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CTRL Powerbeam 300

The Powerbeam 300 Parabolic Accessory

Pinpoint ultrasound from up to 300 feet (100m) away using the PowerBeam 300 extended range attachment along with the CTRL UL101 receiver and headset. The ultimate add-on for your ultrasound listening device.

Powerbeam 300

The PowerBeam 300 is a parabolic accessory originally designed to test high voltage insulators and transformers from a safe distance with a high degree of accuracy. The PowerBeam 300 can accurately pinpoint sources of ultrasound within 1 degree off target from up to 300 feet (91.44 meters) away.

The PowerBeam 300 accurately pinpoints source of ultrasound to within 1 degree from center and improves the sensitivity of the UL101. The "PB300" was originally designed for the indication and location of corona discharge and arcing on medium/high voltage transformers.

The PB300's ability to pinpoint ultrasound is very useful when finding compressed air/gas or steam leaks in pipes located on high ceilings. There is no need to get a ladder or scissor lift.


  • Energy Savings

  • Safety

  • Corona Discharge

  • Electrical Arcing & Tracking to Prevent Arc Flash

  • Time Savings

  • Cost Savings vs. Corona Camera

Technical Specifications

Distance of Reception

up to 300 ft Threshold of Sensitivity

0 dB SPL Resonance Frequency

40 kHz +/- 1 kHz Operating Temperature

-4° to +130° F (-20° to +54° C) Power Supply

standard AAA battery (x 2) Battery Life

30 continuous hours

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