How Do You Spell INTEGRATING WATTMETER?

Correct spelling for the English word "integrating wattmeter" is [ˈɪntɪɡɹˌe͡ɪtɪŋ wˈɒtmiːtə], [ˈɪntɪɡɹˌe‍ɪtɪŋ wˈɒtmiːtə], [ˈɪ_n_t_ɪ_ɡ_ɹ_ˌeɪ_t_ɪ_ŋ w_ˈɒ_t_m_iː_t_ə] (IPA phonetic alphabet).

Plural form of INTEGRATING WATTMETER is INTEGRATING WATTMETERS