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Customer Service is our #1 priority. We have experienced technical specialists available to provide knowledge and expertise to help you with your application needs.


All of our datasheets and manuals can be found on the individual product pages.

United States
Department Email Phone
U.S. Customer Service/Sales sales@extech.com 781-890-7440 ext. 220
U.S. Service Department repair@extech.com 781-890-7440 ext. 210
U.S. Technical Support support@extech.com 781-890-7440 ext. 200
International
Department Email Phone
International Sales export@extech.com 781-890-7440 ext. 225
International Service Department IntlRepair@extech.com 781-890-7440 ext. 210
International Technical Support IntlSupport@extech.com 781-890-7440 ext. 200

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Need to write us?

Mail to: Extech Instruments Corporation
285 Bear Hill Road
Waltham, MA 02451
U.S.A.
Fax us: 781-890-7864

Looking for directions? (click here for a map)

From Logan Airport
Take the Mass Pike West to exit 15 (route 128/95N). Take exit 26, the route 20 exit. Bear right toward Waltham coming off the exit. Take your first left onto Stow Street and follow the signs to route 117. At the end of Stow Street, turn left onto Main Street. Go back over Rt.128 and take your first right at the Mobil station onto Bear Hill Road. Extech Instruments is located about 1 mile, at the top of the second hill, on the right side.

From the North
Take 128/95S to exit 27B (Winter Street, Waltham). Follow the signs to Second Avenue/Bear Hill Road, which takes you into a U-turn. Take your first right after the DoubleTree Guest Suites hotel onto Second Avenue. Extech Instruments is located about 1 mile down on the left hand side, at the top of a hill.

From the South
Take 128/95N to exit 26, the route 20 exit. Bear right toward Waltham coming off the exit. Take your first left onto Stow Street and follow the signs to route 117. At the end of Stow Street, turn left onto Main Street. Go back over Rt.128 and take your first right at the Mobil station onto Bear Hill Road. Extech Instruments is located about 1 mile, at the top of the second hill, on the right side.

From the West
Take the Mass Pike West to exit 15 (route 128/95N). Take exit 26, the route 20 exit. Bear right toward Waltham coming off the exit. Take your first left onto Stow Street and follow the signs to route 117. At the end of Stow Street, turn left onto Main Street. Go back over Rt.128 and take your first right at the Mobil station onto Bear Hill Road. Extech Instruments is located about 1 mile, at the top of the second hill, on the right side.

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Reproduction in whole or in part without permission is prohibited.
285 Bear Hill Road Waltham, MA 02451-1064 USA
Call 781-890-7440 for assistance or fax us at 781-890-7864.