Old Hat Transformers?
TSTM's incredible AccuPack™ replaces "old-hat" VT's.
Electric Utility Industry Support
TSTM Agents and Stocking Distributors are your resource for products and support with decades of knowledge and experience.
In 25 years, we've come a long way through innovation.
We're celebrating 25 years providing products for safer, more reliable and accurate metering, metering-application knowledge, and technical support for electric utilities, industrial applications, and agricultural installations.
A Day Of Remembrance
On Friday October 30th, 2020 TSTM, Inc. will be closed for a day of rest and reflection.
A Swiss Army Knife of Voltage Transformers
Our PowerPuck gives you the choice of voltage output making it the right choice for many applications.
When You're Smiling...The Whole World Smiles With You!
When your operation reduces 480v metering voltage to safer, more manageable levels, all kinds of wonderful things happen.
We Can Hunker Down. But We Can't Go Dark!
Safety - and the elimination of unnecessary risk to workers - has always been TSTM's mission.
Welcome Mcavoy & Markham
TSTM welcomes Mcavoy & Markham Engineering & Sales to our growing family of highly knowledgeable agents.
Cool Season - Warm Welcome...
John Pollard Returns as Director of Technical Operations. A Veteran of the USAF, John worked in Avionics on the F-15 Eagle.
Transformer-rated Meters in a Self-contained Socket?
Yep. You can go low-voltage in your self-contained sockets with meter adapters from TSTM.