Takagi AT-1 Applanation Tonometer
| Model | AT-1 | ||||
| Model of slit lamp |
SM-90 SM-90N |
SM-70 SM-70N |
SM-30/SM-30N 10/10N |
SM-4/SM-4N 2/2N |
300XL |
| Tonometer main unit | S12-12 | S12-12 XL | |||
| Tonometer base | ― | S12-13 | S12-14 | S12-15 | S12-16 |
| Type of | AT-1 | AT-1 Type 7 | AT-1 Type 3 | AT-1 Type 4 | AT-1 Type XL |
| Measurement method | Depression type (observed with left eye on the slit lamp) | ||||
| Depression area | 7.354mm2 | ||||
| Diameter of measurement depression area | 3.06mm | ||||
| Measurement range | 0～80ｍｍＨｇ | ||||
| Minimal scale | 2ｍｍＨｇ | ||||
| Measurement error | ±1ｍｍＨｇ | ||||
| Equation for conversion from mmHg to kpa | 1ｍｍＨｇ= 101325/760Pa ≒133.3Pa 100Pa = 0.1kPa | ||||
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