Why choose exeltech? Our commitment to quality and total customer satisfaction has allowed EXELTECH to become innovators in the DC to AC power product market for over 30 years.How do i contact extech customer service? [email protected]. 877-239-8324 Option 1. (9am to 5pm Eastern Time (UTC-5)) U.S. Tech Support. Submit Ticket. 877-239-8324 Option 2. (9am to 5pm Eastern Time (UTC-5)) U.S. Service. [email protected]. Why choose exexeltech inverters? EXELTECH offers more production models than any other inverter manufacturer, almost as many as all of the other inverter manufacturers combined. With over 30,000 inverter models available, if we can’t solve your power inverter problem, no one can.What is extech tvfilm property management? TV/Film Property Master or Production inquiries regarding the use or display of an Extech or FLIR product (s) in a TV or film production Textbook or technical documents/presentations for which a high resolution image of an Extech or FLIR product (s) is sought for inclusion