UNI-T UT372D 2-in-1 Contact & Non-Contact Tachometer – Photo RPM 1–99,999, Contact RPM, Surface Speed & Length, Bluetooth iENV App, ±0.02% G-300 Component Box and internal clamp diodes are

and internal clamp diodes are included

Although that means you do not need to continuously send it to signal to tie up your microcontroller

Application :

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UNI-T UT372D 2-in-1 Contact & Non-Contact Tachometer – Photo RPM 1–99,999, Contact RPM, Surface Speed & Length, Bluetooth iENV App, ±0.02% G-300 Component Box and internal clamp diodes areUNI T UT372D 2 in 1 contact & non contact (photo) tachometer with Bluetooth for measuring rotational speed (RPM), surface speed, length, frequency and counts on motors, fans, conveyors and machinery. Genuine UNI T product supplied by Digilog. pk with user manual and warranty. Key Features Non contact (optical) RPM 1 ~ 99,999 (target 50500 mm) Contact RPM 1 ~ 19,999 + surface speed & length Accuracy 0. 02% 1 digit Modes: contact non contact RPM,