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The BTL21 has a built in LCD display, tri-light LED for pass/fail warning indication, voice count for battery ID and integrated save button. Comes with both long and short probe extenders for use in hard to reach battery cabinets.
by Caleb Evans
"I’m very pleased with this purchase. The product is of high quality and works as described. Shipping was also fast and efficient."
by Christopher Bennett
The product arrived quickly and in perfect condition. It works flawlessly and has become an essential part of my toolkit.