Photoelectric sensors; proximity sensors; optical fiber sensors; laser sensors; optical fiber cables; color sensors; pressure sensors; flow sensors; vision sensors; safety sensors; human body sensors for scientific use to be worn by a human to gather human biometric data; area sensors in the nature of proximity sensors; ultrasonic sensors; rotary encoders; temperature sensors; sensor controllers; panel meters; amperemeters; voltmeters; watt meters; tachometers; frequency meters; digital count...

ammeters, counters, frequency meters, indicators, speed indicators, speed measuring apparatus, tachometers, thermometers, time recording apparauts, voltmeters, photo electric sensor (switch), proximity switch (sensor), optical fiber sensor and rotary encoder (signal detector)