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ONICON's Portable Clamp-on Transit Time Ultrasonic Flow Meter is a battery-operated flow meter specifically designed for use on a wide range of pipe sizes. The clamp-on design does NOT require a shutdown of flow or penetration of the pipe in any way when installing and operating this meter. Instead, precision-matched signal transducers are mounted on the pipe to accurately measure flow through the pipe wall.

StrikeAlert HD is the first personal lightning detector with a graphical display that shows you the lightning strike distance (from 0 - 40 miles away) as well as a 1-hour storm trend and intensity.

The Yellow Jacket family of eVac Digital Vacuum Gauges are the most accurate and precise vacuum instruments available for measuring vacuum pressure. They are small, lightweight, rugged, and easy to use, making them ideal for every HVAC/R professional out there.

Rugged, reliable performance and superior arc characteristics. Hot start and built-in arc control. Enclosed circuit board, automatic thermal overload protection with indicator light, fan on demand.