time is short, and there is no uncomfortable reaction
3.The probe is automatically magnetized, and the needle is automatically withdrawn
4.Measuring range: 3mmHg~70mmHg
5.Measurement error: ±1.5mmHg (3mmHg≤measured intraocular pressure≤25mmHg)
±2.5mmHg (25mmHg≤measured intraocular pressure≤70mmHg)