Kowa HA-2 Handheld Applanation Tonometer

The Kowa HA-2 Handheld Applanation Tonometer is a portable ophthalmic diagnostic instrument designed for measuring intraocular pressure (IOP) using applanation tonometry. Its compact lightweight and well-balanced construction allows the instrument to be operated with one hand. Kowa’s one-spring mechanism is designed to provide correct readings regardless of the patient's posture, making the HA-2 suitable for examinations where conventional slit-lamp-mounted tonometry may not be convenient. The HA-2 incorporates built-in illumination for use under different examination-room lighting conditions and features a direct-reading precision dial that does not require a separate conversion table. It is suitable for ophthalmology clinics, eye hospitals, screening programmes, bedside examinations and other settings requiring portable intraocular pressure measurement. Key Features Handheld applanation tonometer Compact lightweight design Suitable for one-handed operation Measures intraocular pressure 0–60 mmHg measurement scale Scale graduation of 1 mmHg One-spring mechanism for measurements in different patient positions Built-in illumination Direct-reading precision dial Interchangeable applanation prism 6× eyepiece magnification Movable head rest Battery-operated Portable design for clinical and mobile examinations Technical Specifications Specification Details Brand Kowa Model HA-2 Instrument Type Handheld Applanation Tonometer Measurement Intraocular Pressure Scale Range 0–60 mmHg Scale Division 1 mmHg Applanation Prism Interchangeable doubling prism Eyepiece Magnification 6× Head Rest Movable Illumination Control Interlocked with thumb wheel Lamp 2.5 V 0.25 A interchangeable lens bulb Battery 2 × 1.5 V replaceable batteries Instrument Length Approx. 290 mm Weight Approx. 240 g Operating Style Handheld