Portable single, dual & four channel models (VB5, VB6, VB7, & VB8), formerly known as Commtest VB Series.
Measure unbalance and calculate correction weights, formerly known as Commtest vbBalancer.
The Commtest Laser Tachometer and Block is a 5-volt, Class II laser tachometer for use with Commtest vbX instruments.
The laser has an optical range of 3.9 to 7.9 in (100 to 200 mm) and is rated Class I Division 2.
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