HOTO Instruments

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HOTO Instruments manufactures a portfolio of test equipment that includes Asker digital and analog durometers, tachometers, and LED stroboscopes. The lineup features auto‑loading and automatic micro durometers for evaluating hardness and other characteristics of rubber, elastomers, plastics, sponges, urethane foam, and polystyrene foam. LED stroboscopes are used to measure the speed of rotating or linearly moving objects without contact or reflective tape. Miniature tachometers and length meters provide precise measurement of surface velocities. Each instrument is delivered with NIST‑traceable calibration.

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