Manually Set Fiber Sensor, Highly sensitive manual tuning made easy 12-turn potentiometer has been incorporated for fine adjustments. It enables the detection of very fine differences. Moreover, since the pointer of the indicator has a red backlight, you can confirm the position at a glance, even in a dark area.

● 12-turn potentiometer with a visible indicator

● Long life and reduced maintenance work-hours

● Rapid flashing “assist function” eases adjustment for optimum sensitivity