Pinpoint ultrasound from up to 300 feet (100 m) away using the PowerBeam 300 extended range attachment along with the CTRL UL101 Receiver and Headset.

PowerBeam 300

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.

Power Transmission
Corona discharge is a major contributor to energy loss and also Radio Frequency Interference

Electrical Inspection
Arcing - indication that a failure has occurred
Tracking - detectable even when infrared cannot

Leak Detection
Find leaks from further away and pinpoint to exact source without use of a scissor lift.

Steam Leaks/Traps
Detect leaks and operation from a safe distance.



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


Power Transmission - switch gear, transformers, etc.
Electrical Inspection - arcing, tracking, corona discharge
Leak Detection (Vacuum & Pressurized)
Steam Trap / Leak Inspection


Energy Savings
Corona Discharge
Electrical Arcing & Tracking to Prevent Arc Flash
Time Savings
Cost Savings vs. Corona Camera


GSA Contract #: GS-06F-0001 N
CTRL Cage Code: 62373