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Diagnostic Equipment

Frey Tonometer TNP-200

Non‑contact IOP & CCT — clean‑air comfort, automatic accuracy


The TNP‑200 combines non‑contact tonometry and ultrasonic pachymetry in one fully automated desktop unit. A unique sealed‑path Clean Air (CLair) system, adaptive air‑puff technology, and on‑board CCT‑based IOP correction give clinicians fast, reproducible results while maximising patient comfort and safety.

Key Features
  • Clean‑Air Technology: CLair sealed air path prevents aerosol ingress, drastically reducing cross‑infection risk between patients. Soft air puff delivers a gentle, well‑shaped pulse that minimises startle and tear reflex.
  • Automatic Pressure Adjustment (APA): First puff gauges ocular rigidity; subsequent puffs auto‑tune pressure for each eye, improving accuracy and reducing patient discomfort.
  • Built‑in Pachymetry with Auto IOP Correction: Central corneal thickness is captured immediately after tonometry; IOP is corrected in real time using programmable Dresdner or Elsheikh algorithms.
  • Fully Motorised & Touch‑Driven: 3‑D auto‑alignment, auto‑shot, and a 7 ″ capacitive touchscreen streamline the test—just position the patient and tap Start. Electrically driven measurement head and chin rest accommodate both eyes without repositioning.
  • Connected & Workflow Ready: Wi‑Fi and LAN for direct EMR export; built‑in thermal printer produces 57 mm reports on demand. Internal flash stores up to 350 000 measurements (3 500 patients × 100 exams × 3 readings/eye).
Technical Specifications
IOP range / resolution 0 – 60 mmHg (0 – 80 hPa) / 1 mmHg
CCT range / resolution 300 – 1300 µm / 1 µm
Display 7 ″ (165 × 104 mm) colour TFT LCD, 800 × 480
Memory capacity 3 500 patients × 100 exams × 3 readings/eye
Head travel X 85 mm · Y 40 mm · Z 50 mm
Chin‑rest travel 69 mm (motorised)
Dimensions 460 (H) × 300 (W) × 480 (D) mm
Weight 18 kg
Printer Built‑in thermal, 57 mm width
Connectivity Wi‑Fi, LAN, XML data export
Power External 12 V / 5 A (100 – 240 V AC adapter), max 45 VA
Why Choose the TNP‑200?
  • : Two exams, one device — tonometry and pachymetry in under a minute, with automatic IOP correction.
  • : Patient‑centred comfort from soft, adaptive puffs and sealed air pathways.
  • : Hands‑off automation cuts training time and boosts throughput.
  • : Clean, connected data flow via Wi‑Fi/LAN plus onboard storage for hundreds of thousands of readings.
  • : Compact, hygienic design fits any diagnostic lane while supporting the highest infection‑control standards.

The Frey TNP‑200 delivers accurate, comfortable tonopachymetry that keeps both patients and clinicians confident—every test, every time.

Have a question? We would love to hear from you.


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