Heymotachometer or Haemotachometer: How To spell?

The word Heymotachometer is misspelled against Haemotachometer, a noun meaning "Same as Haematachometer."

Haemotachometer has vowels 'ae' together mispronounced as 'ey'
Word contains consecutive vowels 'AE' in between alphabets h & motachometer is misspelled as 'EY'
Wrong Spelling:  h-ey-motachometer 
Correct Spelling:  h-ae-motachometer 
Find more incorrect spellings of Haemotachometer to spell right way.

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