ðeɪ ˈɔːlsoʊ sˈuːpɚvˌaɪz ðə pɹˈɑːsɛs ænd jˈuːs ʌv tˌiːˌɛmdˌiːˈiː tə pɚfˈɔːɹm vˈoʊltɪdʒ, kˈɜːɹənt, pˈaʊɚ, ɪmpˈiːdəns, fɹˈiːkwənsi, mˈaɪkɹoʊwˌeɪv, tˈɛmpɹɪtʃɚ, fˈɪzɪkəldᵻmˈɛnʃənəl, ænd ˈɑːptɪkəl mˈɛʒɚmənts.
They also supervise the process and use of TMDE to perform voltage, current, power, impedance, frequency, microwave, temperature, physical-dimensional, and optical measurements.