The Topcon CT-90A is a non-contact tonometer used by eye care professionals to measure intraocular pressure (IOP) — an important test in the diagnosis of glaucoma. Its known for being accurate, fast, and user-friendly. Key Features • 3D Auto-Alignment: Ensures precise and consistent eye positioning. • Flex Control: Makes handling and adjustments easier for the operator. • Measurement Range: 0–60 mmHg. • Working Distance: 11 mm from the patient’s eye. • Display: 5-inch screen shows IOP readings and averages. • Built-in Printer: Prints results instantly for patient records. • Power Supply: 100–240V AC, 50​/​60 Hz. • Connectivity: RS232C port for external data transfer. • Power Consumption: Approx. 80 VA. • Operating Temperature: 10–40°C (50–104°F). • Chinrest Adjustment: 68 mm range for patient comfort. • Movement Ranges: • Forward​/​Backward: 44 mm • Left​/​Right: 88 mm • Up​/​Down: 28 mm Thank you for considering our product. If you have any questions or require further information, please don't hesitate to contact us. Return Policy: Items are sold as-is with no returns or refunds available unless explicitly stated.