Please see user manual of Tenma 72-775572-7755 on page 22 of the manual it refer to how to use for rpm measurements and it use same probes as shown on manual
See atteched user manual.
Reply from supplier regarding this RPM measurements.
Be noted that this function can only test the actual rotation speed of the automobile, The RPM means the rotating frequency of the main shaft of the engine per minute.
It cannot test the rotation Speed of a DC/AC motor.
Above picture just for you easy to understand,
Be noted that this function can only test the actual rotation speed of the automobile, The RPM means the rotating frequency of the main shaft of the engine per minute.
It cannot test the rotation Speed of a DC/AC motor.
Above picture just for you easy to understand,
Please note; Manufacture suggested probes are not supplied with unit,currently these are not our stock items ( IP09 file as shown below).


