Alloy Durable Pen-torch with Pupil Gauge
- CE Approved for Eye Medical Examination
- Replaceable 2AAA batteries provided
- LED presents warm yellow light for best eye comfort
- Pupil Gauge measuring 2mm-9mm for convenient referencing
- Ruler Gauge measuring 0cm-5cm for convenient referencing
- Saves battery: On/Off by pressing down on the toggle switch