Home of the VT-Pack.
For safer, more reliable metering.

TSTM (Two Sockets – Two Meters, Inc.) is dedicated to improving metering function, installation, cost and safety across the electricity industry.

Our initial products were designed to allow metering all poly- and single-phase installations using only two – and sometimes one – 9S meter. However, with this efficiency came increased reliability, safety and ease of installation. These important benefits have eclipsed our initial technical advances.

We’re out to make your work easier, less costly, and much, much safer.

TSTM VT Pack Warranty

Sign Up For the TSTM Newsletter
Your Email*
First Name
Last Name