Optional Extras - AT-1 Applanation Tonometer Optional Extras - AT-1 Applanation Tonometer has a Depression area: 7.354mm2. Diameter of measurement depression area: 3.06mm. Characteristics: - Measurement range: 0?80mmHg. - Minimal scale: 2mmHg. - Measurement error: ±1mmHg.
- Type of instrument:tonometer